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TV056: Comparisons among five canopy-cover estimating methods in five Douglas-fir/western hemlock structure types in the western Oregon Cascades

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Status: notPlanned
Period: 2001-06-26 to 2001-09-09
Version: 1
Published: 2004-09-08
EDI Package ID: knb-lter-and.3976.1
Source XML: TV056_1.xml

Notice

"As Is" Basis: All content, including maps and forecasts, is provided without warranties. Users are advised to independently verify critical information.

Citation

Fiala McIntosh, A. 2004. Comparisons among five canopy-cover estimating methods in five Douglas-fir/western hemlock structure types in the western Oregon Cascades Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/TV056 Accessed 2026-05-10.

Abstract

Estimates of forest canopy cover are widely used in forest research and management, yet methods used to quantify canopy cover and the estimates they provide vary greatly. Four ground-based techniques for estimating overstory cover -line- intercept, spherical densiometer, moosehorn, and hemispherical photography-and cover estimates generated using the Forest Vegetation Simulator (FVS) were compared in five Douglas- fir/western hemlock structure types in western Oregon. Differences in cover estimates among the ground-based methods did not depend on the structure type in which they were measured (p=0.33). As expected, estimates of cover increased and within-stand variability decreased with increasing angle of view among techniques. However, the moosehorn provided the most conservative estimates of vertical-projection overstory cover. The FVS-generated cover was consistently lower (by up to 44%, 17% on average) than the ground-based estimates and is not advised as a substitute for ground-based measures in these forest types. Regression equations are provided to allow conversion among canopy cover estimates developed with the four ground-based methods.

Coverage

Temporal coverage: 2001-06-26 to 2001-09-09

Geographic coverage: N/A

Bounds: W N/A, E N/A, N N/A, S N/A

Purpose
  • To compare four ground-based techniques for estimating forest overstory cover -line-intercept, spherical densiometer, moosehorn, and hemispherical photography-and cover estimates generated using the Forest Vegetation Simulator (FVS) in five Douglas-fir/western hemlock structure types in western Oregon.
Project

Title: Long-Term Ecological Research

Personnel
  • Sherri L. Johnson - Principal Investigator
    US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
    Phone: 541-758-7771
    Email: sherri.johnson2@usda.gov, sherri.johnson@oregonstate.edu
  • Julia A. Jones - Principal Investigator
    Oregon State University;Department of Geosciences; Wilkinson Hall 104, Corvallis, OR, 97331-5506, USA
    Phone: (541) 737-1224
    Email: Julia.Jones@oregonstate.edu, geojulia@comcast.net
    ORCID: http://orcid.org/0000-0001-9429-8925
  • Matthew G Betts - Principal Investigator
    Department of Forest Ecosystems and Society; 201E Richardson Hall; College of Forestry; Oregon State University, Corvallis, OR, 97331
    Phone: (541) 737-3841
    Email: matt.betts@oregonstate.edu
  • Michael P. Nelson - Principal Investigator
    Department of Forest Ecosystems and Society; 201K Richarson Hall; College of Forestry; Oregon State University, Corvallis, OR, 97331
    Phone: 541-737-9221
    Email: mpnelson@oregonstate.edu
    ORCID: http://orcid.org/0000-0001-6917-4752
  • David Bell - Principal Investigator
    Email: david.bell@usda.gov, david.bell@oregonstate.edu
Abstract
  • The H.J. Andrews Experimental Forest is a living laboratory that provides unparalleled opportunities for the study of forest and stream ecosystems in the central Cascade Range of Oregon. Since 1980, as a part of the National Science Foundation Long Term Ecological Research (NSF-LTER) program, the Andrews Experimental Forest has become a leader in the analysis of forest and stream ecosystem dynamics.
  • Long-term field experiments and measurement programs have focused on climate dynamics, streamflow, water quality, and vegetation succession. Currently researchers are working to develop concepts and tools needed to predict effects of natural disturbance, land use, and climate change on ecosystem structure, function, and species composition.
  • The Andrews Experimental Forest is administered cooperatively by the USDA Forest Service Pacific Northwest Research Station, Oregon State University and the Willamette National Forest. Funding for the research program comes from the National Science Foundation (NSF), US Forest Service Pacific Northwest Research Station, Oregon State University, and other sources.
Funding

Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. National Science Foundation: DEB1440409

Study Area Description
  • Long-Term Ecological Research
    The Andrews Forest is situated in the western Cascade Range of Oregon, and covers the entire 15,800-acre (6400-ha) drainage basin of Lookout Creek. Elevation ranges from 1350 to 5340 feet (410 to 1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. These forests are among the tallest and most productive in the world, with tree heights of often greater than 250 ft (75 m). Streams are steep, cold and clean, providing habitat for numerous aquatic organisms.
Associated Party
  • Steven L. Garman
    Role: Other Researcher
    USA
    Email: SLGarman@usgs.gov
  • Andrew N. Gray
    Role: Other Researcher
    USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
    Phone: (541) 750-7252
    Email: agray01@fs.fed.us
  • Anne C.S. Fiala McIntosh
    Role: Principal Investigator
    Department of Renewable Resources; 751 General Services Building; University of Alberta, Edmonton, Alberta, T6G 2H1, Canada
    Email: amcintos@ualberta.ca
  • Anne C.S. Fiala McIntosh
    Role: Creator
    Department of Renewable Resources; 751 General Services Building; University of Alberta, Edmonton, Alberta, T6G 2H1, Canada
    Email: amcintos@ualberta.ca
Contact
  • Information Manager
    Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
    Email: hjaweb@fsl.orst.edu
Publisher
  • Andrews Forest LTER Site
    Role: Publisher
    Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
    Phone: (541) 737-8480
    Email: lterweb@fsl.orst.edu
Study Description

Estimates of forest canopy cover are widely used in forest research and management, yet methods used to quantify canopy cover and the estimates they provide vary greatly. Four ground-based techniques for estimating overstory cover -line- intercept, spherical densiometer, moosehorn, and hemispherical photography-and cover estimates generated using the Forest Vegetation Simulator (FVS) were compared in five Douglas- fir/western hemlock structure types in western Oregon. Differences in cover estimates among the ground-based methods did not depend on the structure type in which they were measured (p=0.33). As expected, estimates of cover increased and within-stand variability decreased with increasing angle of view among techniques. However, the moosehorn provided the most conservative estimates of vertical-projection overstory cover. The FVS-generated cover was consistently lower (by up to 44%, 17% on average) than the ground-based estimates and is not advised as a substitute for ground-based measures in these forest types. Regression equations are provided to allow conversion among canopy cover estimates developed with the four ground-based methods. To compare four ground-based techniques for estimating forest overstory cover -line-intercept, spherical densiometer, moosehorn, and hemispherical photography-and cover estimates generated using the Forest Vegetation Simulator (FVS) in five Douglas-fir/western hemlock structure types in western Oregon. Field Methods - TV056

Purpose: To compare four ground-based techniques for estimating forest overstory cover -line-intercept, spherical densiometer, moosehorn, and hemispherical photography-and cover estimates generated using the Forest Vegetation Simulator (FVS) in five Douglas-fir/western hemlock structure types in western Oregon.

Methods

Method Steps

Field Methods - TV056
  • Canopy measurements for the four ground-based methods were collected for five subplots in each of the 52 stands. In each subplot, canopy measurements were recorded along 3 17-m slope- corrected line transects radiating out from the center of each subplot (azimuth 0, 120 and 240). The numbers and locations of canopy measurements differed for the four methods being compared, with replicate measures for the same technique located to minimize overlap. Densiometer measurements were recorded at the center of the subplot, and at slope-corrected distances of 8.5 and 17 m along each transect. Moosehorn measurements were recorded at the center of the subplot, and at 4.25-meter slope-corrected horizontal intervals along each of the three transects. Hemispherical photo-points were located at the center of each subplot, and at distances of 11.3 m along each transect.
Instrumentation - TV056
  • Convex spherical densiometer, moosehorn, hemispherical photography.
Algorithms - TV056
  • Statistics/algorithms (include name, description, and citation): The Forest Vegetation Simulator (FVS; Donnelly and Johnson 1997) is an individual tree, distance-independent growth and yield model (Donnelly and Johnson 1997), commonly used by the Forest Service to compare alternative forest treatments. Canopy cover is estimated by summing individual tree crown areas, using crown radii formulae developed for each species from regional inventory plots. The final stand-level canopy cover corrects for crown overlap by assuming random distribution of canopy elements (Crookston and Stage 1999). We calculated uncorrected and overlap-corrected cover for live trees on the sampled subplots in each stand using the unpublished FVS Region 6 crown radii formulae. However, in the PSP stands trees between 5-15 cm were only measured on a subset of the area, and this area could not be determined. Therefore, these tree sizes were omitted when calculating FVS cover for the PSP stands. [Crookston, N. L., and Stage, A.R. 1999. Percent canopy cover and stand structure statistics from the Forest Vegetation Simulator. USDA For. Serv. GTR. RMRS-GTR-24.]

Sampling

Study Extent
  • The study was conducted in 52 forested stands located in the Mt. Hood and Willamette National Forests of the Oregon Western Cascades during June - September 2001 (Fig. 1). Plots were located in the Tsuga heterophylla forest zone (Franklin and Dyrness 1973) and represented a range of Douglas-fir/western hemlock structure types. Stand-structure types included: young stands (38-52 years old) that were unthinned, lightly thinned, or heavily thinned; mature (120-180 years); and old-growth (greater than 250 years). Eight stands were sampled for each of the three types of young stands (Table 1). Half of these stands were from the Young Stand Thinning and Diversity Study sites harvested between 1994 and 1996 (CCEM 1996): control (unthinned, n=4), light thin (247- 375 trees per ha =[tph], n=4), and heavy thin (114-200 tph; n=4). The other half of these stands were from the Uneven-Aged Management Project stands harvested from 1999-2000 (CCEM 1999): control (unthinned, n=4), multi-storied stand (which we classified as light thin based on mean relative density [Husch et al. 1972] of 30; n=4), and single-tree selection (which we classified as heavy thin based on mean relative density of 20; n=4). Within each stand, there were 20-m apart parallel transect lines (North-South or East-West) and tree data were collected on multiple 0.1-ha subplots that were located along these transects. We randomly selected five of these subplots from each of the stands for use in this study. The mature and old-growth stand-structure types in this study each had 14 replicates (Table 1). The plots were comprised of USDA Forest Service Current Vegetation Survey National Forest Inventory plots (CVS) and Permanent Sample Plots (PSP; Acker et al. 1998). CVS plots were circular fixed-area plots systematically located on a 1.7-mile grid (3.4 miles in designated wilderness areas), with five systematically-located subplots in each plot. Subplots were arranged around a center subplot, with four subplots in cardinal directions with subplot centers 40.8 m from the middle subplot center. PSP plots were rectangular stem-mapped 1-ha plots. The PSP plots were subjectively located in the region around the HJ Andrews Experimental Forest (44.2N, 122.2W) to represent different community types of mature and old-growth forests. The mature stands in this study were randomly selected from 35 PSP and CVS plots that were between the ages of 120-180 years and dominated by Douglas-fir. The old-growth stands were randomly selected from 73 CVS and PSP stands that were greater than 250 years. We used the systematic five-subplot arrangement established by the CVS program for all the PSP and CVS plots used in this study. Additional information is included in Anne Fiala's MS Thesis: Forest Canopy Structure in Western Oregon: Characterization, Methods for Estimation, Prediction, and Importance to Avian Species on file in the FSL reprint room and the library.
  • Sampling frequency: Each of the 52 stands was visited once.
Sampling Description
  • This study was a split-plot design with stand-structure type as the whole-plot level treatment and the technique for estimating cover as the sub-plot treatment. Each stand was an experimental unit.
Software

No software entries listed in this EML file.

Keywords
  • LTER controlled vocabulary: community structure (theme), populations (theme), photo point imagery (theme), canopies (theme)
  • LTER core research areas: populations (theme)
Taxonomic Hierarchy
  • All Organisms: All Organisms
  • Highest common category (ca. kingdom): Plantae
  • Division or Phylum: Coniferophyta
  • Class: Pinopsida
  • Order: Pinales
  • Family: Cupressaceae
  • Genus: Thuja
  • Species: Thuja plicata
  • Family: Pinaceae
  • Genus: Pseudotsuga
  • Species: Pseudotsuga menziesii
  • Genus: Larix
  • Species: Larix occidentalis
  • Genus: Abies
  • Species: Abies grandis
  • Species: Abies amabilis
  • Genus: Pinus
  • Genus: Tsuga
  • Species: Tsuga mertensiana
  • Species: Tsuga heterophylla
  • Order: Taxales
  • Family: Taxaceae
  • Genus: Taxus
  • Species: Taxus brevifolia
  • Division or Phylum: Magnoliophyta
  • Class: Liliopsida
  • Subclass: Asteridae
  • Order: Asterales
  • Family: Asteraceae
  • Genus: Cotula
  • Species: Cotula coronopifolia
  • Order: Dipsacales
  • Family: Caprifoliaceae
  • Genus: Symphoricarpos
  • Genus: Sambucus
  • Class: Magnoliopsida
  • Subclass: Rosidae
  • Order: Rhamnales
  • Family: Rhamnaceae
  • Genus: Rhamnus
  • Species: Rhamnus purshiana
  • Order: Rosales
  • Family: Rosaceae
  • Genus: Holodiscus
  • Species: Holodiscus discolor
  • Genus: Amelanchier
  • Genus: Prunus
  • Species: Prunus emarginata
  • Order: Sapindales
  • Family: Aceraceae
  • Genus: Acer
  • Species: Acer macrophyllum
  • Species: Acer circinatum
  • Order: Cornales
  • Family: Cornaceae
  • Genus: Cornus
  • Species: Cornus nuttallii
  • Subclass: Hamamelididae
  • Order: Fagales
  • Family: Betulaceae
  • Genus: Alnus
  • Species: Alnus rubra
  • Family: Fagaceae
  • Genus: Chrysolepis
  • Species: Castanopsis chrysophylla
  • Genus: Quercus
  • Subclass: Dilleniidae
  • Order: Salicales
  • Family: Salicaceae
  • Genus: Salix
  • Genus: Populus
  • Species: Populus tremuloides
  • Order: Ericales
  • Family: Ericaceae
  • Genus: Arctostaphylos
  • Genus: Arbutus
  • Species: Arbutus menziesii
  • Genus: Gaultheria
  • Species: Gaultheria shallon
  • Genus: Rhododendron
  • Species: Rhododendron macrophyllum
  • Genus: Vaccinium
  • Order: Malvales
  • Family: Malvaceae
  • Genus: Iliamna
Data Entities
# Entity Metadata Data
1 TV05601
TV05601
Comparison of the cover measurements for each stand: This table has calculated the stand-level mean and standard errors for each of the methods within each of the 52 stands.
 METADATA DATA
2 TV05602
TV05602
Densiometer measurements within each stand: This table has the raw data collected for the densiometer in each stand.
 METADATA DATA
3 TV05603
TV05603
Hemispherical photography measurements within each stand: This table has the raw ISF values for photos analyzed for cover.
 METADATA DATA
4 TV05604
TV05604
Line-intercept measurements within each stand.: This table has the raw data on each line-intercept measure collected within each stand.
 METADATA DATA
5 TV05605
TV05605
Moosehorn measurements within each stand.: This table has the raw mooosehorn measures for each stand.
 METADATA DATA
6 TV05606
TV05606
Information on the plot locations: This table contains general information on the plots: locations, etc.
 METADATA DATA
Metadata
TV05601 - TV05601

Object name: TV05601.csv

Records: 52

Attributes: 13

Temporal coverage: 2001-06-25 to 1000-01-01

File size: 4726 byte

Checksum (MD5): 3176a4ad071444330af06aa0acb6ad6b

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05601.PLOT, TV05601.TYPE
  • notNullConstraint: NOTNULL
    TV05601.DBCODE, TV05601.DENSIOMETERCOVER, TV05601.DENSIOMSE, TV05601.FEYESE, TV05601.FISHEYECOVER, TV05601.FVSCOVER, TV05601.LICOVER, TV05601.LISE, TV05601.MOOSECOVER, TV05601.MOOSESE, TV05601.PLOT, TV05601.TYPE, TV05601.ENTITY
Attributes (13)
DBCODE - char(5) (nominal)

ID: TV05601.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05601.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=1.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05601.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
TYPE - char(10) (nominal)

ID: TV05601.TYPE

Forest structure group that the stand belongs to

Type system: Microsoft SQL Server 2008

Code definitions (5)
  • Mature
    Mature structure group (120-180 years)
  • OG
    Old-growth structure group (>250 years)
  • control
    Young unthinned structure group
  • heavy
    Young heavy-thin structure group
  • light
    Young light-thin structure group
MOOSECOVER - numeric(8,4) (ratio)

ID: TV05601.MOOSECOVER

Mean stand-level cover using moosehorn method

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

DENSIOMETERCOVER - numeric(8,4) (ratio)

ID: TV05601.DENSIOMETERCOVER

Mean stand-level cover using densiometer

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

FISHEYECOVER - numeric(8,4) (ratio)

ID: TV05601.FISHEYECOVER

Mean stand-level cover using hemispherical photography

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

LICOVER - numeric(8,4) (ratio)

ID: TV05601.LICOVER

Mean stand-level cover using line-intercept data

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

FVSCOVER - numeric(8,4) (ratio)

ID: TV05601.FVSCOVER

Mean stand-level cover using FVS Region 6 Variant equations

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

MOOSESE - numeric(7,3) (ratio)

ID: TV05601.MOOSESE

Within-stand standard error of moosehorn measurements

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

DENSIOMSE - numeric(7,3) (ratio)

ID: TV05601.DENSIOMSE

Within-stand standard error of densiometer measurements

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

FEYESE - numeric(7,3) (ratio)

ID: TV05601.FEYESE

Within-stand standard error of fisheye measurements

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

LISE - numeric(7,3) (ratio)

ID: TV05601.LISE

Within-stand standard error of line-intercept measurements

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

TV05602 - TV05602

Object name: TV05602.csv

Records: 1818

Attributes: 11

Temporal coverage: 2001-06-26 to 1000-01-01

File size: 67010 byte

Checksum (MD5): d1c3b8f217e8452ef0d204330067aa47

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05602.SUBPLOT, TV05602.TRANSECT
  • notNullConstraint: NOTNULL
    TV05602.DBCODE, TV05602.DISTANCE, TV05602.EAST, TV05602.NORTH, TV05602.SOUTH, TV05602.SUBPLOT, TV05602.TOTAL_COUNT, TV05602.TRANSECT, TV05602.WEST, TV05602.ENTITY
Attributes (11)
DBCODE - char(5) (nominal)

ID: TV05602.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05602.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=2.0000 (exclusive=false), max=2.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05602.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
SUBPLOT - char(3) (nominal)

ID: TV05602.SUBPLOT

Identifier for the subplot in which data were collected, 5 subplots total per stand

Type system: Microsoft SQL Server 2008

TRANSECT - char(1) (nominal)

ID: TV05602.TRANSECT

The transect along which the information was collected

Type system: Microsoft SQL Server 2008

Code definitions (4)
  • code
    Measurement takes place at the center of the subplot (where the three transects converge)
  • 1
    Transect that faces directly north, azimuth: 0 degrees.
  • 2
    Transect that faces at an azimuth of 120 degrees
  • 3
    Transect that travels out at an azimuth of 240 degrees.
DISTANCE - numeric(5,2) (ratio)

ID: TV05602.DISTANCE

The slope UN-corrected distance along the transect where the measurement was taken.

Type system: Microsoft SQL Server 2008

Unit: meters

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=29.0000 (exclusive=false)

NORTH - numeric(3,0) (interval)

ID: TV05602.NORTH

The number of points NOT intersected by cover (maximum of 17) in the 17-point pie shaped area of the densiometer when facing in north direction (See Strickler 1959).

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=17.0000 (exclusive=false)

EAST - numeric(3,0) (interval)

ID: TV05602.EAST

The number of points NOT intersected by cover (maximum of 17) in the 17-point pie shaped area of the densiometer when facing in east direction (See Strickler 1959).

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=17.0000 (exclusive=false)

SOUTH - numeric(3,0) (interval)

ID: TV05602.SOUTH

The number of points NOT intersected by cover (maximum of 17) in the 17-point pie shaped area of the densiometer when facing in south direction (See Strickler 1959).

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=17.0000 (exclusive=false)

WEST - numeric(3,0) (interval)

ID: TV05602.WEST

The number of points NOT intersected by cover (maximum of 17) in the 17-point pie shaped area of the densiometer when facing in west direction (See Strickler 1959).

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=17.0000 (exclusive=false)

TOTAL_COUNT - numeric(3,0) (interval)

ID: TV05602.TOTAL_COUNT

The sum of points from all four cardinal directions NOT intersected by cover

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=68.0000 (exclusive=false)

TV05603 - TV05603

Object name: TV05603.csv

Records: 1039

Attributes: 6

Temporal coverage: 2001-06-27 to 1000-01-01

File size: 31298 byte

Checksum (MD5): bfc605595efa54aec52eefa79fa512b4

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05603.SUBPLOT
  • notNullConstraint: NOTNULL
    TV05603.DBCODE, TV05603.FECOVER, TV05603.ISF, TV05603.SUBPLOT, TV05603.ENTITY
Attributes (6)
DBCODE - char(5) (nominal)

ID: TV05603.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05603.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=3.0000 (exclusive=false), max=3.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05603.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
SUBPLOT - char(3) (nominal)

ID: TV05603.SUBPLOT

Identifier for the subplot in which data were collected, 5 subplots total per stand

Type system: Microsoft SQL Server 2008

ISF - numeric(5,3) (ratio)

ID: TV05603.ISF

The indirect site factor calculated using Canopy analysis program (Rich 1989)

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=0.5000 (exclusive=false)

FECOVER - numeric(4,1) (ratio)

ID: TV05603.FECOVER

The cover estimated from the analysis of a fisheye photo for one of the photo-points in a given subplot

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=real, min=51.0000 (exclusive=false), max=100.0000 (exclusive=false)

TV05604 - TV05604

Object name: TV05604.csv

Records: 4419

Attributes: 9

Temporal coverage: 2001-06-28 to 1000-01-01

File size: 172519 byte

Checksum (MD5): 966f2d666e4a9ea689a8662bdbed8413

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05604.SPECIES, TV05604.SUBPLOT, TV05604.TRANSECT
  • notNullConstraint: NOTNULL
    TV05604.DBCODE, TV05604.SPECIES, TV05604.SUBPLOT, TV05604.TRANSECT, TV05604.ENTITY
Attributes (9)
DBCODE - char(5) (nominal)

ID: TV05604.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05604.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=4.0000 (exclusive=false), max=4.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05604.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
SUBPLOT - char(3) (nominal)

ID: TV05604.SUBPLOT

Identifier for the subplot in which data were collected, 5 subplots total per stand

Type system: Microsoft SQL Server 2008

TRANSECT - char(1) (nominal)

ID: TV05604.TRANSECT

The transect along which the information was collected

Type system: Microsoft SQL Server 2008

Code definitions (4)
  • code
    Measurement takes place at the center of the subplot (where the three transects converge)
  • 1
    Transect that faces directly north, azimuth: 0 degrees.
  • 2
    Transect that faces at an azimuth of 120 degrees
  • 3
    Transect that travels out at an azimuth of 240 degrees.
SPECIES - char(6) (nominal)

ID: TV05604.SPECIES

Tree or shrub species that intercepted a line transect

Type system: Microsoft SQL Server 2008

Code definitions (31)
  • ABIES
    Abies
  • ABAM
    Abies amabilis
  • ABGR
    Abies grandis
  • ACCI
    Acer circinatum
  • ACMA
    Acer macrophyllum
  • ALRU
    Alnus rubra
  • AMELA
    Amelanchier
  • ARME
    Arbutus menziesii
  • ARCTO3
    Arctostaphylos
  • CONU
    Cornus nuttallii
  • COCO
    Cotula coronopifolia
  • GASH
    Gaultheria shallon
  • HODI
    Holodiscus discolor
  • ILIAM
    Iliamna
  • LAOC
    Larix occidentalis
  • PINUS
    Pinus
  • POTR
    Populus tremuloides
  • PREM
    Prunus emarginata
  • PSME
    Pseudotsuga menziesii
  • QUERC
    Quercus
  • RHPU
    Rhamnus purshiana
  • RHMA
    Rhododendron macrophyllum
  • SALIX
    Salix
  • SAMBU
    Sambucus
  • SYMPH
    Symphoricarpos
  • TABR
    Taxus brevifolia
  • THPL
    Thuja plicata
  • TSHE
    Tsuga heterophylla
  • TSME
    Tsuga mertensiana
  • VACCI
    Vaccinium
  • CACH
    Castanopsis chrysophylla
LAYER - char(1) (nominal)

ID: TV05604.LAYER

The layer in which cover data were recorded, maximum of three layers, with layer 1 the tallest layer and layer 3 the shortest.

Type system: Microsoft SQL Server 2008

Code definitions (4)
  • code
    There were no trees intercepting the given line-transect
  • 1
    Layer 1 is the uppermost layer of trees, with it being >= 5 m taller than the next tallest layer Layer 2)
  • 2
    Layer 2 is the middle layer of trees, with it being >=5m shorter than the uppermost layer (1) and >-5 m taller than a lower cohort of trees
  • 3
    Layer 3 is the lowermost layer of trees (using max of 3 layers as the set criteria), with it being at least 5 m mean height shorter than layer 2.
STARTDIST - numeric(4,1) (ratio)

ID: TV05604.STARTDIST

The slope-uncorrected distance at which a crown first intercepted a line transect (* this may be reversed, so distance intercepted by crown is the absolute difference between startdist and enddist.)

Type system: Microsoft SQL Server 2008

Unit: decimeters

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=22.8000 (exclusive=false)

ENDDIST - numeric(4,1) (ratio)

ID: TV05604.ENDDIST

The slope-uncorrected distance at which the crown of a tree species last intercepted a line transect

Type system: Microsoft SQL Server 2008

Unit: decimeters

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=24.0000 (exclusive=false)

TV05605 - TV05605

Object name: TV05605.csv

Records: 3376

Attributes: 7

Temporal coverage: 2001-06-29 to 1000-01-01

File size: 97457 byte

Checksum (MD5): cd09b79a8678fbea81b6407f86b2b4c5

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05605.SUBPLOT
  • notNullConstraint: NOTNULL
    TV05605.COUNT, TV05605.DBCODE, TV05605.DISTANCE, TV05605.SUBPLOT, TV05605.TRANSECT, TV05605.ENTITY
Attributes (7)
DBCODE - char(5) (nominal)

ID: TV05605.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05605.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=5.0000 (exclusive=false), max=5.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05605.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
SUBPLOT - char(3) (nominal)

ID: TV05605.SUBPLOT

Identifier for the subplot in which data were collected, 5 subplots total per stand

Type system: Microsoft SQL Server 2008

TRANSECT - char(1) (nominal)

ID: TV05605.TRANSECT

The transect along which the information was collected

Type system: Microsoft SQL Server 2008

Code definitions (4)
  • code
    Measurement takes place at the center of the subplot (where the three transects converge)
  • 1
    Transect that faces directly north, azimuth: 0 degrees.
  • 2
    Transect that faces at an azimuth of 120 degrees
  • 3
    Transect that travels out at an azimuth of 240 degrees.
DISTANCE - numeric(5,2) (ratio)

ID: TV05605.DISTANCE

The slope UN-corrected distance along the transect where the measurement was taken.

Type system: Microsoft SQL Server 2008

Unit: meters

Precision: 1

Numeric domain: type=real, min=0.0000 (exclusive=false), max=24.0000 (exclusive=false)

COUNT - numeric(3,0) (interval)

ID: TV05605.COUNT

The number of cross-hair intersections NOT intercepted by cover (maximum=36)

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=36.0000 (exclusive=false)

TV05606 - TV05606

Object name: TV05606.csv

Records: 260

Attributes: 12

Temporal coverage: 2001-06-30 to 1000-01-01

File size: 17927 byte

Checksum (MD5): f0e7137701162a997815bf51b77dd3f8

Format: headers=1, recordDelimiter=\r\n, fieldDelimiter=,, quoteCharacter=", orientation=column

Constraints (2)
  • primaryKey: PRIMARY
    TV05606.SUBPLOT
  • notNullConstraint: NOTNULL
    TV05606.BAHA, TV05606.DATE, TV05606.DBCODE, TV05606.SUBPLOT, TV05606.TRANSECT1, TV05606.TRANSECT2, TV05606.TRANSECT3, TV05606.UTM_EASTING, TV05606.UTM_NORTHING, TV05606.ENTITY
Attributes (12)
DBCODE - char(5) (nominal)

ID: TV05606.DBCODE

Database Code

Type system: Microsoft SQL Server 2008

Code definitions (1)
  • TV056
    FSDB Database Code
ENTITY - numeric(1,0) (ratio)

ID: TV05606.ENTITY

Entity Number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=6.0000 (exclusive=false), max=6.0000 (exclusive=false)

PLOT - char(10) (nominal)

ID: TV05606.PLOT

Identifier for stand where data were collected.

Type system: Microsoft SQL Server 2008

Code definitions (52)
  • 1080116
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1086120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1096144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 1110156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2079120
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2080122
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2084138
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2085152
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2087136
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2097140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2098146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2099144
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2102154
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2105140
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2129156
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2135146
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • 2146186
    Eight digit number is the plot identifier for the code for the USDA Forest Service Current Vegetation Survey plot that was used in the study
  • RS1
    Plot identifier for Permanent Sample plots used in this study.
  • RS2
    Plot identifier for Permanent Sample plots used in this study.
  • RS20
    Plot identifier for Permanent Sample plots used in this study.
  • RS21
    Plot identifier for Permanent Sample plots used in this study.
  • RS26
    Plot identifier for Permanent Sample plots used in this study.
  • RS28
    Plot identifier for Permanent Sample plots used in this study.
  • RS29
    Plot identifier for Permanent Sample plots used in this study.
  • RS3
    Plot identifier for Permanent Sample plots used in this study.
  • RS30
    Plot identifier for Permanent Sample plots used in this study.
  • RS35
    Plot identifier for Permanent Sample plots used in this study.
  • TAC1
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC10
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC11
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC13
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC14
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC15
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC2
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC3
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC5
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC6
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC7
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • TAC9
    Plot identifier for Young Stand Thinning and Diversity stands used in this study.
  • UA1
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA11
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA12
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA13
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA15
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA16
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA3
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA4
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA5
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA7
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA8
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
  • UA9
    Plot identifier for HJA Unevenaged Management Project stands used in this study.
SUBPLOT - char(3) (nominal)

ID: TV05606.SUBPLOT

Identifier for the subplot in which data were collected, 5 subplots total per stand

Type system: Microsoft SQL Server 2008

UTM_EASTING - numeric(10,0) (interval)

ID: TV05606.UTM_EASTING

UTM Easting coordinate

Type system: Microsoft SQL Server 2008

Unit: meters

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=10569161.0000 (exclusive=false)

UTM_NORTHING - numeric(1,0) (interval)

ID: TV05606.UTM_NORTHING

UTM Northing coordinate

Type system: Microsoft SQL Server 2008

Unit: meters

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=5033837.0000 (exclusive=false)

TRANSECT1 - numeric(4,0) (interval)

ID: TV05606.TRANSECT1

The slope of the transect that moves outwards at azimuth 0 degrees (North)

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

TRANSECT2 - numeric(4,0) (interval)

ID: TV05606.TRANSECT2

The slope of the transect that moves outwards at azimuth 120 degrees

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

TRANSECT3 - numeric(4,0) (interval)

ID: TV05606.TRANSECT3

The slope of the transect that moves outwards at azimuth 240 degrees

Type system: Microsoft SQL Server 2008

Unit: percent

Precision: 1

Numeric domain: type=whole, min=0.0000 (exclusive=false), max=100.0000 (exclusive=false)

DATE - datetime (dateTime)

ID: TV05606.DATE

The date the stand was surveyed.

Type system: Microsoft SQL Server 2008

Date format: YYYY-MM-DD

BAHA - numeric(8,4) (ratio)

ID: TV05606.BAHA

the basal area of the stand

Type system: Microsoft SQL Server 2008

Unit: square meters per hectare

Precision: 1

Numeric domain: type=real, min=19.0000 (exclusive=false), max=174.0000 (exclusive=false)

COMMENTS - varchar(100) (nominal)

ID: TV05606.COMMENTS

General comments on a given stand

Type system: Microsoft SQL Server 2008

Units
decimeters dm length decimeter meter 0.1 decimeters; .1 meters
square meters per hectare m2/ha areaPerArea meterSquaredPerHectare meterSquaredPerMeterSquared .0001 square meters per hectare
percent % dimensionless number dimensionless 100 percent; a number
meters m length meter meter 1 meter; SI unit of length
number number dimensionless number dimensionless 1 dimensionless number, i.e., ratio, count
Related Datasets

No related dataset codes found in the EML text fields.

Related Publications
  • Fiala, Anne C. S.; Garman, Steven L.; Gray, Andrew N. 2006. Comparison of five canopy cover estimation techniques in the western Oregon Cascades. Forest Ecology and Management. 232: 188-197.
Related Files

No related files listed in this EML file.

Intellectual Rights

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

Licensed

License: N/A

Maintenance

Maintenance update frequency: notPlanned

Description

  • An update history is logged and maintained with each new version of every dataset.

Change History

  • Version1 (2004-09-08)
    Metadata restructured and moved into SQLServer metadata database LTERMETA. Data moved into SQLServer database FSDBDATA.