TP120: Annual tree productivity in permanent plots within the H.J. Andrews Experimental Forest, 2000-2004

Citation

Harmon, M.; Woolley, T. 2013. Annual tree productivity in permanent plots within the H.J. Andrews Experimental Forest, 2000-2004 Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/TP120 Accessed 2026-05-10.

Abstract

Tree cores were taken from trees in permanent plots within the H.J. Andrews Experimental Forest to estimate annual bole biomass increment. The purpose of measuring this was to determine how many trees need to be sampled within a stand in order to determine NPP accurately. Increment cores were extracted from all trees greater than 5 cm diameter at breast height in each site and measured for annual growth increment (cm). This data was used to explore a method for using increment cores in combination with long-term permanent plots and remeasurement records to estimate annual bole biomass increment.

Coverage

Temporal coverage: 2000-06-01 to 2004-09-30

Geographic coverage: Andrews Forest and vicinity and Wind River Reference Stands in the western Cascades of Oregon and southern Washington.

Spatial coverage:

Loading map…

Bounds: W -122.43270000, E -121.86768530, N 45.84017138, S 44.16920000

Purpose

To examine the rates of annual tree growth and productivity of different tree species and research sites across the Pacific Northwest.

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

URL: https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
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

URL: http://ceoas.oregonstate.edu/profile/jones/

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

URL: http://www.fsl.orst.edu/flel/index.htm
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

URL: http://www.michaelpnelson.com

ORCID: http://orcid.org/0000-0001-6917-4752
David Bell - Principal Investigator
Email: david.bell@usda.gov, david.bell@oregonstate.edu

URL: https://lemma.forestry.oregonstate.edu/about/david-bell

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

Mark E. Harmon
Role: Principal Investigator

Oregon State University;Dept. of Forest Science;321 Richardson Hall, Corvallis, OR, 97331-5752, USA

Phone: (541) 737-8455, (978) 724-0045 ext 223

Email: mark.harmon@oregonstate.edu

URL: http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
Kari B. O'Connell
Role: Other Researcher

Oregon State University Center for Research in Lifelong STEM Learning, Corvallis, OR, 97331, USA

Phone: (541) 737-1289

Email: kari.oconnell@oregonstate.edu

URL: http://stem.oregonstate.edu/people/kari-oconnell
Mark E. Harmon
Role: Creator

Oregon State University;Dept. of Forest Science;321 Richardson Hall, Corvallis, OR, 97331-5752, USA

Phone: (541) 737-8455, (978) 724-0045 ext 223

Email: mark.harmon@oregonstate.edu

URL: http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
Travis J. Woolley
Role: Creator

Email: twoolley@tnc.org

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

URL: http://andrewsforest.oregonstate.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

URL: http://andrewsforest.oregonstate.edu/

Study Description

Tree cores were taken from trees in permanent plots within the H.J. Andrews Experimental Forest to estimate annual bole biomass increment. The purpose of measuring this was to determine how many trees need to be sampled within a stand in order to determine NPP accurately. Increment cores were extracted from all trees greater than 5 cm diameter at breast height in each site and measured for annual growth increment (cm). This data was used to explore a method for using increment cores in combination with long-term permanent plots and remeasurement records to estimate annual bole biomass increment. To examine the rates of annual tree growth and productivity of different tree species and research sites across the Pacific Northwest. General Study Methods

Purpose: To examine the rates of annual tree growth and productivity of different tree species and research sites across the Pacific Northwest.

Methods

Method Steps

General Study Methods

Data Collection Within the two reference stands (mature and old-growth), all live trees greater than 5 cm diameter at breast height (DBH) were sampled. Within the second-growth site, samples were taken from tagged trees greater than 5 cm in DBH in the north half of each upland plot and the half of each riparian plot in the direction away from the gauging station. Sampling consisted of coring a tree at breast height, and recording DBH to the nearest 0.1 cm. In both the mature and old-growth sites, trees greater than 10 cm DBH were cored twice, at approximate right angles (preferentially the side-slope and upslope sides of the tree). In the second-growth site, only 1 core per tree was collected due to the smaller size of the trees. Increment cores were stored in paper straws and taken to the lab for preparation and measurement. Increment core preparation consisted of mounting individual cores on routed blocks with wood glue, allowing them to dry sufficiently, and sanding them with a grit of 240, with a belt sander. All cores were then measured for annual radial increment, growth (mm), and measurements were then converted to centimeters for subsequent analyses. Cores from the old-growth site were measured by hand using a microscope, and radial increment growth was averaged between the two samples for trees greater than 10 cm DBH. Increment cores from the mature and second-growth sites were measured using WinDendroTM image analysis software. All cores from these two sites were scanned to obtain an image for measurement, and the image was then digitally archived.

Sampling

Study Extent

Sampling frequency: Irregular

Sampling Description

Each of the three sites represents a different age class (second-growth, mature, and old-growth) and elevation with similar species composition (Table 2.1). All three sites are within the Tsuga heterophylla forest zone (Franklin and Dyrness 1973). The old-growth site (RS07) was sampled in the summer of 2000 (Fraser 2001). The 12 second-growth site (WS06) was sampled in the summer 2001 during regular measurement of the permanent plot, and the mature site (RS32) was sampled in the summer 2003. All three sites are part of a long-term permanent study plot network designed to monitor changes in forest composition, structure, and function (Acker et al. 1998). The old-growth and mature sites are 0.25 ha square reference stands divided into 4 equal-sized plots. The second-growth site is a small watershed study area that contains transects with small circular sampling plots (0.1 ha) spaced at regular intervals. Although these sites were not randomly selected, they are representative of the age classes in this forested landscape.

Spatial Sampling Units

Software

No software entries listed in this EML file.

Keywords

LTER controlled vocabulary: dendrochronology (theme), productivity (theme), biomass (theme), carbon cycling (theme), primary production (theme), plant growth (theme), organic matter (theme), forest ecosystems (theme), forests (theme), trees (theme)
Andrews Experimental Forest site thesaurus: mature forests (theme), conifers (theme)
LTER core research areas: primary production (theme), organic matter (theme)

Taxonomic Hierarchy

All Organisms: All Organisms
Highest common category (ca. kingdom): Plantae
Division or Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Hamamelididae
Order: Fagales
Genus: Castanea
Species: Castanea dentata
Family: Fagaceae
Genus: Chrysolepis
Species: Castanopsis chrysophylla
Family: Betulaceae
Genus: Alnus
Species: Alnus rubra
Subclass: Rosidae
Order: Rosales
Family: Rosaceae
Genus: Prunus
Species: Prunus emarginata
Order: Sapindales
Family: Aceraceae
Genus: Acer
Species: Acer glabrum
Species: Acer macrophyllum
Order: Cornales
Family: Cornaceae
Genus: Cornus
Species: Cornus nuttallii
Subclass: Dilleniidae
Order: Ericales
Family: Ericaceae
Genus: Arbutus
Species: Arbutus menziesii
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Cyperaceae
Genus: Carex
Species: Carex deweyana
Division or Phylum: Coniferophyta
Class: Pinopsida
Order: Taxales
Family: Taxaceae
Genus: Taxus
Species: Taxus brevifolia
Order: Pinales
Family: Cupressaceae
Genus: Calocedrus
Species: Calocedrus decurrens
Genus: Thuja
Species: Thuja plicata
Family: Pinaceae
Genus: Tsuga
Species: Tsuga heterophylla
Species: Tsuga mertensiana
Genus: Abies
Species: Abies grandis
Species: Abies amabilis
Species: Abies procera
Genus: Pseudotsuga
Species: Pseudotsuga menziesii

Data Entities

#	Entity	Metadata	Data
1	TP12001 TP12001 Physical tree and core measurements:	METADATA	DATA
2	TP12002 TP12002 Annual radial increment measurements:	METADATA	DATA

Metadata

TP12001 - TP12001

Object name: TP12001.csv

Records: 3746

Attributes: 17

Temporal coverage: 2000-06-01 to 2004-09-30

File size: 244321 byte

Checksum (MD5): 3326cf8a48bf86b1276785b09aeee576

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

Constraints (2)

primaryKey: PRIMARY
TP12001.STAND, TP12001.SPECIES
notNullConstraint: NOTNULL
TP12001.DBCODE, TP12001.ENTITY, TP12001.POSITION, TP12001.SAMPLE_MONTH, TP12001.SAMPLE_YEAR, TP12001.STAND, TP12001.SPECIES, TP12001.STUDYID

Attributes (17)

DBCODE - char(5) (nominal)

ID: TP12001.DBCODE

Database Code (assigned by FSDB data manager)

Type system: Microsoft SQL Server 2008

Code definitions (1)

TP120
FSDB Database code TP120

ENTITY - numeric(2,0) (interval)

ID: TP12001.ENTITY

Entity number (data table 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)

STUDYID - char(4) (ordinal)

ID: TP12001.STUDYID

Study id associated with reference stands and small watersheds at HJA

Type system: Microsoft SQL Server 2008

Code definitions (3)

WRE
Wind River Experimental Forest
HJRS
Andrews Forest and vicinity Reference Stands
HJWS
Andrews Forest and vicinity Watershed Reference Stands

STAND - char(4) (ordinal)

ID: TP12001.STAND

Name of reference stand or small watershed where tree is located

Type system: Microsoft SQL Server 2008

Code definitions (16)

WS01
Andrews Watershed 1
WS02
Andrews Watershed 2
WS06
Andrews Watershed 6
WS07
Andrews Watershed 7
RS01
Reference Stand RS01, H.J. Andrews EF, Willamette NF
RS07
Reference Stand RS07, H.J. Andrews EF, Willamette NF
RS12
Reference Stand RS12, H.J. Andrews EF, Willamette NF
RS26
Reference Stand RS26, H.J. Andrews EF, Willamette NF
RS35
Reference Stand RS35, Hagan Creek, Willamette NF
WR04
Reference Stand WR04, Panther Cr, Wind River EF, GPinchot NF
WR05
Reference Stand WR05, Panther Cr, Wind River EF, GPinchot NF
WR90
Reference Stand WR90, Panther Cr, Wind River EF, GPinchot NF
RS22
Reference Stand RS22, H.J. Andrews EF, Willamette NF
RS32
Reference Stand RS32, H.J. Andrews EF, Willamette NF
RS33
Reference Stand RS33, H.J. Andrews EF, Willamette NF
RS34
Reference Stand RS34, H.J. Andrews EF, Willamette NF

SAMPLE_YEAR - numeric(4,0) (ratio)

ID: TP12001.SAMPLE_YEAR

Year core was taken from tree

Type system: Microsoft SQL Server 2008

Unit: year (yyyy)

Precision: 1.000000

Numeric domain: type=natural, min=2000.0000 (exclusive=false), max=2004.0000 (exclusive=false)

SAMPLE_MONTH - numeric(2,0) (ratio)

ID: TP12001.SAMPLE_MONTH

Month core was taken from tree

Type system: Microsoft SQL Server 2008

Unit: month of year

Precision: 1.000000

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=12.0000 (exclusive=false)

TRANSECT - numeric(2,0) (ratio)

ID: TP12001.TRANSECT

Transect (if any) that plot is found on

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=10.0000 (exclusive=false)

PLOT - numeric(4,0) (ratio)

ID: TP12001.PLOT

Plot number or name within stand

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=8855.0000 (exclusive=false)

TAG - numeric(5,0) (ratio)

ID: TP12001.TAG

Tree tag number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=9987.0000 (exclusive=false)

SPECIES - char(5) (ordinal)

ID: TP12001.SPECIES

Species of tree from which core was taken

Type system: Microsoft SQL Server 2008

Code definitions (18)

ABAM
Abies amabilis
ABGR
Abies grandis
ABPR
Abies procera
ACGL
Acer glabrum
ACMA
Acer macrophyllum
ALRU
Alnus rubra
ARME
Arbutus menziesii
CADE3
Calocedrus decurrens
CONU
Cornus nuttallii
PREM
Prunus emarginata
PSME
Pseudotsuga menziesii
TABR
Taxus brevifolia
THPL
Thuja plicata
TSHE
Tsuga heterophylla
TSME
Tsuga mertensiana
CACH
Castanopsis chrysophylla
CADE
Carex deweyana
CADE4
Castanea dentata

DBH - numeric(5,1) (ratio)

ID: TP12001.DBH

Diameter at breast height of the tree at time the core was taken

Type system: Microsoft SQL Server 2008

Unit: centimeters

Precision: 0.100000

Numeric domain: type=real, min=0.1000 (exclusive=false), max=300.0000 (exclusive=false)

CORE_NUM - numeric(1,0) (ratio)

ID: TP12001.CORE_NUM

Core number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=3.0000 (exclusive=false)

POSITION - char(1) (nominal)

ID: TP12001.POSITION

Position on the tree where the core was taken in relation to topography

Type system: Microsoft SQL Server 2008

Code definitions (4)

D
Core Taken on downhill side of tree
U
Core Taken on uphill side of tree
S
Core Taken on sideslope of tree
X
Unknown core position

CORE_LENGTH - numeric(5,1) (ratio)

ID: TP12001.CORE_LENGTH

Total length of core at time of sampling, including bark, may not reach pith or may exceed pith

Type system: Microsoft SQL Server 2008

Unit: centimeters

Precision: 0.100000

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

SW_RAD - numeric(5,1) (ratio)

ID: TP12001.SW_RAD

Radial thickness of sapwood

Type system: Microsoft SQL Server 2008

Unit: centimeters

Precision: 0.100000

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

BARK_RAD - numeric(5,1) (ratio)

ID: TP12001.BARK_RAD

Radial thickness of bark

Type system: Microsoft SQL Server 2008

Unit: centimeters

Precision: 0.100000

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

COMMENTS - varchar(60) (nominal)

ID: TP12001.COMMENTS

Comments

Type system: Microsoft SQL Server 2008

TP12002 - TP12002

Object name: TP12002.csv

Records: 165494

Attributes: 9

Temporal coverage: 2000-06-01 to 2004-09-30

File size: 6390466 byte

Checksum (MD5): 2eb112479fcc2f43eaa45d47923eeb5c

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

Constraints (2)

primaryKey: PRIMARY
TP12002.CORE_NUM, TP12002.INCREMENT_YEAR, TP12002.STAND, TP12002.TAG
notNullConstraint: NOTNULL
TP12002.CORE_NUM, TP12002.DBCODE, TP12002.ENTITY, TP12002.INCREMENT_YEAR, TP12002.POSITION, TP12002.STAND, TP12002.STUDYID, TP12002.TAG

Attributes (9)

DBCODE - char(5) (nominal)

ID: TP12002.DBCODE

Database Code (assigned by FSDB data manager)

Type system: Microsoft SQL Server 2008

Code definitions (1)

TP120
FSDB Database code TP120

ENTITY - numeric(2,0) (interval)

ID: TP12002.ENTITY

Entity number (data table 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)

STUDYID - char(4) (ordinal)

ID: TP12002.STUDYID

Study id associated with reference stands and small watersheds at HJA

Type system: Microsoft SQL Server 2008

Code definitions (3)

WRE
Wind River Experimental Forest
HJRS
Andrews Forest and vicinity Reference Stands
HJWS
Andrews Forest and vicinity Watershed Reference Stands

STAND - char(4) (ordinal)

ID: TP12002.STAND

Name of reference stand or small watershed where tree is located

Type system: Microsoft SQL Server 2008

Code definitions (16)

WS01
Andrews Watershed 1
WS02
Andrews Watershed 2
WS06
Andrews Watershed 6
WS07
Andrews Watershed 7
RS01
Reference Stand RS01, H.J. Andrews EF, Willamette NF
RS07
Reference Stand RS07, H.J. Andrews EF, Willamette NF
RS12
Reference Stand RS12, H.J. Andrews EF, Willamette NF
RS26
Reference Stand RS26, H.J. Andrews EF, Willamette NF
RS35
Reference Stand RS35, Hagan Creek, Willamette NF
WR04
Reference Stand WR04, Panther Cr, Wind River EF, GPinchot NF
WR05
Reference Stand WR05, Panther Cr, Wind River EF, GPinchot NF
WR90
Reference Stand WR90, Panther Cr, Wind River EF, GPinchot NF
RS22
Reference Stand RS22, H.J. Andrews EF, Willamette NF
RS32
Reference Stand RS32, H.J. Andrews EF, Willamette NF
RS33
Reference Stand RS33, H.J. Andrews EF, Willamette NF
RS34
Reference Stand RS34, H.J. Andrews EF, Willamette NF

TAG - numeric(5,0) (ratio)

ID: TP12002.TAG

Tree tag number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=9987.0000 (exclusive=false)

CORE_NUM - numeric(1,0) (ratio)

ID: TP12002.CORE_NUM

Core number

Type system: Microsoft SQL Server 2008

Unit: number

Precision: 1

Numeric domain: type=natural, min=1.0000 (exclusive=false), max=3.0000 (exclusive=false)

POSITION - char(1) (nominal)

ID: TP12002.POSITION

Position on the tree where the core was taken in relation to topography

Type system: Microsoft SQL Server 2008

Code definitions (4)

D
Core Taken on downhill side of tree
U
Core Taken on uphill side of tree
S
Core Taken on sideslope of tree
X
Unknown core position

INCREMENT_YEAR - numeric(4,0) (ratio)

ID: TP12002.INCREMENT_YEAR

Year of measured annual radial increment

Type system: Microsoft SQL Server 2008

Unit: year (yyyy)

Precision: 1.000000

Numeric domain: type=natural, min=1786.0000 (exclusive=false), max=2004.0000 (exclusive=false)

INCREMENT_MEAS - numeric(5,3) (ratio)

ID: TP12002.INCREMENT_MEAS

Measured annual radial increment for INCREMENT_YEAR

Type system: Microsoft SQL Server 2008

Unit: centimeters

Precision: 0.010000

Numeric domain: type=real, min=0.0000 (exclusive=false), max=3.7000 (exclusive=false)

Units


month of year	month	datetime	MM	YYYY-MM-DDThh:mm:ss	N/A	month of year (MM)
centimeters	cm	length	centimeter	meter	0.01	centimeters; .01 meters
year (yyyy)	YYYY	datetime	YYYY	YYYY-MM-DDThh:mm:ss	N/A	year (4 character) portion of date
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

Woolley, Travis J. 2005. Inter-annual variability of net primary productivity across multiple spatial scales in the western Oregon Cascades: methods of estimation and examination of spatial coherence. Corvallis, OR: Oregon State University. 159 p. M.S. thesis.
Woolley, Travis J.; Harmon, Mark E.; O'Connell, Kari B. 2007. Estimating annual bole biomass production using uncertainty analysis. Forest Ecology and Management. 253: 202-210.

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.

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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 (2012-07-17)
Original upload of metadata from xls file into SQL.
Version2 (2013-08-06)
Uploaded data for entity 1 and 2 to SQL after running QC.

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TP120: Annual tree productivity in permanent plots within the H.J. Andrews Experimental Forest, 2000-2004

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Change History