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TD017
Comparison of terrestrial versus aquatic decomposition rates of logs at the Andrews Experimental Forest, 1985 to 2015
Mark
E.
Harmon
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 737-8455
(978) 724-0045 ext 223
mark.harmon@oregonstate.edu
http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
http://orcid.org/0000-0002-4195-8288
Becky
Fasth
Oregon State University;College of Forestry;Dept. of Forest Ecosystems and Society; 201L Richardson Hall
Corvallis
OR
97331
USA
(541) 737-8431
(541) 737-8460
becky.fasth@oregonstate.edu
Mark
E.
Harmon
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 737-8455
(978) 724-0045 ext 223
mark.harmon@oregonstate.edu
http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
http://orcid.org/0000-0002-4195-8288
Principal Investigator
Stanley
V.
Gregory
Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104
Corvallis
OR
97331
USA
(541) 737-1951
stanley.gregory@oregonstate.edu
http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm
Other Researcher
Mark
E.
Harmon
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 737-8455
(978) 724-0045 ext 223
mark.harmon@oregonstate.edu
http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
http://orcid.org/0000-0002-4195-8288
Abstractor
Mark
E.
Harmon
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 737-8455
(978) 724-0045 ext 223
mark.harmon@oregonstate.edu
http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
http://orcid.org/0000-0002-4195-8288
Creator
2018-06-19
The data collected from this study describe the decomposition of small logs (20-30 cm diameter, 2 m length) in a stream channel to those on an adjacent upland site at the H. J. Andrews Experimental Forest. The stream is a 3rd order above the junction of Lookout Creek and Mack Creek. Three species of trees are being examined: Douglas-fir, western hemlock, and red alder. Data collection started in 1985 and is scheduled to continue to 2050. Periodically a subset of logs is resampled to determine changes in volume, bark cover, density, and nutrient stores. The last set of samples was collected in 2005. Logs ranging in diameter between 20 and 30 cm of a length of 2 m were cut out of live trees of the three species. Logs were placed by hand along a skid road at the terrestrial site. A cable system was used to place log randomly along a stream reach. The location of logs in the stream is noted when they are sampled. The length and diameter as well as bark cover of each sampled log is noted at the time of sampling (td01701). Six cross-sections are removed with a chainsaw. The thickness of the tissue types is noted (inner bark, outer bark, sapwood, and heartwood) and are described in td01702. Samples of each tissue type are taken to determine their moisture content (water mass/dry mass) and density (dry mass/green volume). Density is derived from dry mass and volume as determined via dimensional measurements. Dimensional data, volumes, masses, density, and moisture content are documented in the td01703 table. The volume of logs and tissue types, the total mass, and proportional mass of the tissue types as well as moisture contents is derived from the data in the other data tables and is stored in the td01704 table.
geomorphology
decay rates
decomposition
inorganic nutrients
woody debris
coarse woody debris
organic matter
logs
LTER controlled vocabulary
inorganic nutrients
organic matter
LTER core research areas
Additional data may be collected from the terrestrial part of the experiment. The aquatic part of the experiment is complete as there are no more logs to measure.
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.
http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=TD017
H.J. Andrews Experimental Forest along the upper section of Lookout Creek.
-122.11794400
-122.11794400
44.22232200
44.22232200
1985-06-04
2015-06-16
All Organisms
All Organisms
Highest common category (ca. kingdom)
Plantae
Division or Phylum
Magnoliophyta
Class
Magnoliopsida
Subclass
Hamamelididae
Order
Fagales
Family
Betulaceae
Genus
Alnus
Species
Alnus rubra
Division or Phylum
Coniferophyta
Class
Pinopsida
Order
Pinales
Family
Pinaceae
Genus
Tsuga
Species
Tsuga heterophylla
Genus
Pseudotsuga
Species
Pseudotsuga menziesii
This study is contrasting decomposition of logs within a stream versus on an adjacent terrestrial site at the H. J. andrews Experimental Forest. Changes in log volume associated with fragmentation and changes in wood density associated with leaching and respiration are being followed.
An update history is logged and maintained with each new
version of every dataset.
notPlanned
Original metadata creation
Version1
1985-01-01
Prepared metadata for move from Foxpro to SQL server
Version2
2005-06-01
Moved database to SQL server
Version3
2005-06-03
Restructured entity; edited attribute names and combined year, month, day to sampledate. Ran QC, recreated SQL structures, uploaded data. All for preparation to load into PASTA.
Version8
2015-11-25
Added new 2005 and 2015 data.
Version10
2018-06-19
Information Manager
Andrews Forest LTER Program
US Forest Service Pacific Northwest Research Station
3200 SW Jefferson Way
Corvallis
OR
97331
hjaweb@fsl.orst.edu
http://andrewsforest.oregonstate.edu/
Mark
E.
Harmon
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 737-8455
(978) 724-0045 ext 223
mark.harmon@oregonstate.edu
http://fes.forestry.oregonstate.edu/people?path=people/harmon-mark
http://orcid.org/0000-0002-4195-8288
Andrews Forest LTER Site
Forest Ecosystems and Society Department in Forestry
Oregon State University
201K Richardson Hall
Corvallis
OR
97331-5752
(541) 737-8480
lterweb@fsl.orst.edu
http://andrewsforest.oregonstate.edu/
Field Methods - TD017
Source Areas:
The logs used in the establishment of this experiment were taken from four locations in the Blue River Ranger District (Figure 1). Western hemlock logs were taken from subcanopy trees felled between June 5-7 near or within the Upper Lookout Creek study site. Age of the trees felled were in greater than 100 yrs and all trees were in suppressed and intermediate canopy classes. The forest at this site old-growth Douglas- fir, although salvage operations had occured in the past.
Douglas-fir logs were removed from a mature forest growing adjacent to the rock quarry on Forest Service Road No. 15-130. Trees were felled on June 10 and June 18. Most of the felled trees were in the suppressed and intermediate crown classes, although two trees were codominant. One tree was being attacked by bark beetles, but the foliage was green (logs 71, 72, 73). The age of trees felled was 130 yrs.
Red alder was removed from two sites off of the H.J. Andrews Experimental Forest. Thirty-eight logs were removed from the North Quartz Creek site which was adjacent to Forest Service Road No. 15-126. Felling of these trees started June 9 and was completed on June 13. Tree age was generally less than 30 yrs old and canopy class was dominant to codominant. The forest was a successional riparian type; dominated by red alder. The second source area for red alder was from Cougar Creek near the maintenance storage area along Forest Service Road No. 19-411. Felling at this site occurred on June 19. Trees in dominant to codominant canopy classes were used and tree age was less than 30 yrs. As at Quartz Creek the forest was a successional riparian type dominated by red alder.
Transport of Logs to Study Site:
Logs were moved from source areas to the study site by a number of processes. Western hemlock logs were carried to the study site by a crew of 6-8 using rope timber carriers. Red alder and Douglas-fir logs were transported to the study site in pick-up trucks. At the Quartz Creek site, red alder logs were moved From the stream to the road using a slack-line system.
Placement of Logs:
Logs on the upland site were placed using a crew of 6-8 workers with rope timber carriers on June 17 and June 20. All but 8 of the logs were placed on June 17. Thirty positions were flagged at 10 m intervals along a "cat-trail" that ran through the was placed in a line perpendicular to the road. The location of each log with respect to the road (i.e., nearest road, middle, farthest from road) was randomly selected. Logs were placed as they "fell" so that logs may have been suspended by underlying logs.
Logs were placed in the stream site by a combination of man-power and a slack-line system driven by an electric winch. Stream placement ( occurred on June 21, 24, and 25. Ninety logs were added to the stream over a 150 m mapped reach Prior to placement the location and orientation of logs was marked with colored flags in the stream channel. Logs were moved to the flag and placed so that the center of each log lay over the flag. In order to speed log location and placement and to spread the logs out over the stream reach, they were systematically spaced. Six logs, two of each species, were added to each 10 m segment. The order of species within any 5 m segment was random. Within each 10 m segment the position of the log with respect to the stream channel was randomly chosen. Two of the logs in each 10 m reach were placed in the zone of current flow, two were placed half-in the water and two were placed between the current stream level and that of winter flow. Orientation with respect to stream flow was chosen randomly for each log and four orientations were used. Angle to the current was ( either 0, 45, 90, or 135 degrees. After placement, log location was noted on the map of the stream reach.
Map Preparation:
Maps of both the stream and upland study sites were prepared. In the case of the upland site a tape and compass were used to measure the location of the tributary stream, cat road, and log locations relative to Forest Service Road No. 1506. Louis Stubecki and James Westman surveyed the upland map.
Preparation of the stream map was more complex than the upland map. Randy Wildman supervised the mapping of a 300 m stream reach. The upper 150 m section was used to place the logs, while the lower 150 m was mapped in order to track log movement. A compass line was surveyed down the study stream reach and white PVC posts were placed on the stream banks at 10 m intervals. At 1 m intervals the present flow and winter flow was measured with a staff rod held perpendicular to the compass line. Location of rocks larger than 1 m in diameter, logs larger than 15 cm diameter and 1.5 m long, trees and snags in or adjacent to the stream channel and bedrock exposures was measured with the staff rod and sketched onto the map. Finally, the location and orientation of the experimental logs was added to the map immediately following log placement.
Log Descriptions:
Before placement, each log was tagged and measured to determine exterior dimensions (see format 1). Each log was tagged with four tags; two tags on each end of the logs. The diameter at each end of each log was measured with a diameter tape to the nearest 0.1 cm. Mean log length was measured to the nearest 1 cm after end cross-sections had been removed. After placement bark cover was estimated to the nearest percent. Only zones with sapwood showing were considered bark free.
In subsequent samplings of decayed logs the bark cover was estimated and the diameter and distance from the large end of the cross-section that were removed was recorded.
Sampling of Cross-sections:
For the undecayed logs cross-sections 3 cm thick were removed from both ends of each log with a chainsaw. For red alder and Douglas-fir logs, cross-sections were removed within a few hours of tree felling. Logs of western hemlock were sampled from a few hours after felling to three days after felling. This was a period of wet weather so drying during this period of storage was probably minimal. Before the cross-sections were removed, the outer 5-10 cm of each end of the log was trimmed away so a clean, undried section of log could be sampled. All cross-sections were sealed in plastic bags and those not processed within 24 hours were stored under refrigeration.
For the decayed logs 6 cross-sections were removed with a chainsaw systematically along the length of each log. The position and diameter of each of these cross-sections was recorded. In addition the end diameters were remeasured. In 1987 the large end diameter was measured, and 1989 & 1991 the small end diameter was measured. After this time both ends were measured in the field. For the 1987, 1989, and 1991 years, the missing diameter was estimated from the original diameter and the degree of bark loss. Tha is if all the bark was lost this was subtracted from the original diameter.
For undecayed logs , cross-sections were sampled to determine the fractional volume, moisture content, and density of each substrate. Fractional volume of each of four substrates (i.e., heartwood, sapwood, inner bark and outer bark) was calculated from the mean radial thickness of each substrate. Thickness was measured to the nearest mm. Heartwood and sapwood radial thickness was determined by measuring along the long and short axis of the cross-sections. Bark thickness was measured for 1-4 locations on each cross-section depending upon the variation in thickness observed. The methods used to distinguish substrates for the three species differed. In the case of Douglas-fir all four substrates were quite distinctive and easily separated. The pH indicator alazarin-red S was used to distinguish heartwood from sapwood. When applied to Douglas-fir sapwood the indicator turns red, whereas on heartwood the indicator turns yellow. The heartwood-sapwood boundary of western hemlock ws more difficult to determine than for Douglas-fir. After examining many cross-sections, we determined that the sapwood of western hemlock was slightly darker than the heartwood. This was especially apparent when the cross-section was "split open". The darker coloration was caused by the higher moisture content of the sapwood. In the case of red alder there was no way to reliably separate heartwood from sapwood. Therefore, all wood was considered sapwood for this species.
The volume of each substrate was calculated from the radial measurements from each end and log lengths by assuming logs were frustrums of cones. Inner and outer bark volumes were adjusted to reflect losses prior to placement. Fractional volume was calculated using the total volume based on radial measurements. This volume was slightly lower than that estimated from taped diameter measurements.
Photographs were taken to document changes in the cross-sections as they began to decay. These have not been digitized as of 1991.
Cross-sections were dissected to determine moisture and density. The mean exterior dimensions of these samples were measured to the nearest mm in order to calculate volume. Pieces of sapwood of Douglas-fir and western hemlock, and inner bark and outer bark of all three species were assumed to be rectangular parallelepipeds and volume was calculated from the Comparison to volumes measured using water displacement indicate these volumes estimates were accurate and unbiased. After measurement, the outer bark and inner bark were separated using a chisel. The heartwood of Douglas-fir and western hemlock, and the sapwood of red alder was cut in triangular pieces. The volume of triangular shaped pieces was calculated using Hero's formula:
A = [s(s-a)(s-b)(s-c)^0.5
where A is the area, a, b, and c are the lengths of the three sides and
s=(a+b+c)/2
The volume, V, was therefore:
V = Ad
where d is the thickness.
Based on susequent studies, it appears that Hero's formula underestimated the volume of triangular pieces by 24.7 %. The calculated volume of triangular pieces was therefore multiplied by 1.247 to correct for this bias. Starting in 1987, the volume of triangular pieces was estimated using a formula for a sector of a circle. This formula did not have the same bias as the Hero formula. The exact formula used was: A=S/360*pi*R^2 where S is the angle of the sector in degrees, and R is the mean radial lenght of the sector.
In 1985 wet weight was measured to the nearest 1 g on an electronic, digital scale. Starting in 1987, wet weight was recorded to the nearest 0.01 g. The 1985 samples were air dried for 3-5 weeks and then oven dried for 4 days at 55 degrees C. Samples were allowed to cool to room temperature and weighed to the nearest 0.01 g on an electronic digital scale. The based on a subsampling of 95 samples that were redried and weighed just after removal from the oven, the moisture content at this times was 2.5%. The initial density and moisture content was adjusted in the TD173.dat file to remove the effect of this slight increase in moisture content.
Samples measured in 1987 and after were dried at 55 degrees C for 5-7 days immediately following wet weight determination. Oven dry weights were measured immediately following removal from the oven.
Total mass and fractional mass were calculated using substrate volumes and the mean density of substrates for each log. In the case of red alder, outer and inner bark were combined because the thickness of inner bark was not measured accurately enough (it was often less than 1 mm thick). Subsequent analysis of the Douglas-fir and hemlock bark densities indicates that thickness was not measured accurately. In future analysis it may be best to combine outer and inner bark results.
<para>The elevation of the site is approximately 2500 ft 762 m). The upland site is situated on a gently sloping (<10% slope) bench that is 20 m above Lookout Creek. The stream site is within the "active" channel or zone exposed to annual high flows. The channel gradient at the point of log placement is 7 to 10% and the general downstream direction is west. Much of the reach 50 m or more below the easternmost portion of the reach is bordered by terraces formed by the 1964 flood. Vegetation on these areas consists of tree seedlings <2 m tall, low shrubs and herbs. Approximately 50 m from the easternmost portion of the reach there is a large log jam that completely crosses the channel. Another log jam that partially crosses the channel occurs 140 m from the easternmost portion of the reach. </para>
<para>
Both upland site and the stream reach have old- growth Douglas-fir/western hemlock forest, although the stream reach has a larger component of western red cedar than the upland site. The habitat type of the upland site is Silver fir/ Alaskan ( huckleberry/ bunchberry (Abies amabilis/ Vaccinium alaskense/ Cornus canadensis) (Dyrness et al. 1974, Hemstrom et al. 1982). Both sites have had some salvage operations although the extent of salvage in the stream channel appears to be minor. Salvage 1967-68 and 1979-80.
</para>
<para>Climatic conditions have not been determined at the site. However, precipitation at the nearby Earthflow site for 1979-86 was 205 cm. Thermograph data from Upper Lookout Creek had a mean annual air temperature of 5.5 C, with minimum and maximum values of -7.1 and 28.9 C, respectively.<para> <para>Sampling frequency: incrementally</para>
This experiment was designed so that the decline in log density, volume and dry mass over time could be compared between log species and stream and upland sites using analysis of covariance. A total of 180 logs were used in the experiment. Thirty logs of each of three species (i.e., red alder, Douglas-fir, and western hemlock) were added to each site (i.e., stream versus upland). Periodically a subsample of logs will be removed from each site and log volume, mass, and bark cover will be measured. In addition, each removed log will be thoroughly dissected to determine the volume of decay and insect galleries and the fractional volume of the substrates remaining. Samples of each substrate will be taken in order to estimate the substrate density, moisture and nutrient content. Three logs of each species will be removed from each site at each sample time. The first sample will be removed after 2 yrs of decay and then at 4 yr intervals until 32 yrs after the initiation of the experiment.
In addition to examining the decay of logs, their movement downstream will be followed. The exact nature of the statistical analysis used for this aspect of the study has not been determined.
Upper Lookout Creek
-122.16810500
-122.12601600
44.23402900
44.22757500
998
998
meter
Long-Term Ecological Research
Sherri
L.
Johnson
US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way
Corvallis
OR
97331
USA
541-758-7771
sherri.johnson2@usda.gov
sherri.johnson@oregonstate.edu
https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
Principal Investigator
Julia
A.
Jones
Oregon State University;Department of Geosciences; Wilkinson Hall 104
Corvallis
OR
97331-5506
USA
(541) 737-1224
Julia.Jones@oregonstate.edu
geojulia@comcast.net
http://ceoas.oregonstate.edu/profile/jones/
http://orcid.org/0000-0001-9429-8925
Principal Investigator
Matthew
G
Betts
Department of Forest Ecosystems and Society; 201E Richardson Hall; College of Forestry; Oregon State University
Corvallis
OR
97331
(541) 737-3841
matt.betts@oregonstate.edu
http://www.fsl.orst.edu/flel/index.htm
Principal Investigator
Michael
P.
Nelson
Department of Forest Ecosystems and Society; 201K Richarson Hall; College of Forestry; Oregon State University
Corvallis
OR
97331
541-737-9221
mpnelson@oregonstate.edu
http://www.michaelpnelson.com
http://orcid.org/0000-0001-6917-4752
Principal Investigator
David
Bell
david.bell@usda.gov
david.bell@oregonstate.edu
https://lemma.forestry.oregonstate.edu/about/david-bell
Principal Investigator
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.
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
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.
1
TD01701
Log Descriptions Including Length, Diameters, Bark Cover:
TD01701.csv
28795
6000f20239012898c2fa8451fec62524
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=TD01701_v3.csv
1985-06-19
2015-06-12
DBCODE
FSDB Database code
char(5)
FSDB Database code
ENTITY
Entity number
numeric(1,0)
number
1.000000
natural
1.0000
1.0000
STUDYID
Study area id
char(3)
ULC
Upper Lookout Creek
YEAR
Year of observation
numeric(4,0)
number
1.000000
integer
1985.0000
2015.0000
NUMBER
Log number
numeric(3,0)
number
1.000000
integer
0.0000
280.0000
SPECIES
Species of log
char(4)
ALRU
Alnus rubra
PSME
Pseudotsuga menziesii
TSHE
Tsuga heterophylla
LOCATION
Location of log, stream = a, land = t
char(1)
T
Terrestrial or upland site
A
Aquatic or stream site
POSITION
Indicates where log was found or placed. for stream the numbers indicate the 10-m section log occurred, 1=1-10,2-10-20, etc
char(3)
Indicates where log was found or placed. for stream the numbers indicate the 10-m section log occurred, 1=1-10,2-10-20, etc
LENGTH
Length of log
numeric(3,0)
centimeters
1.000000
integer
150.0000
270.0000
BARKCOVER
Portion of log covered by bark, includes inner and outer bark
numeric(3,0)
percent
5.000000
integer
0.0000
100.0000
X0
The point where diameter measurement was taken for the large end of the log
numeric(3,0)
centimeters
1.000000
integer
0.0000
0.0000
DM0
Diameter measurement of the large end of the log
numeric(3,0)
millimeters
2.000000
integer
109.0000
330.0000
X1
The point where first cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
10.0000
53.0000
DM1
Diameter measurement of the first cross-section
numeric(3,0)
millimeters
2.000000
integer
109.0000
312.0000
X2
Point where second cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
40.0000
94.0000
DM2
Diamter measurement of the second cross-section
numeric(3,0)
millimeters
2.000000
integer
87.0000
308.0000
X3
The point where third cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
65.0000
140.0000
DM3
Diameter measurement of the third cross-section
numeric(3,0)
millimeters
2.000000
integer
17.0000
306.0000
X4
The point where fourth cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
91.0000
221.0000
DM4
Diameter measurement of the fourth cross-section
numeric(3,0)
millimeters
2.000000
integer
25.0000
303.0000
X5
The point where fifth cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
120.0000
255.0000
DM5
Diameter measurement of the fifth cross-section
numeric(3,0)
millimeters
2.000000
integer
0.0000
303.0000
X6
The point where the sixth cross-section was removed
numeric(3,0)
centimeters
1.000000
integer
147.0000
262.0000
DM6
Diameter measurement of the sixth cross-section
numeric(3,0)
millimeters
2.000000
integer
0.0000
298.0000
X7
Position of the small end of the log, should equal the total length
numeric(3,0)
centimeters
1.000000
integer
150.0000
270.0000
DM7
Diameter at the small end of the log
numeric(3,0)
millimeters
2.000000
integer
0.0000
318.0000
SAMPLEDATE
Date of observation
datetime
YYYY-MM-DD
6/19/1985 12:00:00 AM
11/10/2015 12:00:00 AM
PRIMARY
TD01701.NUMBER
TD01701.YEAR
NOTNULL
TD01701.LOCATION
TD01701.STUDYID
TD01701.DBCODE
TD01701.SPECIES
TD01701.BARKCOVER
TD01701.ENTITY
TD01701.DM0
TD01701.DM7
TD01701.LENGTH
TD01701.NUMBER
TD01701.X0
TD01701.X7
TD01701.YEAR
TD01701.SAMPLEDATE
316
2
TD01702
Radial Thickness Of Tissue Types:
TD01702.csv
18962
2762296ae24c6c8b3292b8c2e1ce768a
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=TD01702_v2.csv
1985-06-11
1985-06-20
DBCODE
FSDB Database code
char(5)
FSDB Database code
ENTITY
Entity number
numeric(1,0)
number
1.000000
natural
2.0000
2.0000
STUDYID
Study area id
char(3)
ULC
Upper Lookout Creek
YEAR
Year of observation
numeric(4,0)
number
1.000000
integer
1985.0000
1985.0000
NUMBER
Log number
numeric(3,0)
number
1.000000
integer
1.0000
280.0000
END_REM
The end of log cross-section was removed, 1=large end, 2=small end
char(1)
2
Small end
1
Large end
HWT
Radial thickness of heartwood
numeric(4,1)
centimeters
1.000000
real
0.0000
131.0000
SWT
Radial thickness of softwood
numeric(4,1)
centimeters
1.000000
real
4.0000
153.0000
IBT
Radial thickness of inner bark
numeric(4,1)
centimeters
1.000000
real
1.0000
7.0000
OBT
Radial thickness of outer bark
numeric(4,1)
centimeters
1.000000
real
1.0000
18.0000
SAMPLEDATE
Date of observation
datetime
YYYY-MM-DD
6/11/1985 12:00:00 AM
6/20/1985 12:00:00 AM
PRIMARY
TD01702.END_REM
TD01702.NUMBER
TD01702.YEAR
NOTNULL
TD01702.END_REM
TD01702.STUDYID
TD01702.DBCODE
TD01702.ENTITY
TD01702.HWT
TD01702.IBT
TD01702.NUMBER
TD01702.OBT
TD01702.SWT
TD01702.YEAR
TD01702.SAMPLEDATE
360
3
TD01703
Sample Dimensions, Weights, Density, and Moisture Contents:
TD01703.csv
287149
b0722b9e51823efada2ed96151f0c07d
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=TD01703_v3.csv
1985-06-19
2015-06-16
DBCODE
FSDB Database code
char(5)
FSDB Database code
ENTITY
Entity number
numeric(1,0)
number
1.000000
natural
3.0000
3.0000
STUDYID
Study area id
char(3)
ULC
Upper Lookout Creek
YEAR
Year of observation
numeric(4,0)
number
1.000000
integer
1985.0000
2015.0000
NUMBER
Log number
numeric(3,0)
number
1.000000
integer
0.0000
280.0000
POS
Position of sample (consecutive alpha codes for sample sections) 2=small end
char(1)
D
Fourth sample from decayed log
E
Fifth sample from decayed log
F
Sixth sample from decayed log , nearest the small end
C
Third sample from decayed log
1
Initial sample from large end of log
A
First sample from decayed nearest large end of log
B
Second sample from decayed nearest large end of log
2
Initial sample from small end of log
SUBSTR
Code for type of substrate sampled
char(2)
OB
Outer bark
IB
Inner bark
HW
Heartwood
SW
Sapwood
W
Undifferentiated wood; unable to distinguish SW from HW
VOLFORM
Code for equation to be used in calculating the volume from variables d1, d2 d3
char(1)
5
Sector of circle: v=d1*d1*(d2/360)*d3.
3
Frustrum of cone: d1=large end diam, d2=small end diam, d3=length, v=pi/3*d3*(d1*d1/4 + d1*d2/2 + d2*d2/4).
1
Cylinder: d1=diameter, d2=length, v=pi/4*d1*d1*d2.
2
Rectangular paralleloid: d1,d2,d3 are lentghs of sides, v=d1*d2*d3.
4
Triangular piece: d1=log side of triangle,d2 = base of triangle, d3=thichness of piece, v=a*d3
6
Donut shape; circle with hollow
D1
Length in dimension 1
numeric(5,1)
millimeters
1.000000
real
1.0000
810.0000
D2
Length in dimension 2
numeric(5,1)
millimeters
1.000000
real
1.0000
435.0000
D3
Length in dimension 3
numeric(5,1)
millimeters
1.000000
real
0.4000
417.0000
D4
Length in dimension 4, used only when volform = 4
numeric(3,0)
millimeters
1.000000
real
43.0000
161.0000
WETWTD
Fresh weight of total sample
numeric(6,0)
grams
0.010000
real
37.0000
226450.0000
DRYWTD
Oven-dry weight of total sample
numeric(6,0)
grams
0.010000
real
4.0000
121229.0000
WETWTM
Wet weight of moisture content sample (subsample of total sample)
numeric(5,0)
grams
1
real
504.0000
26300.0000
DRYWTM
Dry weight of moisture content sample (subsample of total sample)
numeric(5,0)
grams
1
real
288.0000
9890.0000
WVOL
Volume from water displacement
numeric(3,0)
milliliters
1.000000
real
20.0000
600.0000
CVOL
Volume calculated from measurement
numeric(6,0)
number
1.000000
real
480.0000
925037.0000
DEN
Density of sample
numeric(5,0)
milliliters
1.000000
real
1.0000
1462.0000
MC
Moisture content of sample
numeric(3,0)
percent
1.000000
real
11.0000
825.0000
SAMPLEDATE
Date of observation
datetime
YYYY-MM-DD
6/19/1985 12:00:00 AM
6/16/2015 12:00:00 AM
PRIMARY
TD01703.POS
TD01703.SUBSTR
TD01703.NUMBER
TD01703.YEAR
NOTNULL
TD01703.POS
TD01703.STUDYID
TD01703.SUBSTR
TD01703.VOLFORM
TD01703.DBCODE
TD01703.ENTITY
TD01703.D1
TD01703.D2
TD01703.NUMBER
TD01703.YEAR
TD01703.SAMPLEDATE
3457
4
TD01704
Log Volumes, Tissue Volumes, Total Mass, Proportional Mass:
TD01704.csv
31779
64c7f9f92173a99b49d93e3215a1c671
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=TD01704_v3.csv
1985-06-19
2015-06-12
DBCODE
FSDB Database code
char(5)
FSDB Database code
ENTITY
Entity number
numeric(1,0)
number
1.000000
natural
4.0000
4.0000
STUDYID
Study area id
char(3)
ULC
Upper Lookout Creek
YEAR
Year of observation
numeric(4,0)
number
1.000000
integer
1985.0000
2015.0000
NUMBER
Log number
numeric(3,0)
number
1.000000
integer
1.0000
280.0000
MAXVOL
Maximum volume of log based on exterior measurements on cardtype 1. assume shape is frustrum of cone.
numeric(5,0)
cubic meters
0.000000
real
884.0000
21192.0000
TVOL
Total vol based on length on cardtype 1 and radial measure mentson cardtype 2. incl bark loss. shape is frustrum of cone.
numeric(5,0)
cubic meters
1.000000
real
3833.0000
19013.0000
FVH
Fractional volume of heartwood (not calculated for alru). shape is frustrum of cone for this and next 3 variables
numeric(3,0)
percent
1.000000
integer
0.0000
87.0000
FVI
Fractional volume of inner bark (not calc for alru)
numeric(3,0)
percent
1.000000
integer
0.0000
11.0000
FVO
Fractioanl volume of outer bark (for alru this includes in ner bark)
numeric(3,0)
percent
1.000000
integer
0.0000
21.0000
FVS
Fractioanl volume of sapwood
numeric(3,0)
percent
1.000000
integer
8.0000
100.0000
TMASS
Total dry mass of log.
numeric(6,0)
grams
1.000000
integer
474.0000
99041.0000
FMH
Fractional mass of heartwood. fmh = (fvh*tvol*denh)/tmass.
numeric(3,0)
percent
1.000000
integer
0.0000
92.0000
FMI
Fractional mass of inner bark. not calculated for alru. see fmh for formula.
numeric(3,0)
percent
1.000000
integer
0.0000
12.0000
FMO
Fractional mass of outer bark. see fmh for formula. for al ru this includes inner bark.
numeric(3,0)
percent
1.000000
integer
0.0000
100.0000
FMS
Fractional mass of sapwood. see fmh for formula.
numeric(3,0)
percent
1.000000
integer
0.0000
100.0000
DENH
Mean density (n=2) of heartwood for log.
numeric(5,3)
grams per milliliter
0.001000
real
0.0000
0.6350
DENI
Mean density (n=2) of inner bark (not calculated for alru)
numeric(5,3)
grams per milliliter
0.001000
real
0.0000
0.7000
DENO
Mean density (n=2) of outer bark. for alru inner and outer bark combined.
numeric(5,3)
grams per milliliter
0.001000
real
0.0000
0.9060
DENS
Mean density (n=2) of sapwood.
numeric(5,3)
grams per milliliter
0.001000
real
0.0000
0.6120
MCH
Mean moisture content of sapwood (n=2). not calculated for alru.
numeric(3,0)
percent
1.000000
integer
0.0000
332.0000
MCI
Mean moisture content of inner bark (n=2). not calculated for alru.
numeric(3,0)
percent
1.000000
integer
0.0000
495.0000
MCO
Mean moisture content of outer bark (n=2). for alru inner and outer bark combined.
numeric(3,0)
percent
1.000000
integer
0.0000
467.0000
MCS
Mean moisture content fo sapwood (n=2).
numeric(3,0)
percent
1.000000
integer
0.0000
525.0000
SAMPLEDATE
Date of observation
datetime
YYYY-MM-DD
6/19/1985 12:00:00 AM
11/10/2015 12:00:00 AM
PRIMARY
TD01704.NUMBER
TD01704.YEAR
NOTNULL
TD01704.STUDYID
TD01704.DBCODE
TD01704.ENTITY
TD01704.DENS
TD01704.FMS
TD01704.FVS
TD01704.MAXVOL
TD01704.MCS
TD01704.NUMBER
TD01704.TMASS
TD01704.TVOL
TD01704.YEAR
TD01704.SAMPLEDATE
316
centimeters; .01 meters
millimeters; .001 meters
milliliters; 1/1000 of a liter
grams per milliliter
percent; a number
grams; 0.001 kilogram
cubic meters
dimensionless number, i.e., ratio, count