uid=AND,o=lter,dc=ecoinformatics,dc=org all public read SP014 Robert P. Griffiths

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

(541) 737-6559 bbgriff@peak.org griff@for.orst.edu Robert P. Griffiths

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

(541) 737-6559 bbgriff@peak.org griff@for.orst.edu Principal Investigator Elizabeth W. Sulzman

Dept. of Crop and Soil Science;3017 ALS Bldg;Oregon State University Corvallis OR 97331-7306 USA

541-737-8936 Other Researcher Alan K. Swanson Other Researcher Robert P. Griffiths

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

(541) 737-6559 bbgriff@peak.org griff@for.orst.edu Abstractor Robert P. Griffiths

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

(541) 737-6559 bbgriff@peak.org griff@for.orst.edu Creator 2011-09-14 The overall objective of this study is to model CO2 emissions from forest soils of the H. J. Andrews Experimental Forest. The data to develop this model was obtained by measuring forest floor respiration rates in permanent chambers located along transects at permanent gas flux study sites. meteorology soil respiration respiration inorganic nutrients organic matter forest floor old growth forests LTER controlled vocabulary Long-Term Ecological Research (LTER) Andrews Experimental Forest site thesaurus inorganic nutrients organic matter LTER core research areas Related FilesTitle: Site DescriptionsDescription: Physical characteristics of sitesURL: https://andrewsforest.oregonstate.edu/sites/default/files/lter/data/studies/sp004/sp004_sitedescription.pdf 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=SP014 1994-11-01 1996-11-01

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

notPlanned Original metadata creation. Version1 1999-04-13 Metadata restructured and moved into SQLServer metadata database LTERMETA. Data moved into SQLServer database FSDBDATA. Version2 2002-02-27 Restructured year to datetime field and fixed dates. Version5 2007-08-30 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/ Robert P. Griffiths

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

(541) 737-6559 bbgriff@peak.org griff@for.orst.edu 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 - SP014 There are 10 plots within each of the twenty sites. These consist of locations along a 50 meter transect 5 meters apart where permanent gas flux chambers were lcoated and soil samples taken. The depth of the chambers varied where there was a slope, The hight of the chambers above ground was about 20 cm. For each chamber, the average of the high and low sides were used to calculate the average high of the chamber wall above the forest floor surface. This was used to calcuate the volume of the headspace for each individual chamber. The inside diameter of the chambers was 27 cm. To insure an effective seal, groves were machined into the walls of the chambers to accomedate an "O" ring. The chambers were sealed with clear plexiglass. All chambers were cleared of all vegetation before respiration measurements were made. Soil respiration was measured using indicating soda lime with a mesh of 6/12 (Fisher #S201-3). The increase in weight is directly proportional to the amount of CO2 adsorbed during the incubation period. Thirty grams of soda lime was added to 8 oz glass jars fitted with gastight metal lids. They were heated uncovered for 8 hr at 100°C to remove moisture. At time 0 the jars were placed on metal mesh stands within a incubation chambers which were permanently installed in the ground with the edges buried to a depth of 10 cm. Twenty four hours later, the lids were placed back on the jars and returned to the laboratory where they were again dried (with lid off) at 100°C for 8 hr. At each site, there was one control jar used to determine background CO2 levels and the uptake of CO2 during drying (jar was placed in a sealed chamber sealed on both ends). Bulk density measurements were made in soils adjacent to the chambers as indicated. Soil moisture was measured in two ways; (1) either gravimeterically from bulk density cores or (2) using a Time-Domain Reflectometer (TDR). The TDR used was a Tektronix model 1502B cable tester (Textronix, Beaverton, OR). The manufacture's recommended protocol was followed. http://andrewsforest.oregonstate.edu/data/studies/sp004/sp004_sitedescription.pdf Sampling frequency: monthly These sites were selected to give a wide representation of different microclimates and vegetation types found at the HJA. The microclimate sites were selected along a rough N/S gradient from the top of a ridge to the North to another ridge to the South. Another set was selected along an roughly E/W gradient which gave representative sites of different elevations and aspects including sites that were hot and dry and those that are typically wet and cold. Also included were sites near streams that experience cooling. The vegetation sites included clearcut sites, and regenerated sites of different age classes. In addition, we included a Sitka alder and a broad-leave maple site. Monthly measurements of field respiration, temperature, percent moisture, moisture by volume, field respiration rate in permenant gas exchange chambers and bulk density. This study was also designed to provide continued monitoring of soil respiration rates at these sites which were initiated in the summer of 1992. In the earlier studies, permanent chambers had not been installed and we using temporary incubation chambers installed at each sampling. The permanent chambers were installed in the summer of 1994 and used throughout this study. Between measurements, both covers and "O" rings were removed from the chambers. The only disturbance in the chambers during this study was the removal of any vegetation by cutting the stems. Andrews Experimental Forest (HJA) -122.26172200 -122.10084700 44.28196400 44.19770400 1631 1631 meter 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 SP01401 Monthly Forest Floor Respiration: SP01401.csv 146415 129f760555b207601fdda11e9733c2b1 1 \r\n column , " http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=SP01401_v1.csv 1994-11-10 1996-11-10 DBCODE FSDB Database code char(10) SP014 FSDB Database Code SP014 ENTITY Entity number numeric(2,0) number 1.000000 natural 1.0000 1.0000 SITE Permanent trace gas sites char(5) 10C Mid-elevation (south slope) 10V Low-elevation clear-cut; succession study site 11C Riparian area 11V Mid-elevation young stand 12C Mid-elevation clear-cut 12VC Mid-elevation old-growth control for 11v, 12c 1C 1v control + high hot dry mc 1V High hot dry microclimate (mc) 2C North facing 2V North facing clear cut (mid-elevation) 2VC Control for 2v and 3v 3C Valley site near stream (no slope) 3V 15-year-old doug-fir stand 4C Cool-wet high elevation (north slope), control for 6v 4V 35-year-old doug-fir stand 4VC Control for 4v 5C Site similar to 3c but higher 5V Big-leaf maple site 5VC Control for 5v 6C High-moisture site (north facing) 6V Sitka-alder veg site 7C Moisture mid-elevation (north facing veg site) 7V Mid-elevation, north slope, young stand 8C High dry hot site (south facing ridge top) 8V Low-elevation young stand at hq site (same as site ys) 9C Low elevation (north slope) cool moisture 9V Low-elevation clear-cut at hq site (same as site cc) 9VC Low-elevation old-growth at hq site (same as site og) CC Clear-cut at hja headquarters site (same as site 9v) OG Old-growth at hja headquarters site (same as site 9vc) YS Young stand at hja headquarters site (same as site (8v) DATE Date sample was colleted datetime YYYY-MM-DD 1.000000 11/10/1994 12:00:00 AM 11/10/1996 12:00:00 AM SAMPLE Location along transect where sample was taken char(2) Location along transect where sample was taken RESP Respiration rate-control (grams of C per square meter per day) numeric(6,3) grams per square meter per day 0.001000 real -36.7400 127.6100 SOILTEMP Mean of instantaneous soil temperatures taken at the start and end of field numeric(5,1) degrees Celsius 0.100000 real 0.1000 25.3000 P_MOIST Percent moisture (wet-dry/dry)x100 numeric(6,2) percent 0.010000 real 11.0000 264.6000 H2OVOLUM Volume of water per volume of sample numeric(5,3) milliliters per cubic centimeter 0.001000 real 0.0510 1.3270 BULKDENS Bulk density of soils at site-cores taken next to each incubatoin chamber numeric(5,3) grams per cubic centimeter 0.001000 real 0.1270 1.0330 MOISOURC Method of measureing water volume in soils char(1) 0 No method used to measure water volume 1 Water volume measured gravimetrically 2 Water volume measured with a time domain refractometer (tdr) PRIMARY SP01401.DATE SP01401.SAMPLE SP01401.SITE NOTNULL SP01401.DATE SP01401.ENTITY SP01401.MOISOURC SP01401.SAMPLE SP01401.SITE SP01401.DBCODE 2785 grams per cubic centimeter dimensionless number, i.e., ratio, count milliliters per cubic centimeter; also cubic centimeters per cubic centimeter percent; a number grams per square meter per day Degrees Celsius; a common unit of temperature; constantToSI=273.18