Log leachates from the Andrews Experimental Forest, 1986-1992

  • Creator(s): Mark E. Harmon
  • PI(s): Mark E. Harmon
  • Originator(s): Mark E. Harmon
  • Other researcher(s): Jay M. Sexton
  • Dates of data collection: Sep 1 1986 - Dec 31 1992
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • Last update: Feb 10 2002 (Version 2)
<Citation>     <Acknowledgement>     <Disclaimer>    
Harmon, M. 2002. Log leachates from the Andrews Experimental Forest, 1986-1992. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-11.
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.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
This study is part of the long-term log decay study (200 years). The experiments are being conducted at six sites located within intact old-growth Douglas-fir-western hemlock forests. This study tests the effect of log species and decomposition on the release of nutrients and carbon via leaching. This experiment is designed to investigate flow pathway through these logs; that is, throughfall, run-off from the top, and leachate from the bottom. Water collectors were installed on each log to collect the sample to be analyzed for various nitrogen and carbon content.

Study Description Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Water Flow Volumes METADATADATA
2Bulk Nitrogen and DOC METADATADATA
4Nitrogen Resin Collectors METADATADATA
5Cumulative Flows METADATADATA

 Respiration patterns of logs in the Pacific Northwest, 1986-1996 (TD020)
 Nitrogen fixation and respiration potential of conifer logs at Andrews Experimental Forest, 1987 to 2006 (TD018)
 Long-term log decay experiments at the Andrews Experimental Forest, 1985 to 2185 (TD014)

 Griffiths, Robert P., Harmon, Mark E., Caldwell, Bruce A., Carpenter, Steven E. 1993, Acetylene reduction in conifer logs during early stages of decomposition (Pub. No: 1044)
 Harmon, Mark E. 1992, Long-term experiments on log decomposition at the H.J. Andrews Experimental Forest (Pub. No: 1045)
 Schowalter, T. D., Caldwell, B. A., Carpenter, S. E., Griffiths, R. P., Harmon, M. E., Ingham, E. R., Kelsey, R. G., Lattin, J. D., Moldenke, A. R. 1992, Decomposition of fallen trees: effects of initial conditions and heterotrophic colonization rates (Pub. No: 1122)
 Zhong, H., Schowalter, T. D. 1989, Conifer bole utilization by wood-boring beetles in western Oregon (Pub. No: 1013)
 Kelsey, Rick G., Harmon, Mark E. 1989, Distribution and variation of extractable logs of four conifers after one year in the ground (Pub. No: 1016)
 Carpenter, Steven E., Harmon, Mark E., Ingham, Elaine R., Kelsey, Rick G., Lattin, John D., Schowalter, Timothy D. 1988, Early patterns of heterotroph activity in conifer logs (Pub. No: 864)
 Carpenter, Steven E. 1988, Ambrodiscus, a new genus of inoperculate discomycetes from ambrosia beetle galleries (Pub. No: 2739)
 Zhong, He 1988, Host Selection and Wood Channelization by Beetles in Conifer Logs in Western Oregon (Pub. No: 5067)