TD032

A chronosequence of woody root decomposition in the Pacific Northwest, 1995 to 1997

• Creator(s): Mark E. Harmon
• PI(s): Mark E. Harmon
• Originator(s): Mark E. Harmon
• Other researcher(s): Hua Chen, Jack E. Janisch
• Dates of data collection: Jun 1 1995 - Jun 1 1997
• Data collection status: Study collection is completed and no new collection is planned
• Data access: Online
• Last update: Nov 15 2016 (Version 6)

<Citation>     <Acknowledgement>     <Disclaimer>    

Harmon, M. 2016. A chronosequence of woody root decomposition in the Pacific Northwest, 1995 to 1997. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=TD032. Accessed 2024-05-07.

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.

ABSTRACT:
	Decomposition of woody roots in Sitka spruce (Picea sitchensis (Bong.) Carrière), Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), and ponderosa pine (Pinus ponderosa P. Laws. ex C. Laws.) dominated forests in Oregon, U.S.A. was studied using a chronosequence. Roots of five coniferous species were excavated from stumps with ages up to 46 years old. A structural component-oriented approach may provide a better solution to predicting the long-term woody root decomposition than that provided by initial substrate quality indices. This approach examines the decomposition of different components of woody roots separately to predict whole root decomposition.

Study Description

Taxonomic Hierarchy

Download Study Location Information: (CSV) Ecological Metadata Language: (EML)

ENTITY TITLES:
1	SAMPLE DIMENSIONS, WEIGHTS, AND DENSITIES	METADATA	DATA
2	SAMPLE ASH, NITROGEN, AND ASH-FREE DENSITY	METADATA	DATA
RELATED DATABASES:
	Decomposition of Fine Woody Roots: a Time Series Approach, 1995 to 2006 (TD031)
RELATED PUBLICATIONS:
	Chen, Hua, Hicks, William 2003, High asymbiotic N2 fixation rates in woody roots after six years of decomposition: controls and implications (Pub. No: 3682)
	Chen, Hua, Harmon, Mark E., Griffiths, Robert P. 2001, Decomposition and nitrogen release from decomposing woody roots in coniferous forests of the Pacific Northwest: a chronosequence approach (Pub. No: 2792)
	Chen, Hua, Harmon, Mark E., Griffiths, Robert P., Hicks, William 2000, Effects of temperature and moisture on carbon respired from decomposing woody roots (Pub. No: 2653)
	Chen, Hua 1999, Root decomposition in three coniferous forests: effects of substrate quality, temperature, and moisture (Pub. No: 2619)
	Janisch, Jack E., Harmon, Mark E., Chen, Hua, Fasth, Becky, Sexton, Jay 2005, Decomposition of coarse woody debris originating by clearcutting of an old-growth conifer forest (Pub. No: 4305)