Walker Branch Watershed Vegetation Inventory, 1967-1997

This data set has been superseded by the 1967-2006 update.

The updated vegetation inventory data set includes results of the 2006 survey and updates to previous results based on the latest survey. The 1967-2006 data set completely supersedes the 1967-1997 data set. If you downloaded the 1967-1997 data set before July 15, 2010 you should download the 1967-2006 version at your earliest convenience. This note was added July 14, 2010 by L.A. Hook.

New Data Set:
Huston, M.A., D.W. Johnson, D.E. Todd, J.W. Curlin, and F.W. Harris. 2005. Walker Branch Watershed Vegetation Inventory, 1967-2006. Data set. Available on-line [http://mercury.ornl.gov/EDORA/] from Environmental Data for the Oak Ridge Area, Oak Ridge, Tennessee, U.S.A.

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The original objectives of the long-term vegetation survey of Walker Branch Watershed in eastern Tennessee (WBW; Curlin and Nelson 1968) was to quantify the standing crop of vegetation through time including measures of tree/plant size distribution, species composition, above-ground biomass, and chemical balance. Field studies of permanent vegetation plots using one sample design were conducted over a 30-year period (1967 to 1997), and observations continue with funding from the U.S. Department of Energy�s Program for Ecosystem Research.* This data set consists of long-term measurements of diameter at breast height (DBH) determined on randomly located permanent inventory plots within the 4 different vegetation types located on WBW in 1967. In addition, the lignin to nitrogen content in leaves (g lignin / g N of leaf tissue) for species present in WBW was obtained from the literature.

More information can be found at: http://walkerbranch.ornl.gov/

* Funding for long-term data collection efforts on Walker Branch was provided by the U.S. Department of Energy (DOE), Office of Science, Biological and Environmental Research (BER), as a part of the Program for Ecosystem Research (PER).