Project: NET PRIMARY PRODUCTIVITY (NPP)Project: NET PRIMARY PRODUCTIVITY (NPP)
NPP (net primary production) data from existing field measurements are being compiled for approximately 100 study sites covering several major world ecosystem types. These data are used by global change modelers to develop and validate models of vegetation-soil-atmosphere interactions within the global carbon cycle and to help calibrate remote sensing of vegetation worldwide
Data Set: NPP Temperate Forest: Humboldt Redwoods State Park, California, U.S.A., 1972-2001Data Set: NPP Temperate Forest: Humboldt Redwoods State Park, California, U.S.A., 1972-2001
Productivity of an old stand of coast redwoods in northern California was studied via tree remeasurement (1972-2001) and allometric relationships. Measurements of tree circumference at 1.7 m above ground were made at the beginning and the end of the study. Above-ground net primary production (ANPP) was estimated using a range of specific gravities and several allometric relationships for tree volume. Trees lost to mortality over the study interval were included in the analysis. Reported data include site characteristics, redwood stand descriptors, and measured and calculated biomass and ANPP data.
Detailed Documentation: Data Set Reference Document
Busing, R. T., and T. Fujimori. 2005. NPP Temperate Forest: Humboldt Redwoods State Park, California, U.S.A., 1972-2001. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/803
Data Set Files:Download Data Set Files: (30.9 KBytes in 1 File)
All Data Taken At Latitude: 40.35N, Longitude: 123.00E
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