Skip to main content

DAAC Home > Get Data > Regional/Global > Net Primary Production (NPP) > Data Files

NPP Temperate Forest: Humboldt Redwoods State Park, California, USA, 1972-2001, R1

Data Set Overview

Data setNPP Temperate Forest: Humboldt Redwoods State Park, California, USA, 1972-2001, R1
DOI10.3334/ORNLDAAC/803
Release date2013-09-03
ProjectNet Primary Productivity (NPP)
Time Period1972-01-01 to 2001-12-31

Description

This data set contains site characteristics, stand descriptors, and measured and calculated above-ground biomass, above-ground net primary production (ANPP), and woody detritus input data for an old Sequoia sempervirens stand at Bull Creek in Humboldt Redwoods State Park, California. There is one data file (.csv format) with this data set. Productivity of the Sequoia stand was studied via tree re-measurement (1972 and 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. A 1972 stem map of the stand allowed the investigators to identify and re-measure trees >10 cm in diameter. ANPP was estimated using a range of specific gravities and several allometric relationships for tree volume. Estimation procedures were outlined by Busing and Fujimori (2005). Tree loss to mortality over the study interval was included in the analysis. Estimates of total tree ANPP ranged from 600 to 1,400 g/m2/yr. However, ANPP values in the range of 700-1,000 g/m2/yr were considered to be the most reasonable estimate because of the accuracy of the particular equations, specific gravities, and assumptions used to obtain them (Busing and Fujimori, 2005). Above-ground total tree biomass was extremely high (> 300,000 g/m2). Revision Notes: Only the documentation for this data set has been modified. The data files have been checked for accuracy and are identical to those originally published in 2005.

Documentation

Data set reference document

Citation

Busing, R.T., and T. Fujimori. 2013. NPP Temperate Forest: Humboldt Redwoods State Park, California, USA, 1972-2001, R1. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/803
Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter

See our Data Citations and Acknowledgements policy for more information.

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

Project data set list for Net Primary Productivity (NPP).

Companion Files

Sign In above to download companion files.

  • NPP_REDWOOD.pdf

Data Files

Sign In above to download data set files.

Data File (Granule)File SizeDates
Redwood_NPP.csv 30.9 KB 1972-01-01 - 2001-12-31

Download Statistics

Files related to this data set have been downloaded on 281 occasions since 2007-12-06, totaling 682 files.