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NPP Grassland: Beacon Hill, U.K., 1972-1993, R1

Data Set Overview

Data setNPP Grassland: Beacon Hill, U.K., 1972-1993, R1
DOI10.3334/ORNLDAAC/204
Release date2013-11-12
ProjectNet Primary Productivity (NPP)
Time Period1969-01-01 to 1993-12-31

Description

This data set contains two ASCII text files, one providing productivity measurements for a chalk grassland on Beacon Hill, West Sussex, U.K. (50.92 N, -0.85 W) and the other containing climate data from a weather station at the former King's College London, Rogate Field Centre, 6 km distant (51.01 N, -0.85 W). Measurements of above-ground live biomass and total dead matter were made by harvesting 0.25-m2 quadrats in the 20 x 20-m study area at eight to ten week intervals from March 1972 to April 1973. Precipitation amount and minimum/maximum temperature were recorded from 1969 through 1993. Above-ground net primary production (ANPP) was estimated by several methods: 332 g/m2/year (annual increase in living biomass, sum of species); 355 g/m2/year (peak or maximum live biomass, plant dry matter weight); 773 g/m2/year (maximum live + dead biomass); 310 g/m2/year (annual increase in living biomass carbon by summing positive increments in biomass); and 691 g/m2/year (annual net production accounting for leaf turnover). The carbon content of ANPP (accounting for leaf turnover) was estimated to be 310 gC/m2/year using a conversion factor of 0.45. Below-ground production was not measured. 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 1998.

Documentation

Data set reference document

Citation

Williamson, P., and J. Pitman. 2014. NPP Grassland: Beacon Hill, U.K., 1972-1993, R1. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/204
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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).

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  • NPP_BCN.pdf

Data Files

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Data File (Granule)File SizeDates
bcn_cli.txt 10.7 KB 1969-01-01 - 1993-12-31
bcn_npp.txt 1.2 KB 1972-03-30 - 1973-04-24

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Publications using this data set

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Files related to this data set have been downloaded on 275 occasions since 2007-12-03, totaling 1047 files.