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NPP Grassland: Calabozo, Venezuela, 1969-1987, R1

Data Set Overview

Data setNPP Grassland: Calabozo, Venezuela, 1969-1987, R1
Release date2013-11-12
ProjectNet Primary Productivity (NPP)
Time Period1968-01-01 to 1987-04-15


This data set contains four ASCII text files for a 260-hectare humid Trachypogon savanna at the Estacion Biologica de Los Llanos, Calabozo, Venezuela (8.93 N, -67.42 W, Elevation 98 m). Two data files contain monthly estimates of above-ground biomass for the period January 1969 to October 1969, one file for each treatment (burned and unburned plots). These files also provide one estimate of below-ground biomass. Another NPP data file contains monthly estimates of above- and below-ground biomass, LAI, and nitrogen content of living and dead leaves and stems and below-ground biomass for an unburned area of the Calabozo savanna for March 1986 to April 1987. The fourth data file contains precipitation and maximum/minimum temperature data from a nearby weather station at Estacion Biologica de Los Llanos (8.88 N, -67.32 W, Elevation 86 m) for the period 1968-1986. Harvest methods were used to estimate above- and below-ground biomass. Total NPP (above- plus below-ground productivity) was estimated at 682 g/m2/yr for unburned and 755 g/m2/yr for burned grassland plots in 1969. Later TNPP estimates (1986/87) for the unburned grassland ranged from 823 to 1,310 g/m2/yr.


Data set reference document


San Jose, J., and R.A. Montes. 2014. NPP Grassland: Calabozo, Venezuela, 1969-1987, R1. ORNL DAAC, Oak Ridge, Tennessee, USA.
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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

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Companion Files

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  • NPP_CLB.pdf

Data Files

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Data File (Granule)File SizeDates
clb3_npp.txt 2.3 KB 1986-03-15 - 1987-04-15
clb_cli.txt 8.7 KB 1968-01-01 - 1986-12-31
clb1_npp.txt 1.4 KB 1969-01-15 - 1969-10-15
clb2_npp.txt 1.4 KB 1969-01-15 - 1969-10-15


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