Data Set Overview
|Data set||NPP Grassland: Calabozo, Venezuela, 1969-1987, R1|
|Project||Net Primary Productivity (NPP)|
|Time Period||1968-01-01 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.
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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
Project data set list for Net Primary Productivity (NPP).
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|Data File (Granule)||File Size||Dates|
|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|
Files related to this data set have been downloaded on 236 occasions since 2007-12-06, totaling 1362 files.