Data Set Overview
|Data set||NPP Grassland: Dzhanybek, Kazakhstan, 1955-1989, R1|
|Project||Net Primary Productivity (NPP)|
|Time Period||1953-01-01 to 1989-12-31|
This data set provides two data files in text format (.txt). One file contains a long time series of biomass measurements made between 1955 and 1989 on a semi-desert steppe at the Dzhanybek Research Station in Kazakhstan (49.33 N 46.78 E Elevation 20 m). The second file contains monthly and annual climate data for the study site for the period 1953-1989. Peak live biomass measurements were made from 1955 to 1989 (excluding 1976) and additional measurements of above-ground live biomass and dead matter were made seasonally from 1985 to 1989. Averaged over the time series, above-ground live phytomass and standing dead were estimated to be 137 g/m2 and 32 g/m2 (dry matter weight), respectively, while below-ground phytomass dry weight was 1,750 g/m2. ANPP was estimated to be 201 g/m2/yr. BNPP and TNPP were not estimated. 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 1997.
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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|
|dzh_cli.txt||11.8 KB||1953-01-01 - 1989-12-31|
|dzh_npp.txt||3.2 KB||1955-05-15 - 1989-08-08|
Files related to this data set have been downloaded on 299 occasions since 2007-12-06, totaling 1066 files.