NPP Grassland: Hays, USA, 1970, R1

Description

This data set contains three ASCII files (.txt format). Two files contain above- and below-ground biomass and productivity data for a mixed prairie grassland, one file for an ungrazed treatment and the other for a moderately grazed treatment. The study site (38.87 N, - 99.38 W, Elevation 714 m) is located in the central Great Plains near the city of Hays, Kansas, about 400-km west of Kansas City. The third file contains monthly and annual climate data for the period 1891-1994 obtained from a weather station (38.87 N, -99.38 W, Elevation 613 m) located at the Hays grassland study site. Dynamics of above-ground living and dead plant biomass were monitored by the harvest technique at roughly 2-week intervals during the growing season of 1970. Total below-ground biomass was sampled at the same intervals by manual coring within the harvested plots to a depth sufficient to include at least 90% of the root mass. Data were collected as part of a coordinated study over 1-3 years at ten grassland sites of the central and western United States, under the US Grassland Biome Project of the International Biological Program (IBP). Annual above-ground net primary production (ANPP) was estimated conservatively by summing peak biomass of individual species. These values were 363 g/m2/year for ungrazed and 372 g/m2/year for grazed grassland plots. Annual below-ground net primary production (BNPP) was estimated as the sum of positive increments in total root biomass (including root crowns); 1,062 g/m2/year for ungrazed and 855 g/m2/year for grazed grassland plots.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DNPP_HYS_208%26ac%3Dtrue
5 https://daac.ornl.gov%2FNPP%2Fguides%2FNPP_HYS.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F208
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FNPP_HYS_208.zip
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fnpp%2Fgrassland%2FNPP_HYS%2Fcomp%2FNPP_HYS.pdf
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Fnpp_logo_square.png
5 https://search.earthdata.nasa.gov/search?q=NPP_HYS_208&ac=true
21 https://doi.org/10.3334/ORNLDAAC/208
57 NPP_HYS_208.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_HYS_208.zip
34 npp_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png
33 NPP_HYS.pdf https://data.ornldaac.earthdata.nasa.gov/public/npp/grassland/NPP_HYS/comp/NPP_HYS.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2752578763-ORNL_CLOUD.iso19115

Tags

  • earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production
  • earth-science-vegetation-biosphere-biomass
  • earth-science-ecological-dynamics-biosphere-ecosystem-functions-biomass-dynamics

Topics

Categories