NPP Tropical Forest: Magdalena Valley, Colombia, 1970-1971, R1

Description

This data set contains two NPP data files and one climate data file (ASCI .txt format). The NPP files contain data for above-ground biomass, litterfall, and nutrient content of above-ground vegetation, organic surface layer, and soils measured during an 18-month period in 1970 and 1971 at two contrasting tropical seasonal evergreen forests in Magdalena Valley, Colombia. The climate record provides mean monthly and annual precipitation (1951-1992) and mean monthly and annual average temperature (1970-1997) from Barranca Bermeja (7.00 N 73.80 W) near the Magdalena Valley sites. One forest stand sits atop a perched water table on a typical valley terrace. It is low in height, basal area (22 m2/ha), and above-ground biomass (18,109 g/m2), but rich in palms with a simple two-layered structure, frequent windthrows and mortality, and few older trees. The contrasting forest stand developed on a lower slope site under more advantageous soil and water conditions. Although number of stems/ha in this forest are smaller and palms less conspicuous, the slope forest shares dominant species of both forests but with taller trees and greater basal area (32 m2/ha) and above-ground biomass (32,581 g/m2). The above-ground biomass and the vegetative bioelement stores were estimated by harvesting sample trees and palms and allometric regressions. Above-ground net primary production (ANPP) is based on total litterfall accumulation, measured over a 12-15 month period (1,202 g/m2/yr for the terrace forest and 873 g/m2/yr for the slope forest), giving minimum estimates of NPP.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DNPP_MGD_477%26ac%3Dtrue
5 https://daac.ornl.gov%2FNPP%2Fguides%2FNPP_MGD.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F477
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FNPP_MGD_477.zip
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Fnpp_logo_square.png
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fnpp%2Ftropical_forest%2FNPP_MGD%2Fcomp%2FNPP_MGD.pdf
21 https://doi.org/10.3334/ORNLDAAC/477
5 https://search.earthdata.nasa.gov/search?q=NPP_MGD_477&ac=true
57 NPP_MGD_477.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_MGD_477.zip
34 npp_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png
33 NPP_MGD.pdf https://data.ornldaac.earthdata.nasa.gov/public/npp/tropical_forest/NPP_MGD/comp/NPP_MGD.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2751946032-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

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