NPP Tropical Forest: John Crow Ridge, Jamaica, 1974-1978, R1

Description

This data set contains five NPP data files and three climate data files (ASCII .txt format). There is one NPP file for each of the five sub-types of upper montane tropical forest located along John Crow Ridge in the Blue Mountains of Jamaica. Biomass, productivity, tree mortality, standing crop of litter, LAI, and nutrient content of leaf fall were measured from 1974 to 1978. Long-term climate data are available from Cinchona Botanic Gardens, approximately 3 km south of the John Crow Ridge study area and at similar elevation. The John Crow Ridge study areas (18.08 N 76.65 W) consist of 8 to 10 contiguous 10 m x 10 m permanent plots. The forests are of low stature and appear to be completely undisturbed. The forest floor at one sub-site (Mor Ridge) was overlain by a 30-50 cm layer of mor humus with a high C/N ratio. ANPP was estimated to be between 654-997 g/m2/year (sum of litterfall and trunk/branch increment), or 854-1,057 g/m2/year (including tree mortality). These figures are lower than for lowland tropical forests with greater leaf turnover and reflect the relatively low stature of the upper montane forest plots. Above-ground biomass was estimated by both destructive methods and nondestructive regression analysis. Values ranged from 23,000 to 34,000 g/m2. Below-ground biomass (5,370 g/m2) was determined for one site by harvesting roots to a depth of 50 cm. LAI for trees plus understory, where measured, was 5.5-5.7 m2/m2.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DNPP_JHN_475%26ac%3Dtrue
5 https://daac.ornl.gov%2FNPP%2Fguides%2FNPP_JHN.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F475
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FNPP_JHN_475.zip
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fnpp%2Ftropical_forest%2FNPP_JHN%2Fcomp%2FNPP_JHN.pdf
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Fnpp_logo_square.png
5 https://search.earthdata.nasa.gov/search?q=NPP_JHN_475&ac=true
21 https://doi.org/10.3334/ORNLDAAC/475
33 NPP_JHN.pdf https://data.ornldaac.earthdata.nasa.gov/public/npp/tropical_forest/NPP_JHN/comp/NPP_JHN.pdf
57 NPP_JHN_475.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_JHN_475.zip
34 npp_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png
5 https://search.earthdata.nasa.gov/search?q=SNF_MET_1980_167&ac=true
21 https://doi.org/10.3334/ORNLDAAC/167
57 SNF_MET_1980_167.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/SNF_MET_1980_167.zip
34 snf_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/snf_logo_square.png
5 met_1980.def https://data.ornldaac.earthdata.nasa.gov/public/snf/SNF_MET_1980/comp/met_1980.def
47 met_1980.txt https://data.ornldaac.earthdata.nasa.gov/public/snf/SNF_MET_1980/comp/met_1980.txt
33 nws_daily_climate_1980.pdf https://data.ornldaac.earthdata.nasa.gov/public/snf/SNF_MET_1980/comp/nws_daily_climate_1980.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2884977545-ORNL_CLOUD.iso19115
47 nws_daily_climate_1980.txt https://data.ornldaac.earthdata.nasa.gov/public/snf/SNF_MET_1980/comp/nws_daily_climate_1980.txt
5 https://search.earthdata.nasa.gov/search?q=NPP_JHN_475&ac=true
21 https://doi.org/10.3334/ORNLDAAC/475
57 NPP_JHN_475.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_JHN_475.zip
34 npp_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png
33 NPP_JHN.pdf https://data.ornldaac.earthdata.nasa.gov/public/npp/tropical_forest/NPP_JHN/comp/NPP_JHN.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2751945511-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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