NPP Temperate Forest: Great Smoky Mountains, Tennessee, USA, 1968-1992, R1

Description

This data set contains two data files (.csv format). One file contains site characteristics, stand descriptors, and above-ground biomass and ANPP data for seven old-growth temperate forest stands and one young cove forest stand in the Great Smoky Mountains of Tennessee. The old-growth stands (> 200 years old) span several watersheds on the north slope of the mountains at elevations ranging from 720 to 1,140 m. The younger stand (48-63 years old, elevation 910 m) developed after agricultural abandonment. The second file contains monthly mean climate data averaged over four years (1947-1950) from four climate stations located along an elevational gradient (445-1,920 m) in Great Smoky Mountains National Park. DBH measurements were made at the beginning of the study and biomass increment was measured from a subset of trees. ANPP was estimated using regional species-specific allometric relationships for tree mass. Biomass, volume, and annual input of coarse woody detritus are also reported. Live biomass in the old-growth stands (32,600-47,100 g/m2) is among the highest reported for temperate forests of eastern North America while ANPP is moderate (630-1,010 g/m2/yr). ANPP in the younger stand was higher (1,180-1,310 g/m2/yr). In comparison with forests worldwide, inputs of coarse woody debris is moderate. Revision Notes: Previously reported field collection dates have been corrected in the NPP file. Biomass and ANPP values were converted from Mg/ha and Mg/ha/yr to g/m2 and g/m2/yr, respectively, consistent with units in other files in the NPP collection. Please see the Data Set Revisions section of this document for detailed information.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DNPP_GSM_804%26ac%3Dtrue
5 https://daac.ornl.gov%2FNPP%2Fguides%2FNPP_GSM.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F804
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FNPP_GSM_804.zip
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fproject%2Fsquare%2Fnpp_logo_square.png
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fnpp%2Ftemperate_forest%2FNPP_GSM%2Fcomp%2FNPP_GSM.pdf
5 https://search.earthdata.nasa.gov/search?q=NPP_GSM_804&ac=true
21 https://doi.org/10.3334/ORNLDAAC/804
57 NPP_GSM_804.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/NPP_GSM_804.zip
34 npp_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/npp_logo_square.png
33 NPP_GSM.pdf https://data.ornldaac.earthdata.nasa.gov/public/npp/temperate_forest/NPP_GSM/comp/NPP_GSM.pdf
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2751950039-ORNL_CLOUD.iso19115

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

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