[Parameters: Topic='BIOSPHERE', Term='VEGETATION', Variable_Level_1='BIOMASS']
NPP Tropical Forest: Consistent Worldwide Site Estimates, 1967-1999, R1Entry ID: npp_tropical
Abstract: This data set contains one file ASCII file (.csv format). The file contains documented field measurements of NPP components for 39 old-growth tropical forests distributed worldwide between latitudes 23.58 N and 23.58 S. The data were compiled from published literature and other extant sources. The data are georeferenced to each intensivestudy site and include above- and below-ground biomass, fine ... root biomass, litterfall, branchfall, above-ground biomass increment, and herbivory estimates, where available. Other site characteristics are included, such as elevation, forest type and age, soil type, and climate summaries. Key references are provided. Estimates of above-ground net primary productivity (ANPP) for the 39 sites were made based on the sum of measured or estimated above-ground biomass increment plus measured or estimated fine litterfall accumulation plus estimated losses to consumers plus estimated biogenic volatile organic compound emissions. Estimates of below-ground NPP were made based on professional judgment that below-ground production is 0.2 x ANPP (lower bounds) or 1.2 x ANPP (upper bounds). TNPP was calculated as the range between the low and high values of ANPP + BNPP. Average BNPP and TNPP estimates were also calculated. Across the broad spectrum of the tropical forests studied (dry to wet, lowland to montane, nutrient-rich to nutrient-poor soils), the estimates of total NPP range from 3.4 to 34.4 Mg/ha/yr (lower bounds) and from 6.2 to 63.0 Mg/ha/yr (upper bounds).
Data Set Citation
Dataset Originator/Creator: BROWN, S.L.CHAMBERS, J.Q.CLARK, D.A.HOLLAND, E.A.KICKLIGHTER, D.W.NI, J.THOMLINSON, J.R.
Dataset Title: NPP Tropical Forest: Consistent Worldwide Site Estimates, 1967-1999, R1
Dataset Release Date: 2013
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/616Online Resource: http://mercury.ornl.gov/ornldaac/#fq=fileID:616
Start Date: 1967-01-01Stop Date: 1999-12-31
ISO Topic Category
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Creation and Review Dates
DIF Creation Date: 2013-09-13
Last DIF Revision Date: 2013-10-04