NPP Tropical Forest: Cinnamon Bay, U.S. Virgin Islands, 1982-1993, R1Entry ID: NPP_CC
Abstract: This data set contains three ASCII files (.txt format). One data file contains above-ground biomass, litter, litterfall, herbivory, biomass change, and above-ground net primary productivity (ANPP) estimates for a late secondary moist subtropical forest based on measurements from 16 permanent study plots located along an elevational (60-290 m) and topological gradient within the 132-ha Cinnamon Bay ... watershed on St. John, U.S. Virgin Islands. The purpose of the study was to provide information on forest structure, species composition, and forest productivity along environmental gradients, including the effects of hurricanes and drought. The other two files provide climate records from nearby weather stations (1917-1981). Above-ground biomass was measured every 5 years (1983-2003). Litterfall accumulation was determined in 1992-1993. In 1983, total above-ground biomass on all plots combined averaged 13,870 g/m2; by 2003 during a post-hurricane recovery period, it had declined by nearly 7 percent. In 1983, biomass was greatest on the summit, intermediate on slopes and valleys, and least on ridges; by 2003, the quantities for all sites had converged except on the summit plot. In 1992, ANPP was estimated based on annual litterfall accumulation (897 g/m2/year) plus biomass change due to delayed mortality (142 g/m2/year) plus estimated herbivory (25 g/m2/year), giving a total ANPP of 1,064 g/m2/year. Periodic storms and drought appear to maintain the forest in a disturbed state.
Data Set Citation
Dataset Originator/Creator: WEAVER, P.L.
Dataset Title: NPP Tropical Forest: Cinnamon Bay, U.S. Virgin Islands, 1982-1993, 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/473Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=473&term2attribut...
Start Date: 1917-07-01Stop Date: 2003-07-31
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (787) 766-5335
Fax: (787) 766-6302
Email: p_weaver at upr1.upr.clu.edu
International Institute of Tropical Forestry USDA Forest Service Rio Pedras P.O. Box 25000
City: Rio Pedras
Postal Code: 00928-2500
Country: PUERTO RICO
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
ORNL DAAC User Services Office Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-09-13
Last DIF Revision Date: 2013-10-04