[Parameters: Topic='BIOSPHERE', Term='ECOLOGICAL DYNAMICS', Variable_Level_1='ECOSYSTEM FUNCTIONS']
NPP Boreal Forest: Superior National Forest, U.S.A., 1983-1984, R1Entry ID: NPP_SNF
Abstract: This data set contains two ASCII files (.txt format). One file provides ground-based biophysical measurements and above-ground net primary productivity (ANPP) estimates for 31 black spruce (Picea mariana) and 30 quaking aspen (Populus tremuloides) stands in Superior National Forest (SNF) in northeastern Minnesota, U.S.A. (-92 W 48 N). The measurements were obtained during a 1983-1984 intensive ... field campaign. Non-destructive measurements were made in over 100 forest plots covering a 50 x 50 km area. Sacrificed trees for biomass and annual increment measurements were taken outside the plots. The second file provides climate data from nearby weather stations for the period 1976-1986. The data set provides stand structural measurements (diameter at breast height, tree height, crown depth, and stem density), above-ground biomass, leaf area index, bark area index, and ANPP estimates. ANPP data are based on a combination of allometric relationships and annual tree-ring (radial) increments for the 5-year period 1979-1983. In the spruce stands, above-ground biomass ranged from 700-15,100 g/m2, LAI varied between 0.5-4.3, and ANPP ranged from 39-572 g/m2/yr. In comparison, above-ground biomass among aspen stands ranged from 600-22,000 g/m2, LAI varied between 1.3-4.0, and ANPP ranged from 213-1,199 g/m2/yr. The purpose of the SNF campaign was to investigate the ability of remote sensing to provide estimates of ecosystem biophysical properties. In addition to the results presented herein, satellite, aircraft, and helicopter observations and other ground measurements for the study sites are available from the ORNL DAAC Superior National Forest (SNF) Project web site [http://daac.ornl.gov/SNF/snf.shtml].
Data Set Citation
Dataset Originator/Creator: HALL, F.G.
Dataset Title: NPP Boreal Forest: Superior National Forest, U.S.A., 1983-1984, 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/190Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=190&term2attribut...
Start Date: 1976-01-01Stop Date: 1986-12-31
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (301) 614-6659
Phone: (301) 614-6695
Email: fghall at ltpmail.gsfc.nasa.gov
NASA/Goddard Space Flight Center Code 923
Province or State: MD
Postal Code: 20771
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: 2013-07-11
Last DIF Revision Date: 2013-12-06