[Parameters: Topic='BIOSPHERE', Term='VEGETATION', Variable_Level_1='NITROGEN']
SEEDLING CANOPY CHEMISTRY, 1992-1993 (ACCP)Entry ID: ACCP_CANOPYCHEM
Abstract: This data set describes the nitrogen and chlorophyll content of small, monospecific canopies formed from seedlings of Douglas-fir (Pseudotsuga menziesii) and bigleaf maple (Acer macrophyllum). The trees were provided different levels of fertilization in order to produce canopies with varying nitrogen and chlorophyll concentration. For the Douglas-fir, fertilization was provided during the dormant ... season, so there were no differences in growth or leaf area among canopies, and canopies were at a constant density with varying foliar chemistry. For the maple, seedlings were aggregated at various densities, producing a matrix of leaf area as well as chemistry variations. Before destructive analysis for foliar chemistry, canopy reflectance was measured under natural sunlight (see ACCP Seedling Canopy Reflectance Spectra Data).
Data Set Citation
Dataset Originator/Creator: JOHNSON, L.F.YODER, B.J.
Dataset Title: SEEDLING CANOPY CHEMISTRY, 1992-1993 (ACCP)
Dataset Release Date: 1999
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/422Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=422&term2attribut...
Start Date: 1992-11-06Stop Date: 1993-03-15
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Email: ljohnson at mail.arc.nasa.gov
CSU Monterey Bay, Earth Systems Science & Policy MS242-4 NASA Ames Research Center
City: Moffett Field
Province or State: CA
Postal Code: 94035-1000
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: 1999-05-07
Last DIF Revision Date: 2011-10-25