Oak Ridge National Laboratory Distributed Active Archive Center

nasa-ornldaac-422

Seedling Canopy Chemistry, 1992-1993 (ACCP)

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).

daac.ornl.gov

http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=422

Identified by : ACCP_CANOPYCHEM

This dataset was released on January 01, 1999.

The time range for this dataset is November 06, 1992 to March 15, 1993.

The spatial range for this dataset is 37.4015° to 37.4015° latitude, and -122.048° to -122.048° longitude. map

DOI : 10.3334/ORNLDAAC/422
Also known as :

• dataset oai:mercury-ops2.ornl.gov:ornldaac_422 (ornl lexicon)
• dataset oai:mercury.ornl.gov:ornldaac_422 (ornl lexicon)