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Remote sensing of wetland biomass and productivity for global biosystem researchThe study of ecosystem function and the contributions of particular ecosystems to global elemental cycling will require data collection from orbital platforms. Presently used ground sampling techniques are not adequate for large area vegetation assessments. The research was directed toward an understanding of the relationship between spectral radiance and plant canopy biomass. Changes in the architecture of the canopy alters the observed spectral radiance patterns. The green components of a plant canopy interacts most strongly with incident radiation and usually reflect edaphic conditions as they relate to plant vigor. Plant biomass serves as an excellent integrator of the environmental factors encountered by the plant and can be used as an indicator for predicting soil redox, nutrient status, microbial activity, etc. The use was examined of TM spectral data to discriminate biomass classes and, in turn, to relate the biomass classes to the chemical status of the soil. Several preliminary studies have indicated that solar angle can be used to improve biomass predictions. This important observation also suggests that latitudinal extrapolation of the biomass predicting models will be possible if selected characteristics of the incident radiation are known.
Document ID
19930073164
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hardisky, M. A.
(Delaware Univ. Newark, DE, United States)
Klemas, V.
(Delaware Univ. Newark, DE, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1985
Publication Information
Publication: NASA. Ames Research Center, First Symposium on Biospheric Research
Subject Category
Earth Resources And Remote Sensing
Accession Number
93N70611
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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