Spectrometry of pasture condition and biogeochemistry in the Central Amazon

Details Spectrometry of pasture condition and biogeochemistry in the Central Amazon Spectrometry of pasture condition and biogeochemistry in the Central Amazon

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.2769a&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 17, p. 2769-2772

Physics

7

Global Change: Biogeochemical Processes, Global Change: Remote Sensing

Scientific paper

Regional analyses of Amazon cattle pasture biogeochemistry are difficult due to the complexity of human, edaphic, biotic and climatic factors and persistent cloud cover in satellite observations. We developed a method to estimate key biophysical properties of Amazon pastures using hyperspectral reflectance data and photon transport inverse modeling. Remote estimates of live and senescent biomass were strongly correlated with plant-available forms of soil phosphorus and calcium. These results provide a basis for monitoring pasture condition and biogeochemistry in the Amazon Basin using spaceborne hyperspectral sensors.

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