Publication Date:
2019-08-27
Description:
The theoretical analyses of Sellers (1985, 1987), which linked canopy spectral reflectance properties to (unstressed) photosynthetic rates and conductances, are critically reviewed and significant shortcomings are identified. These are addressed in this article principally through the incorporation of a more sophisticated and realistic treatment of leaf physiological processes within a new canopy integration scheme. The results indicate that area-averaged spectral vegetation indices, as obtained from coarse resolution satellite sensors, may give good estimates of the area-integrals of photosynthesis and conductance even for spatially heterogenous (though physiologically uniform) vegetation covers.
Keywords:
EARTH RESOURCES AND REMOTE SENSING
Type:
Remote Sensing of Environment (ISSN 0034-4257); 42; 3; p. 187-216.
Format:
text