An assessment of radiance in Landsat TM middle and thermal infrared wavebands for the detection of tropical forest regeneration
作者:
D. S. BOYD,
G. M. FOODY,
P. J. CURRAN,
R. M. LUCAS,
M. HONZAK,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1996)
卷期:
Volume 17,
issue 2
页码: 249-261
ISSN:0143-1161
年代: 1996
DOI:10.1080/01431169608949003
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
It has been postulated that tropical forests regenerating after deforestation constitute an unmeasured terrestrial sink of atmospheric carbon, and that the strength of this sink is a function of regeneration stage. Such regeneration stages can be characterized by biophysical properties, such as leaf and wood biomass, which influence the radiance emitted and/or reflected from the forest canopy. Remotely sensed data can therefore be used to estimate these biophysical properties and thereby determine the forest regenerative stage. Studies conducted on temperate forests have related biophysical properties successfully with red and near-infrared radiance, particularly within the Normalized Difference Vegetation Index (NDVI). However, only weak correlations have generally been observed for tropical forests and it is suggested here that the relationship between forest biophysical properties and middle and thermal infrared radiance may be stronger than that between those properties and visible and near-infrared radiance.
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