Savanna and tropical rainforest biomass estimation and spatialization using JERS-1 data

被引:94
作者
Santos, JR
Lacruz, MSP
Araujo, LS
Keil, M
机构
[1] Inst Nacl Pesquisas Espaciais, BR-12201 Sao Jose Dos Campos, SP, Brazil
[2] Deutsch Zentrum Luft & Raumfahrt, D-82230 Wessling, Germany
关键词
D O I
10.1080/01431160110092867
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
The objective of this study is to show the relation among backscatter signals of JERS-1 images and biophysical parameters (biomass values) of forest and savanna formations. Two contact zones involving these vegetation units in Brazilian Amazonia (Roraima and Mato Grosso States) were selected. A regression model was applied during the analysis of these two variables, based on the best fit function and taking into account the data dispersion. Maps were generated showing biomass spatialization of the vegetation typology found in the study areas. The importance of this study is the innovation referring to the joint analysis of JERS-1 data of these two contact zones in Amazonia, representing both an abrupt contact and a smooth contact along a transition zone of savanna/tropical rainforests formations.
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页码:1217 / 1229
页数:13
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