SATELLITE-DERIVED LEAF-AREA-INDEX AND VEGETATION MAPS AS INPUT TO GLOBAL CARBON-CYCLE MODELS - A HIERARCHICAL APPROACH

被引：52
|
作者：
BADHWAR, GD [1 ]
MACDONALD, RB [1 ]
MEHTA, NC [1 ]
机构：
[1] MIT,LINCOLN LAB,LEXINGTON,MA 02173
来源：
INTERNATIONAL JOURNAL OF REMOTE SENSING | 1986年 / 7卷 / 02期
关键词：
BIOMASS - CARBON DIOXIDE - ECOLOGY;
D O I：
10.1080/01431168608954680
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
The observed rise of the concentration of carbon dioxide over the last 30 years has intensified interest in the study of the global carbon cycle. The key role of vegetation in this cycle is clearly demonstrated by the semi-annual variations of the carbon dioxide concentration in a given hemisphere. The primary variables of interest are net primary productivity and the biomass on a global scale and the key to their estimation is the leaf-area index (LAI). A global determination of the LAI is practical only with remote-sensing satellite systems. A hierarchical approach to obtaining a LAI map of deciduous boreal forests, which contain a significant part of the total global carbon reservoir using satellite data is presented.
引用
收藏
页码：265 / 281
页数：17
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