基于ACRM辐射传输模型的植被叶面积指数遥感反演  

THE INVERSION OF VEGETATION LEAF AREA INDEX BASED ON THE CANOPY RADIATIVE TRANSFER MODEL ACRM

作　　者：姜志伟[1,2] 陈仲新[1,2] 任建强[1,2] 

机构地区：[1]农业部资源遥感与数字农业重点开放实验室,北京100081 [2]中国农业科学院农业资源与农业区划研究所

出　　处：《中国农业资源与区划》2011年第1期57-63,共7页Chinese Journal of Agricultural Resources and Regional Planning

基　　金：农业部"948计划"项目(2009-Z31;2010-S2);国际科技合作项目(2010DFB10030);国家自然科学基金(40971218)

摘　　要：研究应用ACRM冠层辐射传输模型和MODIS地表反射率数据反演了河北衡水地区3月初至5月初植被叶面积指数,并分析了其时空分布变化特征。研究时段为冬小麦返青期至成熟期,LAI反演结果与当地冬小麦时空分布特征较为吻合。研究结果显示,基于ACRM冠层辐射传输模型反演植被生化变量具有很大的应用潜力。The canopy radiative transfer model ACRM and MODIS surface reflectance information were used for the inversion of vegetation leaf area index （LAI） at Hengshui in Hebei from the beginning of March to May in 2009, and the temporal and spatial characteristic distribution of vegetation LAI was analyzed. The results showed that there was a good fit between the inversion of LAI and local real distribution from winter wheat regreening to mature stage. To invert key biophysical and biochemical parameters of land surface vegetation using ACRM has a great application potential.

关 键 词：ACRM MODIS 衡水 LAI 

分 类 号：S127[农业科学—农业基础科学] S184