【作者】 姜志伟； 陈仲新； 任建强；

【Author】 Jiang Zhiwei;Chen Zhongxin;Ren Jianqiang;Key Laboratory of Resources Remote Sensing and Digital Agriculture, Ministry of Agriculture;Chinese Academy of Agricultural Sciences, Institute of Agricultural Resources and Regional Planning;

【机构】 农业部资源遥感与数字农业重点开放实验室； 中国农业科学院农业资源与农业区划研究所；

【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。更多还原

【Abstract】 The canopy radiative transfer model ACRM and MODIS surface reflectance information were used to inversion of the vegetation leaf area index at Hengshui in Hebei during 3 – 5 months in 2009, and the temporal and spatial characteristic distribution of vegetation LAI was analyzed. The results show that it is better fit between the characteristic distribution of retrieval and local real LAI from winter wheat regreening to mature stage. It was potential to use ACRM to invert key biophysical and biochemical parameters of land surface vegetation.更多还原