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| 基于植被-土壤二向反射模型的土壤含水量遥感 | |
| 引用本文： | 宋承运,邓孺孺,王中挺.基于植被-土壤二向反射模型的土壤含水量遥感[J].国土资源遥感,2006,17(3):29-31. |
| 作者姓名： | 宋承运 邓孺孺 王中挺 |
| 作者单位： | 1. 中山大学遥感与地理信息工程系,广州,510275;安徽理工大学资源与环境工程系,淮南,232001 2. 中山大学遥感与地理信息工程系,广州,510275 3. 中山大学遥感与地理信息工程系,广州,510275;中国科学院遥感应用研究所,北京,100101 |
| 摘 要： | 以北京地区为例，利用像元信息分解法，定量提取出区域植被盖度，由植被盖度得到区域叶面积指数，在只考虑一次散射的情况下，利用植被-土壤二向反射模型，提取出下层湿润土壤反射率。通过引入粗糙度因子建立起粗糙地表下土壤反射率与叶面积指数的函数关系，进而得出土壤含水量。 |
| 关 键 词： | 植被-土壤二向反射模型 像元信息分解 叶面积指数 土壤含水量 |
| 文章编号： | 1001-070X(2006)03-0029-04 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2006-04-07 |
REMOTE SENSING FOR DETECTING SOIL WATER CONTENT BASED ON BI-DIRECTIONAL REFLECTANCE MODEL OF CANOPY AND SOIL |
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| SONG Cheng-yun,DENG Ru-ru,WANG Zhong-ting.REMOTE SENSING FOR DETECTING SOIL WATER CONTENT BASED ON BI-DIRECTIONAL REFLECTANCE MODEL OF CANOPY AND SOIL[J].Remote Sensing for Land & Resources,2006,17(3):29-31. | |
| Authors: | SONG Cheng-yun DENG Ru-ru WANG Zhong-ting |
| Institution: | 1. Center for Remote Sensing Application, Zhong Shan University, Guangzhou 510275, China; 2. Anhui University of Science and Technology, Huainan 232001, China; 3. Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China |
| Abstract: | In this paper,Beijing was chosen as a representative study area,and the method of pixel information decomposition was taken on the land part.The land cover percentage was extracted.LAI was calculated according to the research on the cover of plant.Based on characteristics of multi-reflecting light,the authors obtained the reflectance of the soil by using the Bi-directional Reflectance Model of Canopy and Soil and taking only one reflectance into account.According to the roughness factor,the soil water content could be calculated based on the relationship between soil reflaction and LAI. |
| Keywords: | Bi - directional reflectance model of canopy and soil Pixel information decomposition LAI Soil water content |
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