THE RETRIEVAL OF SOIL MOISTURE UNDER DIFFERENT MATRIC SUCTIONS WITH SPECTRAL REFLECTANCE

摘要：

The relationship between soil moisture and spectral reflectance was explored under different matric suctions. With the soil moisture increasing, the soil reflectance decreased, but when the soil moisture reach saturated water content, the results are reverse. The soil moisture and soil reflectance has good correlation. At 1978nm and 1947nm wavelength, estimation precision was optimal when using relative reflectance and A value, respectively. When using the first derivative of spectral reflectance for estimation, 1370nm is the best wavelength. For the first derivative of A value, the best estimation was obtained at 1406nm. The soil moisture was retrieved with hyperspectral in laboratory. Therefore, we will extend widely hyperspectral remote sensing technology to practice application.

关键词： Soil Water Content Spectral Reflectance Retrieval

作者: Bocheng Xie Chunxia Zhang

作者单位: Institute of Meteorology Science of HuNan Province, Changsha, 410007, China Changsha Environmental P Changsha Environmental Protetion College, Changsha, 410004, China

会议类型: 国际会议

会议名称: 第三届智能化农业信息技术国际学术会议(The 3rd International Symposium on Intelligent Information Technology in Agriculture)(ISIITA)

会议地点: 北京

会议语种:英文

页码: 196-201

在线出版日期: 2005-10-14（万方平台首次上网日期，不代表论文的发表时间）