RS-based research on the relationship between vegetation development and groundwater in upper-middle reaches region of the Yellow River basin |
| |
| Authors: | Tian Kai Li Xiaoqing Kang Xiangwu Huo Aidi Jiang Yunzhong |
| |
| Institution: | Tian Kai , Li Xiaoqing, Kang Xiangwu , Huo Aidi , Jiang Yunzhong( College of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China; Yellow River Conservancy Commission of the Ministry of Water Resources, Zhengzhou 450003, P.R. China; Institute of Scientific and Technical Information of China, Beijing 100038, P.R. China;School of Environmental Science ＆ Engineering, Chang＇an University, Xi＇an 710054, P.R. China;China Institute of Water Resources and Hydropower Research, Beijing 100038, P.R. China) |
| |
| Abstract: | The relationship between the groundwater and the surface eco-environment in arid area is very close. In this paper, the authors extracted normalized difference vegetation index (NDVI) and vegetation conditional ratio (VCR) from MODIS images, and analyzed the relationships among NDVI, VCR and the measured data of groundwater of the same location in the research region. Based on this, the depth of groundwater suitable for vegetation growth in the upper-middle reaches of the Yellow River basin has been calculated. The results show that the depth of groundwater suitable for vegetation growth in the research region ranges from 0.8 to 4.5m, and the optimal groundwater depth is 1.2m. The method developed in this study is applicable to research the relationship between the groundwater and land surface vegetation environment on large-scale in arid area. |
| |
| Keywords: | remote sensing normalized difference vegetation index (NDVI) vegetation conditional ratio (VCR) groundwater upper-middle reaches of Yellow River |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
