摘要
利用监督分类、NDVI指数等遥感影像处理方法,在大同盆地桑干河流域开展了土壤盐碱地分布及盐渍化程度的应用研究。基于Landsat卫星影像,依据NDVI指数推断了盐碱土壤的分布,与第二次土壤普查和实地调查的结果进行了比较。结果表明,遥感信息技术可以宏观、动态地有效反映出盐碱地的分布及盐渍化程度。
The distribution of saline-alkali soil and the degree of salinity were investigated in the Sanggan River Valley of Datong Basin by the remote sensing image processing methods, such as the supervised classification, NDVI index, etc. The distribution of saline-alkali soil was indicated based on the image of Landsat and NDVI index ,and the results were compared with the second soil census and the filed survey. The results showed that the distribution and salinization degree of saline-alkali soil could be reflected dynamically with macroscopic scale by remote sensing information technology.
出处
《现代农业科技》
2013年第15期239-240,共2页
Modern Agricultural Science and Technology
基金
山西省科技基础条件平台建设项目(2011091004-0101)
关键词
遥感
NDVI指数
盐碱土壤
分布
应用
remote sensing
NDVI index
saline-alkali soil
distribution
application
