节点文献
闽南沿海水蚀区土壤侵蚀遥感监测技术
The remote sensor monitoring technology on the soil erosion in water eroding areas of south Fujian
【摘要】 以闽南沿海水蚀区的晋江流域为实验区,利用大量的水土保持实验数据和USLE原型结构(即:A=f·R·K·SL·CP),建立了适合该流域水蚀区的土壤侵蚀遥感测报模型;在中国南方红壤地区率先建立了县(市)级土壤侵蚀定量遥感测报系统,实现了土壤侵蚀定量、实时、快速测报,并在1.1万km2土地上应用;建立了以像元(30m×30m)为基础的空间数据库系统及其可更新的GIS系统。根据对该流域中下游的南安市1988年、1995年和1996年实现动态测报,与实地调查法和档案法比较,一致性达79%以上。
【Abstract】 Jinjiang watershed, where located in the water eroding area of south Fujian coast, was used as experiment zone. A remote sensing prediction model on the soil erosion that suitable for this watershed was established by using a great deal of data collected from soil and water conservation experiments, and prototype structure of USLE (A= f · R· K · SL · CP);a quantitative soil erosion remote sensing prediction system at county (city) level in red soil area in southern China was also established innovatively in this research , it realized the quantitative, real time, and quick prediction on soil erosion. This prediction system was applied in an area of 11000 km2; a spatial database system based pixels of 30 m × 30 m and its renewable GIS system were established. According to the manual prediction made in 1988, 1995, and 1996 in Nanan City where located in middle and down stream of the watershed, the result consistency reached more than 79% comparing with the on-spot investigation method and file method.
【Key words】 Soil erosion; RSt GISj Monitoring; Water eroding areas of southern Fujian;
- 【文献出处】 福建农业学报 ,Fujian Journal of Agricultural Sciences , 编辑部邮箱 ,2002年02期
- 【分类号】S157
- 【被引频次】16
- 【下载频次】114