The paper describes the method and conclusion of soil erosion survey and mapping （scale-l:100

000）

area measurement and regional planning in Yuqiao reservoir basin in Tian-jing Area based on pre-USSR ’Salyut’ Space Station remotely sensed image. The relationship between the soil erosion and whole nitrogen and phosphorous lost in typical sample area has been tantatively discussed

and this offered the scientific basis for the solution of eutrophica-tion of water quality in inhabitants living

industry and agriculture in Tianjing Area.