七十年代后期,航天遥感技术在水土流失调查和科学研究中的应用逐步扩大。1984年11月我们进行了初步尝试,应用美国陆地卫星的图象,目视解译徐州、连云港两市的水土流失分级,编绘水土流失图(土壤侵蚀图)。从实践结果看,应用卫星图象目视解译水土流失分级,能保证一定精度,满足省、市一级水土保持规划的需要,成图比较 In the late seventies, the application of space remote sensing technology in soil erosion investigation and scientific research was gradually expanded. In November 1984, we made a preliminary attempt to visualize the soil and water loss scale of Xuzhou and Lianyungang cities by using the image of the United States Landsat and compile the soil erosion map (soil erosion map). Judging from the practical results, the application of satellite imagery to interpret soil and water loss visually can ensure a certain degree of accuracy and meet the needs of water and soil conservation planning at provincial and municipal levels.