长春市土壤侵蚀遥感监测与时空变化分析

Method of Monitoring Soil Erosion Dynamic Change of Changchun City Based on "3S" Technology

土壤侵蚀是地理环境各因子综合作用的结果,是目前中国生态环境治理的重点。要治理土壤侵蚀,改善生态环境,必须对土壤侵蚀的发生、发展进行动态监测。只有及时掌握区域的土壤侵蚀情况,才能总结土壤侵蚀规律,进行合理的水土保持规划,采取有效措施治理土壤侵蚀。文中介绍了应用"3S"技术开展土壤侵蚀动态监测的思路和研究方法,得到长春市1995年和2000年2期数字化土壤侵蚀图,并对得到的结果进行了系统分析。通过野外实地验证,证明该方法切实可行。

Soil erosion is the result of every geographical environment factor＇s synthesis function. To solve soil erosion problems and to improve the ecosystem environment, it is integrant to carry dynamic survey of soil erosion＇s occurrence and development. To timely grasp soil erosion situations of the studying area, soil erosion rules should be summed up, reasonable soil conservation programming developed and effective administer measures adopted. The research method of applying ‘3S＇ technique to the dynamic monitoring of soil erosion was studied, two digital soil erosion maps of 1995 and 2000 were obtained and systemic analysis based on the results were carried out. This method is proved pragmatic and viable by on-the-spot field verification.