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现代空间技术和基于ＧＩＳ的土壤侵蚀定量评价预报技术，使区域水土流失快速调查成为可能。建立水土流失基础数据库，利用遥感技术快速调查和定期更新评价因子，开发空间型土壤流失评价模型系统，在ＧＩＳ环境下进行土壤侵蚀的评价与统计分析，是土壤侵蚀快速调查的基本方法。对土壤侵蚀分类分区系统、土壤侵蚀评价因子选择、区域土壤侵蚀基础数据库建立、中国水土流失评价模型系统等是区域水土流失快速调查中的几个重要问题。
Modern space technology and GIS-based soil erosion quantitative evaluation and forecasting technology make rapid survey of soil erosion in the region possible. The establishment of a basic database of soil and water loss, rapid survey using remote sensing technology and periodic update of evaluation factors, the development of space-based soil erosion assessment model system and the evaluation and statistical analysis of soil erosion under the GIS environment are the basic methods for rapid soil erosion survey. The classification system of soil erosion, the selection of evaluation index of soil erosion, the establishment of the basic database of regional soil erosion and the evaluation system of soil and water loss in China are several important issues in the rapid investigation of regional soil erosion.