从区域土壤侵蚀学原则和实用性原则相兼顾的角度出发 ,吸取前人在野外测点布设、测试指标、测试方法及相应设备选择上的经验和教训 ,总结出全国范围内水土流失土壤野外测试的“点、面映射”、“点、类映射”和“分级点控”的测点选择原理 ;初步确立了全国水土流失土壤野外测试的指标体系、测试方法和操作规程体系、测试原始数据的统计公式体系 ;初步建立了全国水土流失土壤因子的原始数据库和统计数据库 From the perspective of regional soil erosion principles and practicability principles, we draw on the experiences and lessons learned from predecessors in the field measurement layout, test indicators, test methods and equipment selection, summed up the soil erosion of the soil within the country The mapping principle of point, surface mapping, point mapping, class mapping and grading point control was established. The index system, testing methods and operating rules system of soil testing in the soil of China were preliminarily established. Statistical formula system; the initial establishment of the national soil and water loss factors and the original database of statistical data base