依据《中国土壤系统分类 (修订方案 )》和《中国土壤系统分类———理论·方法·实践》的原则与方法 ,选择江宁县淳化镇的低丘岗地和冲地农田 (70 0hm2 )作为典型区段。按照景观、地貌与母质类型 ,设置了 5 1个土壤观察剖面 ,并采集土壤剖面各层段土样进行理化分析。最后拟定出 11个特征土层 ,划分出 6个土系。 According to the principles and methods of “Classification of Soil Systems in China (Revised)” and “Classification, Theory, Methods and Practices of Soil Soils” in China, low hills and red farmlands (70hm2) in Chunhua Town, Jiangning County were selected as Typical section. According to the landscape, topography and parent material types, 51 soil observation sections were set up, and the soil samples of all layers of the soil sections were collected for physical and chemical analysis. Finally, the development of 11 characteristic soil, divided into 6 soil system.