通过野外实地考察结合遥感技术手段开展珠海市三灶区城市水土流失重点调查。三灶区水土流失类型以人为侵蚀为主 ,主要是由于开发平台建设、取土采石和修筑公路造成 ,侵蚀类型复杂多样 ,多沿交通道路两侧以及城市建成区周遍地带分布 ,侵蚀模数相差很大 ,最大侵蚀模数和最小侵蚀模数之间相差 3个数量级 ,充分反映了城市水土流失的特点。 Through the field study combined with remote sensing techniques to carry out the investigation of the focus of soil erosion in urban areas in Zhuhai City. Soil erosion types in Sanzao area are dominated by man-made erosion mainly due to the construction of platforms, earth quarrying and road construction. The types of erosion are complex and diverse, distributed along the peri-urban belt on both sides of traffic roads and urban built-up areas, The difference between the maximum erosive modulus and the minimum erosive modulus is three orders of magnitude, which fully reflects the characteristics of urban soil and water loss.