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在研究兰州都市圈水土流失规律的基础上,划分了7个水土流失类型区,研究范围涵盖风蚀水蚀复合区、黄土高原丘陵沟壑区等。以兰州都市圈为研究对象,针对不同类型区的水土流失特点,提出了“五核+两轴”的水土流失防治技术体系,建立了库(城)区、近郊、远郊不同核心区的优化模式,并阐述了各模式的结构与功能。
Based on the study of the laws of soil and water loss in the Lanzhou metropolitan area, seven types of soil and water loss areas were divided into areas of wind erosion and water erosion complex and hilly and gully areas of the Loess Plateau. Taking Lanzhou metropolitan area as the research object, aiming at the characteristics of soil and water loss in different types of areas, a system of prevention and control of soil erosion with “five cores + two axes” was put forward, and the core areas of reservoir (city), suburbs and outer suburbs Optimization mode, and explained the structure and function of each mode.