黄土高原地区城郊型侵蚀环境及其调控

文章阐述了黄土高原地区城市发现现状、城郊型侵蚀环境的概念与组成，分析了城郊型侵蚀环境具有脆弱性、组成要素复杂、人为影响强烈、环境变化具有节律性、阶段性、变性等特点、并提出了调控城郊侵蚀环境的指导思想、依据和主要措施，以及平原型、丘陵山地河谷型、矿区型和过渡型等四种调控模式。e

THE SUBURBAN ERODED ENVIRONMENT AND ITS CONTROL ON THE LOESS PLATEAU, CHINA

Along with the regional economic development on the Loess Plateau, urbanization is obviously sped up, the quantity of cities and towns is increasing and the urban area is enalrged rapidly. In 1985, there had been 36 cities/towns on the Loess Plateau, and the urban population had been 17.0543 million persons and occipied 20.8% of the total. Up to 1997, the quantity of the cities/towns had been increased to 57, and the urban population had increased to 33.6905 million persons and occupied 37.3% of the total population in this area. This paper discusses the present situation of development of the cities/towns, and the conpcept and composition of the subruban eroded environment. The subruban eroded environment means the environment conditions affecting soil erosion to a certain degree in the suburban areas of county towns, prefectural and provincial cities as well as the industrial and mining areas. It is considered that the suburban eroded environment is charaterized by fragility, complicated composition, violent human activities, easy variability, etc. The guiding ideology, some measures and models are put forward for controlling the suburban eroded environment on the Loess Plateau.