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晋西三川河流域黄土区的滑坡,可根据“滑床”、“稳定性”和“滑坡体体积”三个指标分类、命名。调查滑坡可以1:100,000MSS彩色合成卫片,1:50,000和1:100,000地形图以及地质、地貌、水系、植被和土壤侵蚀等图件作为主要信息源。然后,通过日视判读从彩色红外遥感航片上确定滑坡分布、滑坡类型、滑坡稳定性和滑坡的规模等。分析结果说明,滑坡作的面积与其长度、宽度之间有很高的相关性,用DBASEⅢ数据库管理系统支配,把网格化的滑坡类型分布图的有关数据输入计算机,可计算出滑坡个数、面积和滑塌量,得到滑坡分布密度等10幅专题图件,为该流域的整治与开发提供滑坡方面的信息。
The landslides in the loess area of the Sanchuanhe River basin in the west of Shanxi Province can be classified according to the three indexes of “slide bed”, “stability” and “volume of landslide body”. Landslides were surveyed with 1: 100,000 MSS color composite slate, 1: 50,000 and 1: 100,000 topographic maps, and maps of geology, geomorphology, water systems, vegetation and soil erosion as the main source of information. Then, the distribution of landslides, the types of landslides, the stability of landslides and the scale of landslides are determined from the color IR remote sensing aerial photos through Japanese interpretation. The results show that there is a high correlation between the landslide area and the length and width of the landslide. Using DBASE Ⅲ database management system, the data of landslide type distribution maps are input into the computer to calculate the landslide number, Area and amount of landslide, and get 10 thematic maps of landslide distribution density and provide landslide information for the remediation and development of the basin.