Assessment of soil erosion risk on area alongside a typical section of road in Longitudinal Range-Gorge Region

作者：Yao Huarong^*; Yang Zhifeng; Cui Baoshan

来源：Chinese Science Bulletin, 2006, 51: 80-87.

DOI：10.1007/s11434-006-8080-8

• longitudinal Range-Gorge Region
• soil erosion
• risk assessment
• BP
• spatial analysis

Assessment of soil erosion risk on the area alongside a road not only provides important guidance to prevent and alleviate soil erosion, but also reflects a road built on soil erosion. The area alongside the road from Simao to Jinghong is chosen as the typical case; spatial analysis of GIS and BP neural network of artificial neural network are used as the methods; 5 factors of 3 aspects, such as topography, climate and land cover, are chosen to assess soil erosion risk on the area alongside a section of typical road. The results are that the area proportion of easier erosion land (the value of erosion risk is from 2.5 to 3.5) is relatively bigger; and the erosion risk of an area alongside the road in a certain distance is higher than an area far away from the road. It shows that the road has an effect on soil erosion of the area alongside it; the effect can be directly or indirectly caused by road construction; and the effect is reflected by the land cover change (including land use and vegetation status) caused by road construction.

• 出版日期2006-11
• 单位北京师范大学; 长安大学