Erosion environment in the sediment-rich area on the Loess Plateau |
| |
Authors: | Jiao Ju-ying PhD Li Jing Wang Wan-zhong |
| |
Institution: | Institute of Soil and Water Conservation, CAS and Ministry of Water Resources; Northwest Sci-techonology University of Agriculture and Forestry, Yangling 712100, China |
| |
Abstract: | Based on the investigation and analysis of characteristics of precipitation, natural environment, socio-economic factors and
soil erosion, this paper indicates that the precipitation is the main driving force for the soil erosion in the sediment-rich
area, its variability determines the characteristics of soil and water loss; the natural conditions such as the drainage systems,
geological and topographic features, the composition of soil and land surface materials, vegetation and climate determine
the seriousness of soil and water loss; irrational socio-economic activities of human beings usually accelerated soil and
water loss; meanwhile, the low preservation rate and inferiority of soil and water conservation measures made it impossible
to make rapid progress on soil and water loss control. Furthermore, the characteristics of erosion environment endowed this
area with more sediment that is the main reason for the flooding disasters by the Yellow River. Therefore, more emphasis should
be placed on the enhancement of soil and water conservation. The soil loss prediction models will provide scientific basis
for the planning of soil and water conservation, the designing of soil and water conservation measures and the valuation of
effects of soil and water loss control. According to the analysis of the previous studies on soil loss prediction, and the
water-sediment variation features, it is thought that study on soil loss prediction under various rainfall conditions and
soil-water conservation measures should be carried out. |
| |
Keywords: | Loess Plateau sediment-rich area soil erosion environmental characteristics |
本文献已被 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《地理学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《地理学报(英文版)》下载免费的PDF全文 |
|