摘要
本文通过对45场极强烈侵蚀降雨、产流、产沙特征的统计分析,得到了极强烈侵蚀降雨、产流、产沙特征与过程变化的数量指标,并对岔巴沟和韭园沟的10次极强烈侵蚀作了典型分析。
According to the dividing criterion of erosion intensity,generaly the erosion with the erosive modulus more than 10000 t/km 2 is called as extreme intense erosion or calamity erosion.Based on the statistic analysis on rainfall,runoff generating and sediment generating characteristics of 45 extreme intense erosions,the quantitative indexes of rainfall,runoff generating and sediment generating features and process variation of extrme intense erosion are obtained,and typical cases analysis on 10 extreme intense erosions are made.
出处
《自然灾害学报》
CSCD
1998年第1期78-82,共5页
Journal of Natural Disasters
关键词
土壤侵蚀
产流
产沙
黄土地貌
降水
Soil erosion Runoff generating Sediment generating Loess geomorphy