摘要
四川盆地中部的丘陵,是我国土壤侵蚀和水土流失最严重的地区之一。本文分析了川中丘陵土壤侵蚀的特征及影响因素,探讨了土壤侵蚀与水土流失的关系,以及该地区泥沙输移比的时间变化。笔者认为,川中丘陵的土壤侵蚀与泥沙外移是不同步的,沟谷的运移能力对侵蚀物质的外运极为重要。所以,对丘间沟谷的系统研究可为川中丘陵的水土保持工作提供基础的科学依据。
The hills of the central part of Sichuan basin is one of regions with the most serious erosion and water and soil losses in China. This article analyses characters and causes of soil erosion, deals with the relationship between erosion and water and soil losses and changes of delivery ratio of sediment through time in this region. The author holds that soil erosion and sediment transportation are asynchronous, and ability of transportation of gullies and valleys is important to outward of transportation of sediment in the hills. Therefore, a systematic research of gullies and valleys between hills can provide scientific basis for work of the soil and water conservation in the hilly region.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1989年第3期86-93,共8页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
土壤侵蚀
丘陵
泥沙输移
四川盆地
sichuan basin
hill
soil erosion
sediment transport
