摘要
本文探讨了华南花岗岩风化壳丘坡上发育的崩、陷型冲沟的侵蚀机制和形态演化特征,並通过崩岗系统稳定性分析,提出了治理崩岗的原则和措施。
A preliminary inquire into the erosion mechanism and formal evolution feature of the toppling and slumping type gully, which dominates the disintegration of red soil hill slopes in the granite areas of south China is entered into details.Physical and chemical changes of the clay particles in soil cause chiefly the toppling and slumping from the headwall and sidewalls of gullies. Not only towards the divide but also the gully outlet, the slope disintegration expands its area, resulting progressively in an armchair-like landform.Analysis of slope disintegration system puts forward a suggestion that to control the slope disintegration, enhance effect of feedback should be focused on, thus making the system to reach a state of relative stability as soon as possible.
出处
《热带地理》
北大核心
1990年第1期31-39,共9页
Tropical Geography
关键词
侵蚀
崩塌
塌陷
冲沟
丘坡
Erosion
Topple
Slump
Gully
Slope disintegration
System
