摘要
崩岗主要分布在中国南方花岗岩地区,是一种主要的水土流失方式.从崩岗的定义、分类、发育过程与形成机理、综合治理方面论述了崩岗研究的现状与进展.在前人研究基础上对崩岗的学科归属进行了探讨,并从多方面综合分析了崩岗与灾害的关系,认为地貌学是崩岗过程与分布研究的理论基础,因此将崩岗划为地貌学研究范畴比较合适.由于崩岗不直接造成超出人类社会承受能力的损失,以及崩岗的自然不稳定能量释放过程与滑坡、泥石流、洪水等自然灾害的快速能量释放过程存在质的差别,因此认为崩岗不等同于灾害,但在某些特定条件下,崩岗可以转化为泥石流从而转变为灾害.所以,崩岗的整治应该引起足够的重视.
Collapsed gully, as an important way of soil erosion, is mainly distributed in granite regions of southern China. This paper firstly makes a simple review of current situation and progress of the research on collapsed gully erosion, from collapsed gully＇s definition, classification, developing process, mechanism and comprehensive treatment. Then, based on previous studies, the disciplinary nature of collapsed gully erosion is discussed, and relationship between collapsed gully erosion and disasters from the view of disaster is reflected. Since the research of collapsed gully＇s geomorphic process and distribution is based on the geomorphology theory, we hold that it is proper to classify collapsed gully as geomorphology. Because collapsed gully does not directly cause substantial property and the process of its naturally unstable energy release has qualitative difference from those of landslides and debris floods whose energy release process is rapid, we consider that collapsed gully should not be usually equal to a disaster, only in the case that it transfers into debris flow it should be treated as a disaster.
出处
《亚热带资源与环境学报》
2010年第3期89-94,共6页
Journal of Subtropical Resources and Environment
基金
中山大学三期"211百人计划"科研配套项目(3226131)
国家自然科学基金项目(41071186)资助
关键词
崩岗
水土流失
地貌学
灾害
collapsed gully erosion
soil erosion
geomorphology
disaster
