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云南金沙江流域重力侵蚀量分析

Analysis on Amount of Gravitational Erosion in Jinsha River Basin of Yunnan Province

【作者】 杨子生

【Author】 YANG Zisheng (College of Resources Environment and Earth Science, Yunnan University, Kunming 650091) 

【机构】 云南大学资源环境与地球科学学院 云南昆明650091

【摘要】 重力侵蚀量是区域土壤侵蚀总量的重要组成部分,是土壤侵蚀量调查研究中不可忽视的重要内容之一。以云南金沙江流域为例,探讨了区域重力侵蚀量(包括侵蚀的岩土体物质总量和其中的土壤侵蚀量)的测算方法;根据该流域已有的滑坡(崩塌)、泥石流调查研究资料并结合典型调查,在确定各县重力侵蚀量测算参数的基础上,分别计算出各县及全流域的年均重力侵蚀物质总量和土壤侵蚀量,并分析了该流域重力侵蚀量的主要特点。

【Abstract】 The amount of gravitational erosion is an important part of the total amount of regional soil erosion, thus it is an indispensable important content of investigation and study on soil erosion. Taking Jinsha River Basin of Yunnan Province as an example, the paper has probed into the measuring and calculating method of regional gravitational erosion amount (including the total amount of eroded rock and soil matter and soil erosion amount in it). According to the data of landslide (including collapse ) and debris flow investigation and study in the Basin in the past, and combining with the on the spot survey of typical landslide and debris flow examples, which has calculated every county and the whole of the Basin of the average annual total matter amount of gravitational erosion and soil erosion amount in it on the basis of delimiting every county of all parameters of calculating gravitational erosion amount, and analysed the main characteristics of the gravitational erosion amount in the Basin.

【基金】 国家自然科学基金资助项目(批准号40061006)
  • 【文献出处】 水土保持学报 ,Journal of Soil Water Conservation , 编辑部邮箱 ,2002年06期
  • 【分类号】S157.1
  • 【下载频次】233
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