特殊地质地貌条件对水蚀型荒漠化的影响分析—以广西壮族自治区为例
陈华1 , 宋志宏2 , 王永江1
1.中国国土资源航空物探遥感中心,北京100083; 2.中国矿业大学资源与安全工程学院, 北京100083
An Analysis of the Effect of Peculiar Geological and Geomorphologic Conditions on Water Erosion Desertification in Guangxi
CHEN Hua 1 , SONG Zhi-hong 2 , WANG Yong-jiang 1
1. China Aero Geophysical Survey & Remote Sensing Center for Land and Resources, Beijing 100083, China; 2.School of Resources and Safety Engineering, China University of Mining and Technology, Beijing 100083, China
摘要 广西壮族自治区是我国经济相对欠发达的地区之一,随着人口的增长和区域开发进度的加快,水蚀型荒漠化问题也日益严重。本文研
究发现,广西的地形地貌、岩土性质、构造等因素对水蚀荒漠化有直接重要影响。基于GIS分析发现广西地区的水蚀型荒漠化主要分布在碳酸
盐岩地区、花岗岩地区、泥岩地区、砂砾岩及砂页岩地区,其中以碳酸盐岩地区为主,占总体荒漠化面积的46%以上。对荒漠化地区的地质岩
性、地质构造、地形地貌等地质因素进行了分析,并提出了合理的治理措施。
关键词 :
高光谱遥感 ,
煤层烧变岩 ,
Fe3+ 定量分析
Abstract : Guangxi is one of the less developed areas in China. With increasing population and accelerating regional
exploitation, water erosion desertification has become increasingly serious. The peculiar lithology and structure of
Guangxi are likely to form specific physiognomy. This paper holds that there exists direct effect of physiognomy, lithology
and structure on water erosion desertification in Guangxi, with the physiognomy being the primary factor in this aspect.
Based on GIS analysis, the authors have found that the water erosion desertification is mostly distributed in such areas
as carbonate, granite, mudstone and gritstone. The area of carbonate is most serious in this aspect, possessing 46% of the
total desertification area. This paper has analyzed the lithology, structure, physiognomy of the desertification area. Some
logical control countermeasures are also put forward in this paper.
Key words :
Hyperspectral remote sensing
Burnt rock
Fe3+ content quantitative analysis
收稿日期: 2010-04-21
出版日期: 2010-11-13
基金资助: 中国地质调查局地质调查项目“中国东部基础地质遥感调查与监测”(编号: 1212010510706)。
通讯作者:
陈华(1977-),男,博士,高级工程师,主要从事国土资源遥感专业的研究,已发表论文10余篇。
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