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  

An Analysis of the Effect of Peculiar Geological and Geomorphologic Conditions on Water Erosion Desertification in Guangxi

作　　者：陈华[1] 宋志宏[2] 王永江[1] 

机构地区：[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

出　　处：《国土资源遥感》2010年第B11期169-173,共5页Remote Sensing for Land & Resources

基　　金：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)

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G IS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。Guangxi is one of the less developed areas in China. With increasing population and accelerating regional exploitation, water erosion desertifieation 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 desertifieation area. Some logical control countermeasures are also put forward in this paper.

关 键 词：地质因素 广西 水蚀荒漠化 治理措施 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]