节点文献
乌江下游德江县喀斯特石漠化及其防治
DISTRIBUTIONS AND CAUSES OF ROCKY DESERTIFICATION AND ITS CONTROLLING MEASUREMENTS OF DEJIANG COUNTY IN WUJIANG BASIN
【Author】 TENG Jian-zhen~1 SU Wei-ci~1,2 LIAO Feng-lin~1 CHE Jia-xiang~1 (1.Institute of mountain resources,Guizhou Academy of Sciences,Guying 550001 China;2.Geography Department,Chong Qing Normal University,Chong Qing 400047,China)
【机构】 贵州科学院山地资源研究所;
【摘要】 基于TM 影像解释和实地考察,查清了德江县石漠化面积为70693hm~2、占全县土地总面积的34.1%,划分了石漠化强度(中度以上的石漠化面积占全县总面积的16.6%),明确了德江县石漠化的空间分布格局;分析了德江石漠化的危害;从地形地貌、岩性、降水、耕种方式等方面探讨了石漠化的成因,最后提出了德江县石漠化综合防治对策。
【Abstract】 Based on TM imagine and field investigation,this paper analyzed the current distributed area(accounts to 70 693 hm~2、34.1% of the total area of Dejiang county)and patterns of rocky desertification,divided developing degrees of rocky desertifi-cation(the area of middle degree rocky desertification is more than 16% of the total area of Dejiang county),and studied its in-fluencing effects on regional social and economic development such as cultivated area trends to decrease and contradiction be-tween man and environment is sharp,surface potable water for man and domestic animals tends to reduce,and the drought andflood become more and more frequent,etc..,and detail explored the causes of rocky desertification of Dejiang county in Wu-Jiang basin.Finally corresponding proposals to harness rocky desertification were suggested.
【Key words】 distributed patterns; cause; controlling measurement; rocky desertification Dejiang County; Wujiang basin;
- 【会议录名称】 中国地质学会工程地质专业委员会、贵州省岩石力学与工程学会2005年学术年会暨“岩溶·工程·环境”学术论坛论文集
- 【会议名称】中国地质学会工程地质专业委员会、贵州省岩石力学与工程学会2005年学术年会暨“岩溶·工程·环境”学术论坛
- 【会议时间】2005-09
- 【会议地点】中国贵阳
- 【分类号】X171
- 【主办单位】中国地质学会工程地质专业委员会、贵州省岩石力学与工程学会