干旱区生态环境知识资源中心(Arid): 贵州岩溶石漠化20年演变特征与影响因素分析

Arid

	贵州岩溶石漠化20年演变特征与影响因素分析
其他题名	20 year’s evolution features and influence factor analysis of rocky desertificaion in Guizhou
	李建存; 涂杰楠; 童立强; 郭兆成
来源期刊	国土资源遥感
ISSN	1001-070X
出版年	2013
卷号	25 期号:4 页码:133-137
中文摘要	贵州是我国岩溶石漠化最严重的省份,分析其石漠化长期演变规律可为该省石漠化治理工作提供客观依据。以20世纪80年代末、90年代末及2008年3期、时间跨度达20 a的遥感图像为基础数据,经过几何纠正、图像配准、影像镶嵌、辐射校正和信息增强等处理,依据石漠化分类标准进行遥感图像解译和信息提取; 结合野外调查和解译修正,得到贵州省碳酸盐岩分布图、石漠化现状分布图、石漠化演化图和石漠化数据库。通过对比分析认为: 从20世纪80年代末至90年代末,贵州省岩溶石漠化呈严重恶化态势,年均恶化面积达744 km~2; 从20世纪90年代末至2008年前后岩溶石漠化有所改善,年均改善面积为1 153.3 km~2。同时,结合贵州省石漠化演变特征,讨论了农业人口的减少、沼气的开发利用、人均收入的增加以及退耕还林国策与石漠化演化规律的相关关系,以期为石漠化的进一步改善和治理工作提供客观依据。
英文摘要	Guizhou’s Karst rocky desertification is most serious in China. The analysis of the evolution features could provide the objective basis for the tackling and transformation of rocky desertification. The survey of the rocky desertification was based on the three phases of remote sensing images spanning 20 years (at the end of the 1980’s, the end of the 1990’s and the year of 2008). On the basis of geometric correction, image registration, image mosaic, radiometric correction, and information enhancement and in combination with the field examination and artificial interpretation, researchers obtained the limestone distribution map, the rocky desertification distribution map, the rocky desertification evolution map and the data base. Comparison and analysis show that, from 1988 to 1999, the rocky desertification of Guizhou Province became more and more serious, and the annual average degradation area increased by 744 km~2; nevertheless, from 1999 to 2008, the area of degradation became smaller and smaller, and the degradation area was reduced by 1 153.3 km~2 per year. In combination with the evolution features of rocky desertification in Guizhou Province, this paper deals with the relationship of decrease of agricultural population, the development and utilization of marsh gas, the increase of per head income and the policy of conversion of cropland into forest to the evolution regularity of rocky desertification, with the purpose of providing objective grounds for the further tackling and transformation of rocky desertification.
中文关键词	石漠化 ; 遥感 ; 贵州 ; 演变
英文关键词	rocky desertification remote sensing Guizhou evolution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:4991819
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229756
作者单位	中国国土资源航空物探遥感中心, 北京 100083, 中国
推荐引用方式 GB/T 7714	李建存,涂杰楠,童立强,等. 贵州岩溶石漠化20年演变特征与影响因素分析[J],2013,25(4):133-137.
APA	李建存,涂杰楠,童立强,&郭兆成.(2013).贵州岩溶石漠化20年演变特征与影响因素分析.国土资源遥感,25(4),133-137.
MLA	李建存,et al."贵州岩溶石漠化20年演变特征与影响因素分析".国土资源遥感 25.4(2013):133-137.