干旱区生态环境知识资源中心(Arid): 内蒙古中部地区土地荒漠化遥感调查及环境质量评价

Arid

	内蒙古中部地区土地荒漠化遥感调查及环境质量评价
其他题名	The Desertification Study and Environmental Quality Assessment in Middle Inner Mongolia Region
	王琳; 陶乐; 冯聪; 白雅文; 和海霞; 刘文灿
ISSN	1000-8527
出版年	2006
卷号	20 期号:3 页码:505-512
中文摘要	选择内蒙古中部地区作为典型荒漠化区域,根据荒漠化土地分类体系,确定决策树的结构以及各类地物在树形中的位置.基于各类地物的光谱反射特性和图像数据反映的综合特征,采取相应的识别和提取方法,以最大限度地利用遥感数据源.在研究过程中,采用从多光谱及多时相TM和ETM+遥感数据中提取出的光谱反射特性、土壤调节植被指数、土壤亮度指数以及土壤湿度指数等复合指数进行不同地物的分类和提取.结果表明:利用决策树分层提取法可以有效地排除和避免提取地物时多余信息的干扰及影响,目标明确.然后,通过图像代数检测法及目视解译法确定1990-2000年土地荒漠化的变化信息,对内蒙古中部地区的荒漠化演变规律做出分析.最后,结合研究区气候数据,在GIS支持下,通过对研究区生态环境质量变化和气候因子变化的相关性分析,表明研究区影响环境变化的主要因子是降水量与蒸发量(干燥度).
英文摘要	This paper is about Middle Inner Mongolia region, which is a typical region of desertification. The structure of the decision tree and the corresponding position of each target are determined according to the desertification land classification. According to the spectrum-reflecting characteristic of targets and the integrated feature of TM and ETM + image data, proper identifying and extracting methods are applied. So the potential of the remote sensing data is maximized. From the multi-band and multi-time TM and ETM+ remote sensing data, the spectrum-reflecting properties, the Soil-Adjusted Vegetation Index (SA VI) , Soil Brightness Index (TCI) , and Moisture Index( MI) are exlracted. And these indexes are used to distinguish and classify the different land types. The result shows the decision tree and multi-layer method is efficient to decrease the intrusion of the extra information in the pixel identification and make the targets definite. Through Image Algebra Detection method and Visual Interpretation method, the changes of the desertification from 1990 to 2000 are collected, and the evolvement rule of desertification in the study area is analyzed. Finally, with the technology of GIS, the analysis of the ecological environment quality changes and climate factors changes reveals that the main factors to influence the environmental changes are precipitation and evaporation (desiccation).
中文关键词	荒漠化土地 ; 决策树 ; 分层提取 ; 演变分析 ; 环境质量 ; 遥感调查 ; 内蒙古排
英文关键词	desertification land decision tree multi-layer extraction technology evolvement analysis environment quality remote sensing investigation Inner Mongolia
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING ; ENVIRONMENTAL SCIENCES
WOS研究方向	Remote Sensing ; Environmental Sciences & Ecology
CSCD记录号	CSCD:2413013
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220297
作者单位	(北京)中国地质大学,土地科学技术系, 北京 100083, 中国
推荐引用方式 GB/T 7714	王琳,陶乐,冯聪,等. 内蒙古中部地区土地荒漠化遥感调查及环境质量评价[J],2006,20(3):505-512.
APA	王琳,陶乐,冯聪,白雅文,和海霞,&刘文灿.(2006).内蒙古中部地区土地荒漠化遥感调查及环境质量评价.,20(3),505-512.
MLA	王琳,et al."内蒙古中部地区土地荒漠化遥感调查及环境质量评价".20.3(2006):505-512.