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	GIS/RS based evaluation of regional ecological security - A case study of Wanquan County Hebei Province around Beijing - art. no. 641801
	Xu Y.; Xu Y.
	2006
会议名称	Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie)
关键词	ecological security (ES) GIS and RS quantitative research Wanquan County China
页码	41801-41801
英文摘要	The aim of this study was to develop a GIS/RS based evaluation system for regional ecological security (RES). Wanquan County of Hebei Province was taken as a case study area and 3 types of evaluating indicators, including vegetation changes, LUCC (land use/cover change) and soil erosion, processed by GIS/RS technologies, were selected. By the comprehensive index method, a quantitative evaluation model was built with the three types of indices based on GIS/RS technologies, and their weights were balanced by introducing least squares solution. The final evaluation image and the statistical results were generated in ArcGIS9.0/Spatial Analyst module, so the GIS/RS based model for RES was realized successfully. Through our case study, it was proved that the evaluation study on RES was improved by the intercross between Geoinformatics and Ecology. GIS was a powerful analysis tool, RS was an ideal data-source and GPS could provide the exact real-time positioning information for our study. Just because of the comprehensive application of "3S" technologies, the study on the evaluation of RES was lifted to the positioning, quantitative and visualized level.
收录类别	CPCI
会议录出版者	Spie-Int Soc Optical Engineering
语种	英语
ISSN号	0277-786X
ISBN号	978-0-8194-6527-6
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/25435]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Xu Y.,Xu Y.. GIS/RS based evaluation of regional ecological security - A case study of Wanquan County Hebei Province around Beijing - art. no. 641801[C]. 见:Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie).

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