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  5. Research on Ecological Risk with Urban Expansion of Putian City by Remote Sensing and Evaluation Mod

Research on Ecological Risk with Urban Expansion of Putian City by Remote Sensing and Evaluation Mod

来源 :2014年国际计算机科学与软件工程学术会议 | 被引量 : 0次 | 上传用户：xielongj_30
【摘 要】
：
As is well known,a series of ecological risk is caused by the change of land use,which severely affects and restricts the development of social economy.In this paper,we use supervised classification t
【作 者】
：
Chao ZHAO Zhan-Qiang CHANG Xiao-Meng LIU Qi YAO Zu-Rui AO 
【机 构】
：
College of Resource,Environment & Tourism,Capital Normal University,No.105,North Road of West 3rd Ri
【出 处】
：
2014年国际计算机科学与软件工程学术会议
【发表日期】
：
2014年12期
【关键词】
：
Supervised classification Fuzzy comprehensive evaluation Ecosystem 
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论文部分内容阅读
　　As is well known,a series of ecological risk is caused by the change of land use,which severely affects and restricts the development of social economy.In this paper,we use supervised classification to monitor the land use change of Putian City from 2005 to 2010 and establish the confusion matrix to demonstrate the land use changes intuitively.Then,we use fuzzy comprehensive evaluation and the results show that the increase of construction lands and the decrease of forest lands,orchard lands and cultivated lands exacerbate the ecological risk.Finally,with the combination of objective and subjective analysis,some suggestions are put forward to protect the green system.It is of great significance to make decisions as well as city planning.
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