IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.5
Regional ecological security anddiagnosisof 0bstaclefactors in underdevelopedregions:acasestudy inYunnan Province,China
OU Zhao-rong; ZHU Qing-ke; SUN Yong-yu
Corresponding AuthorZHU Qing-ke ; SUN Yong-yu
2017-05
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:5Pages:870-884
Subtype期刊论文
AbstractIn order toclarify regional ecological security status and formation mechanism of regional ecological security barriers in underdeveloped regions ofChina,we took Yunnan province as a case to evaluate its regional ecological security by using entropy matter-element model,comprehensive index and GIS spatial method,and we diagnosed itsobstacle factors through obstacle degree model. We found a low overall level of regional ecological security in Yunnan. OnlyKunmingfell into the good level, 68% of the regions were below the critical safe level. For the vast majority of regions in Yunnan, their regional ecological security was unstable. The indexes related to per capita resources, geological and topographyenvironment, economic, and technologywere at the unsafe or dangerous level.The indexes related to urban expansion, level of income, cultivated land quality were at the level of critical safety. The indexes concerning urban management capacity, airqualityand waterenvironment wereat the good or ideallevel. Yunnan's regional ecological security was not good due to natural obstructive environment itself, simultaneously lower backward economic and social level restricted the ability of ecological security responsetomanageragileecologicalenvironment. The results of the composite index wereroughly consistent with those of the entropy weight matter-element model. The mean values of the classification index,from high to low, were: the state index>the response index>the pressure index. The state index and the response index had a significant mutual promotion to each other.The regions with good composite index, state index and response index mainly distributed in the central regions of Yunnan Province. Spatial autocorrelation of regional ecological security level in Yunnan was not obvious. Water resources, economic and social development were main obstacle factors of the regional ecological security.When distinguishing with obstacle type, Kunming belonged to natural ecological environment barrier type, while other regions belonged to economic and social barrier type.
KeywordRegional Ecological Security Pressure-state-response Model Entropy Matter-element Model Comprehensive Index Method Spatial Heterogeneity Obstacle Factors
DOI10.1007/s11629-016-4199-5
Indexed BySCI
Language英语
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18713
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.5
Recommended Citation
GB/T 7714
OU Zhao-rong,ZHU Qing-ke,SUN Yong-yu. Regional ecological security anddiagnosisof 0bstaclefactors in underdevelopedregions:acasestudy inYunnan Province,China[J]. Journal of Mountain Science,2017,14(5):870-884.
APA OU Zhao-rong,ZHU Qing-ke,&SUN Yong-yu.(2017).Regional ecological security anddiagnosisof 0bstaclefactors in underdevelopedregions:acasestudy inYunnan Province,China.Journal of Mountain Science,14(5),870-884.
MLA OU Zhao-rong,et al."Regional ecological security anddiagnosisof 0bstaclefactors in underdevelopedregions:acasestudy inYunnan Province,China".Journal of Mountain Science 14.5(2017):870-884.
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