DOI: 10.1007/s11069-020-04436-4
论文题名: Dynamic assessment and early warning of ecological security: a case study of the Yangtze river urban agglomeration
作者: Huang Q. ; Peng B. ; Wei G. ; Wan A.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 107, 期: 3 起始页码: 2441
结束页码: 2461
语种: 英语
中文关键词: Driving force-pressure-state-response (DPSR) model
; Dynamic evaluation
; Early warning analysis
; Ecological security evaluation
英文摘要: Ecological security is vital to the survival of human beings and critical to the sustainable development of socioeconomic environment. In view of the deficiencies of the static assessment of ecological security, in this paper ,a dynamical evaluation on the ecological security of urban agglomerations is conducted by utilizing an index system developed from the Driving Force-Pressure-State-Response model. Further, an empirical study is carried out for the Yangtze River Urban Agglomeration to explore the ecological security alarms and change rules: Incorporating the statistical data from 2005 to 2017 into the investigation, the combined weight method is applied to calculate the weight of ecological safety over ecological security contribution, and the Moran's I index is implemented to analyze the changes in the spatial pattern. The results show that (1) The ecological security index of the Yangtze River Urban Agglomeration exhibits a smaller fluctuation primarily caused by the transformation of economic development mode, and the overall ecological security has been improved since 2005 from less safe to security level in general. (2) Spatial differences exist between North and South as well as between urban agglomerations, and the overall ecological security is improved due to ecological protection measures and industrial structure adjustment, and (3) The levels of early warning for these cities in the Yangtze River Urban Agglomeration differ, Varying between medium level and severe level. Furthermore, It is also found that human activities greatly impact the ecological security, and the intensity of land development is the greatest threat. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169083
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: School of Management Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Binjiang College, Nanjing University of Information Science and Technology, Wuxi, Jiangsu 214105, China; Department of Mathematics and Computer Science, University of North Carolina At Pembroke, Pembroke, NC 28372, United States
Recommended Citation:
Huang Q.,Peng B.,Wei G.,et al. Dynamic assessment and early warning of ecological security: a case study of the Yangtze river urban agglomeration[J]. Natural Hazards,2021-01-01,107(3)