Ecological vulnerability assessment of Shandong Province under the sensitivity-resilience-pressure(SRP)conceptual model
This study focuses on the ecological vulnerability of Shandong Province in the lower reaches of Yellow River.Based on the ecological sensitivity-resilience-pressure(SRP)conceptual model,an ecological vulnerability assessment system including 16 indicators was developed for Shandong Province under a high spatial resolution.Interval analytic hierarchy process(IAHP)approach is used to assign index weights to reflect the uncertainty of decision makers.The results show that:1)Factors about ecological stress are the main sources influencing the ecological vulnerability index followed by ecological resilience and ecological sensitivity.2)The spatial distribution of ecological vulnerability in the study area is higher in the central and coastal areas but lower in the southwest.The ecological vulnerability is slight,accounting for 66%of the total area.3)Among the 16 urban areas in Shandong Province,Jinan,Zibo and Qingdao have more heavy and very extremely vulnerable areas.In particular,Qingdao has the highest proportion of extremely vulnerable areas(about 5%).By contrast,Liaocheng and Dezhou in the west have the lowest degree of ecological vulnerability and the highest proportion of slight vulnerable areas.4)From the spatial pattern of ecological vulnerability,the spatial correlation of ecological vulnerability shows an obviously positive relationship,and the significant high value clustering and low value clustering.The results of this study will provide theoretical and practical support for ecological and environmental governance in the lower reaches of the Yellow River Economic Belt.
Ecological vulnerabilitysensitivity-resilience-pressure(SRP)modelinterval analytic hierarchy process(IAHP)spatial correlation analysisgeographic information system(GIS)
NETL
NSTL
万方数据
