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題名:基於社會生態系統視角的長三角地級城市韌性度評價
書刊名:中國人口.資源與環境
作者:孫陽張落成姚士謀
出版日期:2017
卷期:2017(8)
頁次:151-158
主題關鍵詞:韌性抗打擊能力適應風險長三角社會生態GISResilienceAnti-strike capabilityAdapt riskYangtze RiverSocial ecology
原始連結:連回原系統網址new window
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為提升城市應對重大沖擊和慢性壓力的能力,提高城市的抗打擊能力與恢復能力,以及城市對抗不確定風險的韌性程度,本文結合現實背景,以城市社會生態系統的視角,對2014年長三角地區16個地級城市韌性進行實證分析。采用GIS的空間分析和疊加功能方法,從生態環境、市政設施、經濟和社會發展4個方面選取24個具體指標,對長三角地區16個地級城市韌性程度及其空間狀態做出評價,并確定測度標準值。首先對構成城市韌性的4個因子:生態、市政設施工程、經濟以及社會發展進行分析和數字化,得出各因子對城市韌性影響程度的柵格圖層;其次對圖層進行空間疊加,再得到長三角地區地級城市韌性度評價圖。評價結果表明:(1)長三角地級城市韌性呈現"級差化"分布狀態,總體呈現出中等韌性狀態;(2)長三角地級城市韌性空間分異特征顯著,其北翼城市比南翼城市韌性程度較高;(3)長三角地級城市經濟、生態韌性在空間分布上相對集中,趨向協調均衡發展。通過城市韌性度分析,認為評價結果基本符合近年來長三角地區城市韌性發展的整體狀況,可以在一定程度上增強城市社會生態系統對外界風險的適應能力,并在今后的城市發展調適過程中更具韌性,從而對不同時空尺度的城市韌性狀態評價提供一種思路。
This paper presents an empirical analysis of the resilience of 16 prefecture cities in the Yangtze River Delta in 2014 by combining actual situations and the perspective of an urban socio-ecological system.This paper aims to improve the abilities of cities in dealing with serious trauma and chronic stress,boost their anti-strike and recovery capabilities,and increase their resilience against uncertain risks.Measuring standards are determined by selecting 24 specific indicators based on the aspects of ecological environment,municipal facilities,economics,and social development using the GIS spatial overlay analysis method.First,the raster layer of the effect of each factor on a resilience of a city is acquired by analyzing and digitalizing the four component factors of city resilience,i.e.,ecology,municipal facilities,economics,and social development.Subsequently,the evaluation map of the resilience of the prefecture cities in the Yangtze River Delta Region is obtained by spatially overlaying the rater layers.Evaluation results show the following:(1)the resilience of the prefecture cities in the Yangtze River Delta Region shows a"differential"distribution pattern,and the entire resilience is intermediate;(2)the spatial differential features of the prefecture cities in the Yangtze River Delta are remarkable,and the resilience of the northern cities is higher than that of the southern cities;and(3)the spatial distribution of economics,and the resilience of the prefecture cities in the Yangtze River Delta Region concentrate relatively and tends to develop equally.The evaluation results conform with the overall development of city resilience in the Yangtze River Delta Region in the recent years.The cities can also improve their socio-ecological system using the analysis to cope with the external risks,allowing them to become more resilient.Moreover,the results offer ideas regarding resilience analysis of the cities in different spatial sizes.
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