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Landscape-Based Assessment of Urban Resilience and Its Evolution: A Case Study of the Central City of Shenyang

机译:基于景观的城市恢复力评估及其进化 - 以沉阳市中央市为例

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摘要

Urban resilience is increasingly considered a useful approach to accommodate uncertainties while achieving sustainability in urban systems, especially in the context of rapid urbanization and global environmental change. However, current research on the quantitative assessment of urban resilience is limited. This study introduces four proxies of urban resilience, i.e., diversity, connectivity, decentralization, and self-sufficiency, and the perspective of the urban landscape for the measurement of urban resilience and further guidance on planning practices by establishing connections between resilience potential and landscape characteristics. Using multi-source data and employing landscape-based analysis methods, urban resilience is investigated from 1995 to 2015 in the central city of Shenyang. The results indicate that the composition and configuration of the urban landscape changed significantly during this period, which had a great influence on urban resilience. The temporal and spatial evolution of urban resilience showed obviously directional preferences and an evident distance effect. Overall, the resilience level increased slightly, while the internal differences experienced a declining trend. The four characteristics can be deployed as practical principles to shape urban resilience. The adjustment and trade-offs of these aspects to enhance responsive structures and simultaneously maintain sustainable ecosystem services can be effective ways to realize long-term resilience.
机译:城市弹性越来越多地被认为是一种有用的方法,以适应不确定性,同时实现城市系统的可持续性,特别是在快速城市化和全球环境变化的背景下。但是,目前对城市弹性量的定量评估的研究有限。本研究介绍了四个城市恢复力,即多样性,连通性,权力下放和自给自足,以及城市景观对城市恢复力的衡量的视角,并通过在恢复力潜力与景观特征之间建立联系进一步指导规划实践。使用多源数据和采用基于景观的分析方法,从1995年到2015年在沉阳市中心调查了城市恢复力。结果表明,在此期间,城市景观的组成和配置在这一时期发生了很大的变化,这对城市恢复能力有很大影响。城市弹性的时间和空间演化显得明显定向偏好和明显的距离效应。总的来说,韧性水平略有增加,而内部差异经历了趋势下降。这四种特征可以作为实用原则来塑造城市弹性。这些方面的调整和权衡,以增强响应结构,同时维持可持续的生态系统服务可以是实现长期弹性的有效方法。

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