高级检索+

湖北省城市洪涝灾害韧性时空演变及驱动因素分析

Analysis on Spatiotemporal Evolution and Driving Factors of Urban Flood Disaster Resilience in Hubei Province

  • 摘要: 洪涝灾害是湖北省主要自然灾害之一。开展湖北省城市洪涝灾害韧性研究,可加快该地区韧性城市建设,促进城市的可持续健康发展。以湖北省17个城市为研究对象,选取2010-2021年为研究期,从压力、状态、响应等维度构建城市洪涝灾害韧性评价指标体系,运用CRITIC-熵权组合赋权法分析其洪涝灾害韧性时空演变,并利用空间自相关法分析其洪涝灾害韧性空间集聚特征,再用地理探测器模型分析其驱动因素。结果表明:(1)研究期内湖北省城市洪涝灾害韧性指数呈波浪式上升趋势,增幅达34.82%;(2)城市洪涝灾害韧性的空间分布主要呈现为“西高东低”和以武汉为高值向外递减,城市洪涝灾害韧性的空间集聚效应较强;(3)城市洪涝灾害韧性的空间分异性为多因素共同作用。其中,人口暴露程度、地形起伏情况、地表陡缓程度、医疗保障能力为主要驱动因素。研究结果可为城市防洪减灾政策提供参考。

     

    Abstract: Flood disaster is one of the main natural disasters in Hubei province. Conducting research on the resilience of urban flood disasters in Hubei Province can accelerate the construction of resilient cities in this region and promote the sustainable and healthy development of cities. This paper takes 17 cities in Hubei Province as the research object, selects the period from 2010 to 2021 as the research period, constructs the urban flood disaster resilience evaluation index system from three dimensions, including pressure, state and response, analyzes the spatio-temporal evolution of flood disaster resilience by applying the CRITIC-Entropy Weight Method combination weighting method, and analyzes the spatial agglomeration characteristics of flood disaster resilience by using the spatial autocorrelation method. Then the driving factors are analyzed by the geographic detector model. The results indicate that: First, during the study period, the resilience index of urban flood disasters in Hubei Province showed a wave rising trend, with an increase of 34.82%, Second, The spatial distribution of urban flood disaster resilience is mainly “high in the west and low in the east” pattern, with values decreasing outward from Wuhan City. The spatial agglomeration effect of urban flood disaster resilience is strong. Third, the spatial heterogeneity of urban flood disaster resilience is caused by multiple factors. Wherein, population exposure, terrain fluctuation, surface steepness and medical security capacity being the main driving factor. The research results can provide reference for urban flood control and disaster reduction policies.

     

/

返回文章
返回