Evaluation of comprehensive disaster-bearing capacity of urban natural disasters in the Guangdong-Hong Kong-Macao Greater Bay Area
WANG Jun,1,2, GONG Qinghua,1,2, YU Yan3, YUAN Shaoxiong1,2, CHEN Jun1,2, HUANG Guangqing1,21. Guangzhou Institute of Geography, Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou 510070, China 2. Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China 3. Science and Technology Library of Guangdong Province Guangdong Institute of Scientific & Technical Information and Development Strategy, Guangzhou 510070, China
Abstract With the global climate change, urban natural disasters are becoming more frequent, and the comprehensive disaster-bearing capacity of cities has attracted more and more attention. Based on the characteristics of urban population, society, economy, environment, transportation and other disaster-bearing bodies, a comprehensive evaluation index system of disaster-bearing capacity for urban natural disasters in the Guangdong-Hong Kong-Macao Greater Bay Area was established. Then, based on objective weighted information entropy model, a quantitative evaluation model of urban comprehensive disaster-bearing capacity was put forward. Finally, the comprehensive disaster-bearing capacity value of cities in the Greater Bay Area was calculated, and the comprehensive disaster-bearing capacity level and the influencing factors were analyzed. The evaluation result indicates that Shenzhen, Zhuhai and Guangzhou rank the top three in disaster prevention ability index, and Shenzhen has the highest disaster resistance ability index, followed by Dongguan and Zhuhai. Guangzhou, Dongguan and Shenzhen are the top three in the disaster relief ability index and Zhaoqing has the lowest index. Guangzhou has the highest recovery ability index, followed by Shenzhen, Dongguan and Zhuhai. The disaster prevention, resilience, relief and recovery capabilities of cities in the study area vary greatly. The study result also shows that the comprehensive disaster-bearing capacity value in the Greater Bay Area ranges from 0.1886 to 0.6615. The comprehensive disaster-bearing capacity evaluation values from high to low are Guangzhou, Shenzhen, Dongguan, Zhuhai, Foshan, Zhongshan, Jiangmen, Huizhou and Zhaoqing. Taking the geological disaster data of various cities in the Greater Bay Area as an example, we discussed the evaluation result of this paper. The evaluation results of this paper are well consistent with the actual conditions of cities except Shenzhen. The comprehensive disaster-bearing capacity and the influencing factors of cities are quite diffident, resulting in the short-board effect of the overall disaster-bearing capacity in the Greater Bay Area. It is recommended to strengthen unified planning and management of the comprehensive disaster-bearing capacity in the Greater Bay Area, so as to improve the overall disaster-bearing capacity of the city and ensure the smooth implementation of major national strategy in the Greater Bay Area. Keywords:the Guangdong-Hong Kong-Macao Greater Bay Area;comprehensive disaster-bearing capacity;information entropy model;urban disaster prevention
PDF (4447KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 王钧, 宫清华, 宇岩, 袁少雄, 陈军, 黄光庆. 粤港澳大湾区城市群自然灾害综合承灾能力评价. 地理研究[J], 2020, 39(9): 2189-2199 doi:10.11821/dlyj020200401 WANG Jun, GONG Qinghua, YU Yan, YUAN Shaoxiong, CHEN Jun, HUANG Guangqing. Evaluation of comprehensive disaster-bearing capacity of urban natural disasters in the Guangdong-Hong Kong-Macao Greater Bay Area. Geographical Research[J], 2020, 39(9): 2189-2199 doi:10.11821/dlyj020200401
粤港澳大湾区由广州、佛山、肇庆、深圳、东莞、惠州、珠海、中山、江门九市和香港、澳门两个特别行政区组成的城市群,覆盖面积5.6万km2,人口6670万[13],地理范围见图1。大湾区位于中国东南丘陵南缘,地势北高南低,以中低山丘陵为主,气候为亚热带季风气候,年平均气温为22℃,年平均降雨量为2 300 mm [14]。大湾区地质构造较为复杂,地势起伏较大,人类活动强烈,洪涝、台风、崩滑流、地面沉降等自然灾害频发,极易形成重大的城市公共事件,亟需开展城市自然灾害综合承灾能力评价。由于香港特别行政区和澳门特别行政区基准年统计数据的缺失,本次评价不包含香港和澳门两个特别行政区,但下文研究区仍称为粤港澳大湾区。
Tab. 1 表1 表1粤港澳大湾区城市综合承灾能力评价指标体系 Tab. 1The evaluation index system of the urban integrated disaster-bearing capacity of the Guangdong-Hong Kong-Macao Greater Bay Area
注:此图基于广东省自然资源厅标准地图(审图号:粤S(2018)012号)绘制,底图无修改。 Fig. 4The classified figure of the urban integrated disaster-bearing capacity of the Guangdong-Hong Kong-Macao Greater Bay Area
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