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首页> 外文期刊>Journal of Cleaner Production >An analysis framework for the ecological security of urban agglomeration: A case study of the Beijing-Tianjin-Hebei urban agglomeration
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An analysis framework for the ecological security of urban agglomeration: A case study of the Beijing-Tianjin-Hebei urban agglomeration

机译：城市集镇生态安全分析框架 - 以北京 - 天津 - 河北城市集聚为例

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The ecological security (ES) of urban agglomeration (UA) is an important guarantee and necessary condition for the sustainable development of the region and the country. Based on ecological system theory, this study established a new ES analysis framework for UA; a DPSIR-DEA model was built to evaluate ES from the perspective of system coordination, and Geodetector was used to explore the internal mechanism of the ES system. Taking the Beijing-Tianjin-Hebei urban agglomeration (BTH) as the empirical study area, the results showed that the ES of the BTH was generally insecure during 2005-2018, and it experienced a process in which it first improved, then declined, and finally recovered gradually. The spatial differentiation in the north-south, where the counties in the north have a better ES status than the southern counties, was further aggravated. The spatial autocorrelation analysis indicated that the spatial distribution of ES in BTH has a certain degree of aggregation, and the homogeneity of aggregation is enhanced. The main dominant factors affecting the ES in 2018 included the population density, proportion of construction land, ESV, PM2.5, fertilizer pollution and irrigation area ratio, and the interaction between factors was strengthened. Moreover, the results proved that human production and life play a leading role in the ES maintenance. The study also constructed the driving mechanism of ES and offered suggestions for the ES improvement of the BTH./p
机译：城市集镇（UA）的生态安全是该地区和该国可持续发展的重要保障和必要条件。本研究基于生态系统理论，为UA建立了新的ES分析框架;建立了DPSIR-DEA模型以从系统协调的角度评估es，并且使用地理传料用于探索ES系统的内部机制。以北京天津 - 河北城市集聚（BTH）为实证研究区，结果表明，2005 - 2018年，BTH的ES一般是不安全的，它经历了一个第一次改善的过程，然后拒绝了最后逐渐恢复了。北方的空间差异化，北方的县具有比南部县更好的es状况，进一步加剧。空间自相关分析表明，BTH中的空间分布具有一定程度的聚集，并且增强了聚集的均匀性。影响2018年的主要主导因素包括人口密度，建筑用地比例，ESV，PM2.5，肥料污染和灌溉面积比，并加强了因素之间的相互作用。此外，结果证明，人类生产和寿命在ES维护中发挥着主导作用。该研究还构建了ES的驱动机制，并为BTH的ES改进提供了建议。＆ / p＆

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