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基于“四水四定”的京津冀地区水资源空间均衡及其分布动态演进分析
Analysis of water resources spatial equilibrium and dynamic evolution of water resources distribution in the Beijing-Tianjin-Hebei Region based on “Basing Four Aspects on Water Resources”
【摘要】 为深入探究京津冀地区水资源空间均衡及其分布动态演进特征,将京津冀地区划分为4个子区域:中部核心功能区、东部滨海发展区、南部功能拓展区和西北部生态涵养区。基于“四水四定”方针,从水资源与建设用地、耕地、人口和第二产业增加值之间的4组匹配关系出发,采用Dagum基尼系数和Kernel密度估计方法,探讨了京津冀地区水资源空间均衡及其分布动态演进过程。结果表明:2007—2022年京津冀地区水资源基本处在临界均衡状态,主要差异来自子区域间,多年平均贡献率达67.4%;京津冀地区的水资源匹配关系有所优化,但地区差距仍然存在并有持续扩大的趋势。
【Abstract】 To further explore the water resources spatial equilibrium and it’s distribution dynamic evolution characteristics in the Beijing-Tianjin-Hebei Region, the Beijing-Tianjin-Hebei Region was divided into four sub-regions: the central core functional area, the eastern coastal development area, the southern functional expansion area, and the northwestern ecological conservation area. Based on the “Basing Four Aspects on Water Resources” policy, starting from the four matching relationships between water resources and construction land, arable land, population, and added value of the secondary industry, the Dagum Gini coefficient and Kernel density estimation methods were used to explore the water resources spatial equilibrium and it’s distribution dynamic evolution process in the Beijing-Tianjin-Hebei Region. The results show that from 2007 to 2022, water resources in the Beijing-Tianjin-Hebei Region were basically in a critical equilibrium state, with the main differences coming from sub-regions, and the average annual contribution rate reached 67.4%. The water resource matching relationship in the Beijing-Tianjin-Hebei Region has been optimized, but regional disparities still exist and continue to widen.
【Key words】 water resources spatial equilibrium; Dagum Gini coefficient; Kernel density estimation; “Basing Four Aspects on Water Resources”; the Beijing-Tianjin-Hebei Region;
- 【文献出处】 水资源保护 ,Water Resources Protection , 编辑部邮箱 ,2025年01期
- 【分类号】TV213.4
- 【下载频次】123