Analysis of sustainable utilization of water resources based on the improved water resources ecological footprint model: A case study of Hubei Province, China
Analysis of sustainable utilization of water resources based on the improved water resources ecological footprint model: A case study of Hubei Province, China
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DOI：
10.1016/j.jenvman.2020.110331
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发表时间：
2020-05-15
影响因子：
8.7
通讯作者：
Fang, Chuanglin
中科院分区：
文献类型：
--
作者：
Wang, Huan;Huang, Jiejun;Fang, Chuanglin
水资源的可持续利用已成为世界范围内的重要课题。水资源生态足迹（WEF）的研究对水资源的管理和优化配置具有重要的理论和现实意义。目前的世界经济论坛模型没有考虑地区之间的差异，因为它使用了均匀均衡和产量因子。本研究提出了一个改进的WEF模型，考虑了这两个因素的区域特征，提供了更准确反映水资源消耗和供应的结果。以湖北省为例，计算2005年、2010年和2015年各城市人均世界经济论坛、人均水资源生态承载力（WEC）和水资源生态压力指数（WEPI），分析水资源利用的时空格局。改进模型的结果表明：湖北省水资源生产能力逐渐提高，由边缘高、中心低的圆形格局转变为东南高、西北低的阶梯格局；此外，世界经济论坛和世界经济论坛人均收入总体呈上升趋势。由于不同城镇化水平和第一、第二产业比重的差异，鄂东地区的水资源压力大于鄂西地区。西部峡谷区水资源利用的可持续性高于江汉平原。
Sustainable utilization of water resources has become a crucial topic worldwide. Study of the water resources ecological footprint (WEF) has important theoretical and practical significance for the management and optimal allocation of water resources. The current WEF model does not consider the differences between regions because it uses uniform equalization and yield factors. In this study, an improved WEF model is proposed by taking into account the regional characteristics of those two factors and provides results reflecting the consumption and supply of water resources more accurately. Taking Hubei Province, China, as an example, this study calculated the WEF per capita, the water resources ecological carrying capacity (WEC) per capita and the water resources ecological pressure index (WEPI) of each city in 2005, 2010 and 2015, and analysed the spatiotemporal patterns of water utilization. The results from the improved model show that the productive capacity of water resources in Hubei Province is gradually increasing and its pattern changed from a circular pattern with a higher edge and a lower centre to a ladder pattern that is higher in the southeast and lower in the northwest. In addition, the WEF and the WEC per capita show overall upward trends. Due to the differences at different urbanization levels and in the proportions of primary and secondary industries, the water resources pressure is greater in the east Hubei than that in the west. The western canyon region exhibits relatively higher sustainability of the utilization of water resources than the Jianghan Plain.