京津冀地区水资源空间均衡评价及调控措施

Water resources spatial equilibrium evaluation and regulation measures in Beijing-Tianjin-Hebei Region

为科学诊断京津冀地区水资源空间均衡状态、切实提高京津冀协同发展水安全保障水平,通过河道内外、地表地下水资源供需分析,计算各评价单元的综合缺水量和综合缺水率,以水资源空间均衡度为评价指标对京津冀地区水资源空间均衡进行了评价。评价结果表明,现状情景下京津冀地区整体处于不均衡状态,沧州、衡水等6个评价单元处于严重不均衡状态;未来情景下随着调水和节水力度加大,水资源空间不均衡状态得以改善。基于评价结果从供、需两端提出了确定开发上限、强化节约用水、退减不合理用水、保障生态环境用水、多渠道增加供给和健全法制体制机制等水资源空间均衡调控措施。

To scientifically evaluate spatial equilibrium level of water resources in Beijing-Tianjin-Hebei Region and practically improve the level of coordinately developing water security in the three regions, the integrated water scarcity amount and water scarcity ratio in each evaluation unit are calculated through analyzing the relationship between supply and demand of water resources inside and outside the river course, above and under the ground, and the water resources spatial equilibrium status in Beijing-Tianjin-Hebei Region is evaluated with water resources spatial equilibrium index. The evaluating results indicate that the water resources spatial equilibrium status of Beijing-Tianjin-Hebei Region is imbalance currently. In six evaluating units including Cangzhou and Hengshui, such situation is very serious. The status of water resources spatial equilibrium in Beijing-Tianjin-Hebei Region is getting better as long as water transfer and water saving projects are carried forward. Based on the evaluating results, water resources balanced regulation measures are proposed from the supply and demand perspectives, which consist of fixing upper limit, reinforcing water saving, retrograding improper water consuming, guarding ecology water using, increasing water supply by multiple channel and perfecting the legal system.