河网区跨界水量分配方法研究
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河海大学水文水资源学院

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中图分类号:

TV212.3

基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目);中央高校业务费;国家重点研发计划;


Research on the method of transboundary water allocation in river-net area
Author:
Affiliation:

College of Hydrology and Water Resources,Hohai University

Fund Project:

The National Natural Science Foundation of China;The Central Universities of China;The National Key R&D Program of China;

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    摘要:

    随着长江中下游河网区社会经济的快速发展,水资源四级区以下的河道内取水分配需求日益增加。以洋溪河-双河区域为研究对象,按照逐月用水特征提出研究区分区需水预测成果;以保障河湖生态需水为前提,侧重节水减排、总量控制和综合水效最优构建多区域多目标水量调配优化模型,确定洋溪河-双河水资源四级区以下的水量分配机制。结果表明:(1)基于多目标的分区河网水量优化分配能够有效保障总量红线和生态用水需求约束,并能在综合效益最大化和节水控污之间平衡多子区的配水需求。(2)案例研究表明,洋溪河-双河区域平水年(50%)、枯水年(75%)地表可供水量能总体满足近(2025年)、远(2030年)期水平年需水要求,但特枯水年(95%)近远期水平年均存在一定缺水,需要从周边河道补充水量;逐月配水量分析显示,多目标优化方案充分考虑各子区年内的水量需求,较好反映了水资源对行业或区域发展的刚性约束。

    Abstract:

    With the rapid development of the social economy in the Yangtze Plain, the demand of water intake and allocation in the rivers below water resources zone IV is increasing. Taking Yangxi River-Shuang River area as the research object, the regional water demand prediction results of the study area are put forward according to the monthly water consumption characteristics; On the premise of ensuring the ecological water demand of rivers and lakes, focusing on water conservation and emission reduction, total amount control and optimal comprehensive water use efficiency, build a multi-regional and multi-objective water allocation optimization model to determine the water allocation mechanism below the fourth level of water resources in Yangxi River-Shuanghe River. The results show that: (1) The multi-objective optimal allocation of water volume in regional river network can effectively ensure the red line of total water consumption and the constraints of ecological water demand, and balance the water distribution demand of multiple sub areas between maximizing comprehensive benefits and water conservation and pollution control. (2) The case study shows that the surface water supply of Yangxi River Shuanghe region in normal water years (50%) and low water years (75%) can generally meet the water demand requirements of the near-term (2025) and far-term (2030) level years, but there is water shortage in the near-term and long-term levels in extra low water years (95%), so it is necessary to supplement water from the surrounding rivers; The monthly water distribution analysis shows that the multi-objective optimization scheme fully considers the annual water satisfaction of each sub-region, which better reflects the rigid constraints of water resources on industrial or regional development.

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  • 收稿日期:2022-01-24
  • 最后修改日期:2022-01-24
  • 录用日期:2022-06-17
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