面向总量闭合的水资源配置模型与应用

水资源总量控制是水资源管理的主要手段,针对区域来水、取用水分开统计,导致区域来水、取用耗排水、断面出境水量不闭合问题,本文从水量控制核算的角度出发,构建基于水循环转化的水资源配置模型,通过模拟区域水资源取用耗排过程下的水循环过程,以区域来水和出境断面水量双向控制方法核算区域水量取用情况。以天津市为例,在全境多年平均来水42.1亿m~3(其中外调水14.7亿m~3)情景下,2020年水平年天津市取用水、耗水和排水等总量闭合控制阈值分别为38.25、22.0和16.25亿m~3,出境水量为22.1亿m~3,根据水资源实际管理需求,模型给出了各区县不同水源和行业相应的控制阈值,研究成果可为水资源消耗双控行动、最严格水资源管理和节水型社会建设提供科学支撑。

The development and application of water resources allocation model based on water balance closure

The control of water use is the main way of water resources management, but the value of the cash inflows and outflows is not equal to water consumption in a region according to the two difference us-ing different methods of measuring. In this paper, The water allocation and simulation model (WAS) based on water cycle transformation is constructed from the view of water accounting, and a two-way control ap-proach, which combined the regional inflows and outflows, is used to account and determine the regional water use, drainage and consumption. In the case of Tianjin City, China in 2020, if the inflows are 4.21 billion m³, the total amount of water use, water consumption and water drainage are 3.825, 2.2 and 1.625 billion m³ respectively, and the outflows is 2.21 billion m³.The results of 13 counties of Tianjin are recom-mended based on above methods to meet water resources management. The research can also provide scien-tific supports for the strictest water resources management and water-saving society construction.