中国地质2024，Vol.51Issue(1)：221-233,13.DOI:10.12029/gc20220615001
京津冀平原非常规水资源利用前景分析及其生态环境效应
Prospect analysis of unconventional water resources utilization and eco-environmental effects in Beijing-Tianjin-Hebei Plain
摘要
Abstract
This paper is the result of hydrogeological survey engineering. [Objective]The Beijing-Tianjin-Hebei Plain faces a serious shortage of water resources,and the contradiction between supply and demand is very prominent.Increasing the use of unconventional water resources and forming a diversified water supply pattern is of great significance to effectively alleviate the contradiction between supply and demand and support the socio-economic development and ecological civilization construction of the Beijing Tianjin Hebei Urban Agglomeration.[Methods]This paper systematically carries out classified data statistics on supply directions,development and utilization models,and water supply scaleof unconventional water resources.We analyze their development and utilization prospects and ecological environment effects according to the planning and allocation objectives of unconventional water resources in Beijing-Tianjin-Hebei Plain.[Results]Unconventional water resources in the area include brackish water,recycled water,desalinated seawater,rain water.The brackish water is mainly distributed in Tianjin,Cangzhou,Hengshui in the central and eastern plains,with a water supply prospect of 5.43×108 m3;Recycled water is mainly used in large industrial cities such as Beijing and Tianjin,with a water supply prospect of 34.22×108 m3;Desalinated seawater is mainly used in Tianjin and other coastal cities,with a water supply prospect of 4.19×108 m3;The use of rainwater is relatively scattered.[Conclusions](1)There is a risk of soil salinization when brackish water is used for agricultural irrigation,and water and salt regulation should be strengthened.(2)The recycled water is used for ecological replenishment of rivers,the surface water is eutrophic and the groundwater is not obviously polluted;Irrigation with recycled water in shallow groundwater buried areas will increase the risk of nitrate pollution;It is suggested that high-risk emerging pollutants be included in the monitoring system of recycled water use.(3)The concentrated brine and cooling hot water from the tail liquor of seawater desalination may change the distribution,composition and diversity of natural marine ecosystems,which should be paid attention to.(4)The use of rainwater can reduce the water quality risk of sewage entering the river,but excessive use may affect the stability of the regional ecosystem.It is recommended that urban areas appropriately expand the use.关键词
非常规水资源/微咸水/再生水/海水淡化/雨洪水/开发利用模式/供水规模/生态环境效应/水文地质调查工程/京津冀平原Key words
unconventional water resources/brackish water/recycled water/seawater desalination/rain water/development and utilization mode/water supply scale/eco-environmental effect/hydrogeological survey engineering/Beijing-Tianjin-Hebei Plain分类
资源环境引用本文复制引用
孟瑞芳,杨会峰,包锡麟,徐步云,李磊,李谨丞..京津冀平原非常规水资源利用前景分析及其生态环境效应[J].中国地质,2024,51(1):221-233,13.基金项目
国家自然科学基金地质联合基金(U2244214)、中国地质调查局项目(DD20190336,DD20221752)、中国地质科学院基本科研业务费项目(SK202118、SK202216)及河北省创新能力提升计划高水平人才团队建设专项(225A4204D)联合资助.Supported by Geological Joint Fund of the National Natural Science Foundation of China(No.U2244214),the projects of China Geological Survey(No.DD20190336,No.DD20221752),basic scientific research project of Chinese Academy of Geological Sciences(No.SK202118,No.SK202216)and Hebei Province Innovation Capability Enhancement Plan High Level Talent Team Construction Project(No.225A4204D). （U2244214）
