刁口河生态补水对湿地浅层地下水水化学特征的影响研究  

Study on the Impact of Diaokou River Ecological Water Replenishment on the Hydrochemical Characteristics of Shallow Groundwater in Wetlands

作　　者：周振 宫晓东 陈萍 ZHOU Zhen;GONG Xiaodong;CHEN Ping(Estuary Administration Bureau,Yellow River Administration Bureau of Shandong Province,Dongying 257000,Ch)

机构地区：[1]山东黄河河务局黄河河口管理局,山东东营257000

出　　处：《水资源开发与管理》2024年第10期52-57,共6页Water Resources Development and Management

基　　金：国家重点研发计划项目(2022YFC3204305);黄委优秀青年人才科技项目(HQK-202301)。

摘　　要：刁口河故道湿地浅层地下水是高度动态的复杂系统,分析其水化学特征及生态补水影响作用过程对科学管理地下水资源、保护故道湿地生态环境具有重要意义。本文通过野外水文地质调查,采集了相关地下水水样进行水质分析,结合数理统计方法,系统揭示了研究区水化学特征及生态补水改良过程。结果表明,研究区TDS值较高,Na^(+)与Cl^(-)为主控因子;水化学类型受海水入侵和生态补水的双重影响;近海区域在海水入侵作用影响下,地下水水化学类型以Na-Cl型为主;常态化生态补水过程对水化学组分进行了改善,丰富了水化学类型,减轻了海水入侵的影响,驱动水生态进入良性恢复进程。相关结果可为刁口河生态补水方案的优化提供一定参考。The shallow groundwater in the old channel wetland of the Diaokou River is a highly dynamic and complex system.Analyzing its hydrochemical characteristics and the impact of ecological water replenishment is of great significance for the scientific management of groundwater resources and the protection of the old channel wetland’s ecological environment.Through field hydrogeological surveys,relevant groundwater samples were collected for water quality analysis.Combined with mathematical and statistical methods,the hydrochemical characteristics and the improvement process of ecological water replenishment in the study area were systematically revealed.The results show that the study area has high TDS values,with Na^(+)and Cl^(-)being the main controlling factors.The water chemistry is influenced by both seawater intrusion and ecological water replenishment.In coastal areas,under the influence of seawater intrusion,the groundwater mainly exhibits a Na-Cl type.The ongoing ecological water replenishment process has improved the chemical composition of the water,enriched the hydrochemical types,mitigated the impact of seawater intrusion,and driven the water ecology toward a positive recovery process.These findings can provide useful references for optimizing the ecological water replenishment strategy for the Diaokou River.

关 键 词：刁口河 生态补水 地下水 水化学特征影响 

分 类 号：TV213.4[水利工程—水文学及水资源]