内蒙古内陆河流域地下水资源评价及相关地质环境问题分析  

Evaluation of groundwater resources and analysis of related geological environment problems in Inner Mongolia Inland River Basin

作　　者：宁航 柳富田 王国明 张竞 张卓 陈社明 NING Hang;LIU Futian;WANG Guoing;ZHANG Jing;ZHANG Zhuo;CHEN Sheming(Tianjin Center,China Geological Survey(North China Center of Geoscience Innovation),Tianjin 300170,China;Tianjin Key Laboratory of Coast Geological Processes and Environmental Safety,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心(华北地质科技创新中心),天津300170 [2]天津市海岸带地质过程与环境安全重点实验室,天津300170

出　　处：《华北地质》2024年第2期62-72,共11页North China Geology

基　　金：中国地质调查项目“内蒙古内陆河流域水文地质与水资源调查监测(DD20230431)”;“海河北系水文地质与水资源调查监测(DD20230426)”。

摘　　要：【研究目的】为提升对内蒙古内陆河流域水文地质和地下水资源的认知程度,提高地下水资源利用效率,减少地质环境问题。【研究方法】本文以内蒙古内陆河流域为主要工作区,查明了该流域的补径排特征及水文地质条件,收集并整理了该流域近20年来的气象及地下水开发利用等相关资料,更新了地下水资源评价相关水文地质参数,对该流域地下水资源补排项进行汇总分析,对流域内山丘区和平原区分别采用排泄量法和补给量法进行地下水资源评价。同时全面论述了该流域地下水动态变化特征,并探讨了与地下水相关的湖泊萎缩、土地荒漠化等生态地质环境问题。【研究结果】计算得出内陆河流域地下水资源总量为37.94亿m^(3),年际上坝上地区浅层地下水位大致经历了先升高后降低的总趋势,地下水位年内总体呈现周期性波动的趋势,受地下水位影响流域内湖泊萎缩严重,沙质荒漠化面积减小,而盐碱质荒漠化逐渐加剧。【结论】该研究为该区水资源的可持续开发利用与生态环境保护提供了基础资料和科学依据。This paper is the result of the evaluation of groundwater resources and analysis of geological environment problems.[Objective]In order to improve the understanding of hydrogeology and groundwater resources in Inner Mongolia inland river basin,improve the utilization efficiency of groundwater resources and reduce the geological environment problems.[Methods]Taking In‐ner Mongolia Inland River Basin as the main work area,this paper identified the drainage characteristics and hydrogeological conditions of the basin,collected and sorted out the meteorological and groundwater development and utilization data of the basin in the past 20 years,updated the hydrogeological parameters related to groundwater resource evaluation,and summarized and analyzed the drainage items of groundwater resources in the basin.The drainage method and recharge method were used to evaluate groundwater resources in hilly and plain areas.At the same time,the characteristics of groundwater dynamic change in the basin are discussed comprehensively,and the ecological and geological environment problems related to groundwater such as lake shrinking and land de‐sertification are discussed.[Results]It is calculated that the total groundwater resources in the inland river basin are 3.794 billion m^(3).The shallow groundwater level in the upper Bashang area generally experiences a general trend of first rising and then decreasing,and the groundwater level generally presents a cyclical trend during the year.Affected by the groundwater level,the lakes in the basin shrink seriously,the sandy desertification area decreases,and the saline-alkali desertification gradually increases.[Conclusions]This study provides basic data and scientific basis for sustainable development and utilization of water resources and ecological environment protection in this area.

关 键 词：内蒙古内陆河流域 地下水资源量 地下水动态特征 地质环境问题 

分 类 号：P641.8[天文地球—地质矿产勘探]