摘要
湟水河流域是青海省人口分布最为密集的地区,水资源应急保障能力对地区繁荣发展至关重要。文章以湟水河流域引胜沟为例,探讨湟水河流域典型人类聚居区地下水资源的应急保障能力。研究综合水文地质测绘、原位试验、动态长观等技术手段,采用地下水均衡分析与流域地下水流数值模拟,评价引胜沟的地下水天然资源量和允许开采量,提出了应急水源开采方案,并对应急水源开采后的水文环境影响进行预测。结果表明,引胜沟地下水稳定供水的可开采资源量为0.60×10^(4)m^(3)/d。在1个月、3个月、6个月的地下水应急供水周期条件下,引胜沟地下水资源的可供水量分别可达到3.5×10^(4)m^(3)/d、2.5×10^(4)m^(3)/d、1.5×10^(4)m^(3)/d。地下水应急开采会对地下水环境产生一定影响,但停采后地下水位在210~330天内可完全恢复,应急开采对地下水环境的长期影响有限,地下水资源作为区域应急水源具有较强保障能力。
The Huangshui River Watershed is the most densely populated area in Qinghai Province,and the emergency guarantee capacity of water resources is highly crucial for the region's prosperity and development.Taking the Yinshenggou in the Huangshui River Watershed as an example,this paper explores the emergency guarantee capacity of groundwater resources in typical human settlements.The study integrates techniques including hydrogeological mapping,in-situ experiments,and dynamic long-term observations.Groundwater balance analysis and groundwater flow numerical simulation in watershed were employed to assess the natural resource and allowable extraction of groundwater in Yinshenggou.Predictions were made regarding the hydrological environmental impact after emergency extraction.It is indicated that the stable extractable groundwater resource in Yinshenggou is 0.60×10^(4)m^(3)/d.Under emergency supply conditions for 1 month,3 months,and 6 months,the available groundwater supply can reach 3.5×10^(4)m^(3)/d,2.5×10^(4)m^(3)/d,and 1.5×10^(4)m^(3)/d,respectively.Emergency groundwater extraction has some impact on the groundwater environment,but groundwater levels can fully recover within 210 to 330 days after cessation.Emergency groundwater extraction has limited long-term effects on the groundwater environment,highlighting the strong safeguarding capacity of groundwater resources as a regional emergency water source.
作者
袁有靖
彭红明
肖勇
雷玉德
徐得臻
袁杰
王枥伟
YUAN Youjing;PENG Hongming;XIAO Yong;LEI Yude;XU Dezhen;YUAN Jie;WANG Liwei(Key Laboratory of Environmental Geology of Qinghai Province,Xining,810007,China;Qinghai Bureau of Environmental Geology Exploration,Xining,810007,China;Qinghai 906 Engineering Survey and Design Institute Co.,Ltd.,Xining,810007,China;Faculty of Geosciences and Engineering,Southwest Jiaotong University,Chengdu,611756,China;School of Geographical Science,Qinghai Normal University,Xining,810008,China)
出处
《盐湖研究》
2025年第1期48-56,共9页
Journal of Salt Lake Research
基金
国家自然科学基金项目(42007183)
青藏高原河谷型城市地质环境风险评价与示范成果集成(2023-KJ-13)
青海省海东市(平安区、乐都区)城市地质调查评价(2022012023sh003)。
关键词
湟水河
地下水资源
数值模拟
允许开采量
Huangshui River
Groundwater resources
Numerical simulation
Allowable extraction
