青海木里地区水文地质条件与水资源评价研究

发布时间：2018-03-28 16:11

本文选题：木里地区　切入点：水文地质条件　出处：《西安科技大学》2017年硕士论文

【摘要】：青藏高原地区水资源丰富,是我国最主要的水源地和全国生态安全的重要屏障。但近年来由于环境保护不足和利用水平低,青藏高原正面临着冰川退缩、雪线上升、湖泊萎缩干涸、河流径流量减小、断流,沼泽消失等生态问题,高原整体水生态水环境急剧恶化。青藏高原水资源的开发利用急需妥善处置。本文以青海省木里地区为例,在充分搜集已有成果资料的基础上,通过水文地质调查、水质分析等手段,运用内梅罗综合指数法、综合评分法等手段对研究区水文地质条件和水资源污染现状进行评价,基本查明研究区地下水的分布范围、埋藏和赋存条件以及不同含水岩组的岩性、富水性和水质特征等,确定断裂构造融区水位置,查明断裂构造融区水的水质、水量等特征,通过对不同断面水环境状况的对比,综合分析了本区地表水、地下水的水文地质、环境地质条件和污染源分布特征,并结合木里镇水源地规模、供水规划等具体情况,确定了木里镇的供水水源地,分析了当前该地区水资源开发利用现状及存在问题,并为下一步水环境保护提供建议。
[Abstract]:The Qinghai-Tibet Plateau is rich in water resources, which is the most important source of water and an important barrier to national ecological security. But in recent years, due to inadequate environmental protection and low utilization level, the Qinghai-Tibet Plateau is facing the retreat of glaciers and the rise of snow lines. The lake shrinks and dries up, the river runoff decreases, the river runoff decreases, the marshes disappear and the ecological water environment of the whole plateau deteriorates sharply. The exploitation and utilization of water resources in the Qinghai-Tibet Plateau are in urgent need of proper disposal. This paper takes the Muli area of Qinghai Province as an example. On the basis of fully collecting the existing achievements, by means of hydrogeological investigation and water quality analysis, the hydrogeological conditions and the status of water resources pollution in the study area are evaluated by means of Nemero comprehensive index method and comprehensive scoring method. Basically ascertaining the distribution range, burial and storage conditions of groundwater in the study area, lithology, water enrichment and water quality characteristics of different water-bearing rock groups, determining the location of water in the zone of fracture structure melting, ascertaining the characteristics of water quality and quantity of water in the zone of fracture structure melting, etc. By comparing the water environmental conditions of different sections, the hydrogeology, environmental geological conditions and pollution source distribution characteristics of surface water and groundwater in this area are comprehensively analyzed, and combined with the specific situation of water source scale and water supply planning in Muli Town, etc. The source of water supply in Muli Town is determined, the present situation and problems of water resources exploitation and utilization in this area are analyzed, and suggestions for the protection of water environment in the next step are provided.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P641

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