【作者】 李靖；

【导师】 贾亚男；

【作者基本信息】 西南大学 ， 第四纪地质学， 2011， 硕士

【摘要】 岩溶地下水作为岩溶环境系统的重要组成部分,一直以来都是岩溶环境科学重点研究的对象。由于岩溶地下水的特殊脆弱性,连同我国在内的世界各国都面临岩溶区环境破坏的危机。对于重庆而言,长期以来,自然地理条件的限制,导致工农业生产高度密集,生产、生活污水的过度排放以及土地的不合理利用都对岩溶水质造成了极大的破坏。本文以涪陵丛林乡岩溶槽谷区为研究区域,利用前人研究数据二次整理,同时查阅大量的中外文文献的基础上,结合地理信息系统的空间数据管理和空间分析功能,对涪陵丛林乡岩溶槽谷区地下水资源的总体评价进行了探索性研究。揭示研究区岩溶水的时空变化规律及其与人类不合理利用的内在关系,探讨了工农业生产对水质的影响,探讨了西南岩溶地区地下水合理开发利用的方法和对策,为保护岩溶地下水资源和人类活动的适度合理提供科学依据。首先,对评价区时间跨度二十余年来的水化学信息等基础数据进行分析处理。利用ArcGIS软件平台,通过地图跟踪数字化,得到涪陵丛林乡岩溶槽谷区矢量化地图,然后,以软件处理结果为基础,选取9项具有代表性的地下水环境质量指标,应用克里金插值方法生成单一指标预测图,由于特异值的存在将严重影响克里金插值的结果,结果值将偏离实际值,所以应当在插值前先剔除特异值。通过图层叠加,运用内梅罗综合指数法计算了地下水环境质量综合指数,对涪陵丛林乡岩溶槽谷区的地下水环境质量进行了综合评价,并运用GIS对人类活动因子与评价结果进行相关性研究。最后,提出了地下水资源保护和科学开发利用的对策和建议。更多还原

【Abstract】 As an important component of the karst environement system, kart groundwater has always been the key research topic in the science of karst environment.Because of the fragility of the karst groundwater, all the countries in the world, including China are faced with the crisis of environmental destruction in the karst aeras.As far as Chongqing is concerned, due to the intensive production in the industry and agriculture led by the slow economic growth and limited natural geographic conditions,excessive release of paroduction sewage and living sewage and unreasonable use of land, the karst water quality has been already greatly polluted. With Conglin karst ridge-trough at Fulin town in Chongqing as the study aera, based on the previous findings and Chinese and foreign literatures, this thesis is intended to make an exploratory research on the general evaluation of the groundwater resources in the Conglin karst ridge-trough at Fulin town by using the spatial data management and the function of spatial analysis.Firstly, it made an analysis of the basic data in the aera such as water chemistry.By using the ArcGIS software and the digital map, a vector map of the Conglin karst ridge-trough at Fulin town can be obtained. Then on the basis of the results handled by the software, the author chose nine representative indexes of the groundwater environment quality to form a prognostic map of a single index by the application of Kriging method. Afterwards, a comprehensive evaluation of groundwater environment quality in Conglin karst ridge-trough at Fulin town has been conducted by means of the overlay analysis and the composite index of the groundwater environment quality calculated by the Nemerow Pollution Index. Finally, the author brings forward the countermeasures and suggestions for the protection and scientific development and utilization of the groundwater resources.更多还原