【作者】 米日姑·买买提；

【导师】 海米提·依米提；

【作者基本信息】 新疆大学 ， 自然地理学， 2010， 硕士

【摘要】 地下水既是一种宝贵的自然资源,又是环境的基本要素。当今世界所面临的“人口、资源、环境”三大问题,都直接或间接地与地下水资源有关。随着工农业生产的发展和人民生活水平的提高,对地下水资源评价与管理提出了更高的要求。二十世纪七十年代以来,数值模拟技术在地下水渗流问题中得到了广泛应用,成为人们揭示地下水运动规律和资源评价与管理中必不可少的工具。本论文在系统分析地下水数值模拟方法的基础上,运用有限差分,结合研究区地下水含水介质系统,采用二维非稳定流数学模型对该地下水系统进行了数值模拟,对研究区地下水动态变化进行了评价,为研究区今后的地下水资源评价与管理提供了一种有效的分析手段,为相同条件下的其它区域地下水资源的科学管理提供了有意义的参考。针对上述问题,本论文重点进行如下研究工作:充分搜集并系统整理前人在研究区内的地质及水文地质勘察成果,进行分析、整合处理。结合项目研究的目的,补充进行研究区综合性水文地质勘察工作,进一步查明灌区气候、水文、地形地貌、地质及水文地质特征,灌区地下水动态和地下水化学特征及其分布规律,宏观评价伊犁河谷水资源利用现状及地下水资源均衡状态。以系统理论和可持续发展观念为指导,运用现代水资源和水文地质理论方法以及计算机模拟技术,开展灌区地下水预测研究工作。利用较为成熟先进的三维可视化地下水分析计算软件GMS的Modflow和MT3D模块建立研究区地下水系统的数学摸型,分析预测研究区在现状和规划条件下的地下水运移规律。通过实地勘察和模型预测,对项目区开发规模方案下的地下水动态及其对环境影响,进行系统分析和评价,预测灌区在现状、规划条件下的水位,水质动态变化规律。并据此提出该项目区的盐碱地治理措施、建议以及水资源利用和生态环境保护策略。更多还原

【Abstract】 Groundwater is not only a kind of valuable natural resource but also the basic element of environment. Now the three problems that face us are "population, source, environment" which have the bearing with the groundwater resources directly and indirectly. With the development of industry and agriculture and the improving of standard of living, the higher demand on evaluation and management of the ground-water has been put forward. Since the 1970s, numerical simulation technology has been widely used in the problem of groundwater seepage, and has been a necessary tool to discover the movement rule of groundwater and to assess and manage the natural resources.On the basis of analyzing the numerical simulation methods of groundwater systematically and combining Jinan fissure-karst water system, the paper sets up the two-dimensional unsteady model by using the finite difference method , assess dynamic changes of groundwater in the study area. All conclusions we sum up in the paper provide efficient analysis method for the evaluation and management of groundwater resources of the Ili River Basin, and provide significant reference for the evaluation of scientific management of local groundwater resources. For the above issues, The central contents are as follows: Fully collect data or research results done by predecessors in the fields of geologic and hydro-geological surveying in different periods, in different walks of life, with different purpose and different precision, in this basin. And analyses data consistency, take probationary and integration treatment; Linking with the project, Carry out all-round hydro-geological reinforced surveying in the ID, further ascertain existing features such as climate, hydrology, topography and land feature, geologic and hydro-geologic in the ID, as well as find out groundwater dynamic feature and its water chemistry feature as well as what its distribution law is in the ID. Finally, it was macro assessed for water resources utilization status quo and groundwater equilibrium state in the Ili River ID.Taking systematic theory and sustainable development idea as direction, using modern water resources and hydro-geologic theory methodology as well as computer analogue technology, we can’t out. groundwater forecasting and research work in the ID. For groundwater analogue calculation of this time, we introduced more advanced Three-dimensional Visual Calculation Software–GMS, established math model of groundwater system in the study area, to forecast groundwater motion law and groundwater quality dynamic transformation law in the condition of existing and planning situation.Through field investigation and model forecasting, we made a systematic analyze am assessment to groundwater motion trend and its environment influence under the planning; development scale, forecasted groundwater motion law and groundwater quality dynamic transformation law in the condition of existing and planning situation. On the basis of the above studies, we put forward suggestions about saline-alkali soil improvement measures, and strategy for water resources utilization and eco-environment protection.更多还原