岩溶地下水系统调蓄功能研究
发布时间：2018-11-03 19:06
【摘要】：自然条件下西南岩溶地区降水量充沛,但由于有特殊的地质环境,使该地区地表滞水能力很差,降水迅速渗入地下,造成地表缺水,地下水很丰富的特殊现象,因此岩溶地区生活和生产用水主要取自地下。但在西南地区只有极少数作为科研对象的地下水系统才有长期观测资料,大部分地下水系统没有详细的资料,且传统的评价方法不适合处于规划设计阶段的地下水系统,因此建立一种在规划设计阶段对自然条件下的地下水系统调蓄功能进行评价的模型是很有必要的。岩溶地下水系统调蓄功能评价涉及复杂的影响因子体系,单个因子所包含的信息有限,无法全面判断系统的调蓄功能。本文通过对地下水系统的补给条件、蓄水条件、给水条件等相关条件进行综合考虑,根据一定的原则筛选出岩溶地下水系统调蓄功能的评价因子;利用层次分析法(AHP)计算各因子权重值,通过专家打分确定各评价因子评分体系,建立评价因子体系;最终选用加乘混合合成法对数据进行综合计算。岩溶地下水系统调蓄功能本文分三个等级:优、良、差;选取前人已勘察评价过的地下水系统,利用所建立模型综合评价,根据综合评价值确定调蓄功能等级值域,并建立岩溶地下水系统调蓄功能等级标准。该模型综合考虑了地下水资源的形成、分布、储存和运移特征,不同于传统的定量评价的思维,从水文学原理的角度,综合考虑地球表层因素和水文、生态环境、气候等条件对岩溶水资源的影响,建立模型对岩溶地下水系统调蓄功能进行综合评价。本文得出主要结论:1、确定了研究岩溶地下水系统调蓄功能的评价因子;2、建立了评分体系和综合评价模型;3、得出岩溶地下水系统调蓄功能等级标准;4、模型经检验适用于岩溶区地下水系统。
[Abstract]:There is plenty of precipitation in the karst area of southwest China under natural conditions, but because of the special geological environment, the surface water retention capacity in this area is very poor, and the precipitation rapidly seeps into the ground, resulting in the special phenomenon that the surface is short of water and the groundwater is very rich. Therefore, water for life and production in karst areas is mainly taken from underground. However, in southwest China, only a few groundwater systems, which are the objects of scientific research, have long-term observation data. Most groundwater systems do not have detailed data, and the traditional evaluation methods are not suitable for groundwater systems in the planning and design stage. Therefore, it is necessary to establish a model to evaluate the regulation and storage function of groundwater system under natural conditions in the planning and design stage. The evaluation of regulation and storage function of karst groundwater system involves complex influence factor system, and the information contained by single factor is limited, so it is impossible to judge the regulation and storage function of the system. Based on the comprehensive consideration of the recharge condition, water storage condition and water supply condition of the groundwater system, the evaluation factors of the regulation and storage function of the karst groundwater system are selected according to certain principles. The weight value of each factor is calculated by (AHP), and the evaluation factor system is established by the expert scoring system. Finally, the data are synthetically calculated by adding and multiplying the mixed composition method. The regulation and storage function of karst groundwater system is divided into three levels: excellent, good and poor; The groundwater system which has been surveyed and evaluated by predecessors is selected. The comprehensive evaluation of the established model is used to determine the range of regulation and storage function grade according to the comprehensive evaluation value and the standard of regulating and storing function grade of karst groundwater system is established. The model takes into account the formation, distribution, storage and migration characteristics of groundwater resources, which is different from the traditional thinking of quantitative evaluation. From the perspective of hydrology, the model considers the surface factors of the earth, hydrology and ecological environment. The influence of climate and other conditions on karst water resources is studied. A model is established to evaluate the regulation and storage function of karst groundwater system. The main conclusions of this paper are as follows: 1, the evaluation factors for studying the regulation and storage function of karst groundwater system are determined; 2, the scoring system and comprehensive evaluation model are established; 3, the criteria for regulating and storing function of karst groundwater system are obtained. 4. The model is suitable for groundwater system in karst area.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P641.134
本文编号：2308698
[Abstract]:There is plenty of precipitation in the karst area of southwest China under natural conditions, but because of the special geological environment, the surface water retention capacity in this area is very poor, and the precipitation rapidly seeps into the ground, resulting in the special phenomenon that the surface is short of water and the groundwater is very rich. Therefore, water for life and production in karst areas is mainly taken from underground. However, in southwest China, only a few groundwater systems, which are the objects of scientific research, have long-term observation data. Most groundwater systems do not have detailed data, and the traditional evaluation methods are not suitable for groundwater systems in the planning and design stage. Therefore, it is necessary to establish a model to evaluate the regulation and storage function of groundwater system under natural conditions in the planning and design stage. The evaluation of regulation and storage function of karst groundwater system involves complex influence factor system, and the information contained by single factor is limited, so it is impossible to judge the regulation and storage function of the system. Based on the comprehensive consideration of the recharge condition, water storage condition and water supply condition of the groundwater system, the evaluation factors of the regulation and storage function of the karst groundwater system are selected according to certain principles. The weight value of each factor is calculated by (AHP), and the evaluation factor system is established by the expert scoring system. Finally, the data are synthetically calculated by adding and multiplying the mixed composition method. The regulation and storage function of karst groundwater system is divided into three levels: excellent, good and poor; The groundwater system which has been surveyed and evaluated by predecessors is selected. The comprehensive evaluation of the established model is used to determine the range of regulation and storage function grade according to the comprehensive evaluation value and the standard of regulating and storing function grade of karst groundwater system is established. The model takes into account the formation, distribution, storage and migration characteristics of groundwater resources, which is different from the traditional thinking of quantitative evaluation. From the perspective of hydrology, the model considers the surface factors of the earth, hydrology and ecological environment. The influence of climate and other conditions on karst water resources is studied. A model is established to evaluate the regulation and storage function of karst groundwater system. The main conclusions of this paper are as follows: 1, the evaluation factors for studying the regulation and storage function of karst groundwater system are determined; 2, the scoring system and comprehensive evaluation model are established; 3, the criteria for regulating and storing function of karst groundwater system are obtained. 4. The model is suitable for groundwater system in karst area.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P641.134
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1 王衍斐;基于GIS的义乌市浅层地温能评价模型研究[D];南京师范大学;2012年
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