耦合地下水与主体模型的黑河水—经济交互作用研究

发布时间：2018-05-28 12:19

本文选题：地下水模拟 + 地表-地下水耦合水　；参考：《清华大学》2015年硕士论文

【摘要】：位于我国西北地区的第二大内陆河黑河流域,发源于祁连山,流经青海省、甘肃省、内蒙古自治区,是我国具有极其重要地位与战略的内陆河流。但是由于其自然状况,地理条件,生态状况,水文状况以及综合治理方面都面临者严峻的挑战,黑河流域的水资源难以满足流域上中下游的用水,中游地区发达的农业,耗水性农作物为主要经济支柱,中下游极度干旱,甚至导致下游的断流,水事矛盾日益加重。各行政区矛盾日益明显,行政区域矛盾加深。中国政府终于在2000年8月开始推行实施国家分水方案,提出水资源调用的全新配置与水循环模式,但是对于问题没有完全解决。本文在分析黑河流域自然地理状况、社会经济情况等基础上,运用matlab和modflow进行黑河流域地表地下水耦合以及基于水交易时的主体模型搭建。进行地表水与地下水交互作用研究以及流域水-经济交互作用研究。充分耦合地表地下水的基础上,在建立流域主体模型进行水-经济交互作用研究,成功模拟出有无水交易时流域的埋深、开采量、用水量、径流量等指标,并对比其间相互关系,揭示流域有水交易情况下的流域整体的用水户用水与交易行为。水交易使得流域用水得到了重新的分布,下游埋深浅的用水户的开采量增加,用户用水量增加,上游反之。同时在有水交易发生的时候由于其用水效益不够高,上游用水户减少低效益用水,或通过水交易卖水获得最优的经济效益,在水交易发生的情况下,用水户总是从用水效益低向用水效益高的用户转移。这些规律将会对政府以及管理者提供决策支持与管理建议。
[Abstract]:Heihe River Basin, the second largest inland river in northwest China, originated in Qilian Mountains and flows through Qinghai Province, Gansu Province and Inner Mongolia Autonomous region. It is an inland river with an extremely important position and strategy in China. However, due to the severe challenges faced by the natural, geographical, ecological, hydrological and integrated management aspects, the water resources of the Heihe River Basin are difficult to meet the water use in the upper, middle and lower reaches of the basin, and the developed agriculture in the middle reaches of the basin. Water-consuming crops are the main economic pillar, and the extreme drought in the middle and lower reaches even leads to the downriver water cut off, and the contradiction of water matters becomes more and more serious. The contradictions between the administrative regions are becoming increasingly obvious and the contradictions in the administrative regions are deepening. The Chinese government finally began to implement the national water diversion scheme in August 2000 and put forward a new allocation and water circulation mode of water resources transfer but the problem has not been completely solved. Based on the analysis of the physical geography and social economic situation of Heihe River Basin, this paper uses matlab and modflow to construct the surface groundwater coupling model and the main body model based on the water transaction in Heihe River Basin. Surface water and groundwater interaction and watershed water-economy interaction are studied. On the basis of fully coupling surface groundwater, the main body model of river basin is established to study the interaction between water and economy, and the indexes of buried depth, exploitation amount, water consumption, runoff and so on, when there is no water transaction, are successfully simulated. By comparing the relationship between them, the paper reveals the water consumption and trade behavior of the whole watershed under the condition of water trading. Because of the water transaction, the water use in the basin is redistributed, the exploitation amount of the downstream water users with shallow depth is increased, the water consumption of the users is increased, and the upstream water consumption is reversed. At the same time, when there is a water transaction, because its water use efficiency is not high enough, the upstream water user reduces the low efficiency water consumption, or sells water through the water transaction to obtain the best economic benefit, in the case of water transaction, Water users always transfer from low water efficiency to high water use efficiency. These laws will provide decision-making support and management advice to governments and managers.
【学位授予单位】：清华大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TV213.4

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