基于GMS对河湖连通区域水环境影响研究
发布时间：2018-11-18 14:18
【摘要】：水是生命之源、生产之要、生态之基。党的“十八大”明确提出推进生态文明,建设美丽中国,实现中华民族永续发展。吉林省西部地区河湖连通工程规划是根据经济社会发展的需要,结合地形特征及水资源条件编制的开发利用雨洪资源和防治水害的总体规划。根据河湖连通项目规划的特点,结合所在区域的水环境特征,本文主要以区域生态环境、地表水、地下水、水资源、水文情势等进行水环境影响分析。按照国家现行有关法律法规的规定,在对松原市、白城市以及农安县规划区域水环境调查分析基础上,以现状和零方案分析为背景,通过单项标准指数法和完全混合模型评价地表水水质情况,通过对地下水动态变化分析,采用地下水数值模拟技术,建立地下水数学模型,通过GMS软件进行求解,预测项目实施前后地下水水位的变化,对比得出本项目对于区域地下水环境的影响。评判河湖连通工程规划的协调性及环境制约性因素、环境合理性,客观评判规划实施对区域水环境的总体效益和可能存在的不利影响,重点关注敏感与限制因素,提出建议。结果表明西部河湖连通工程规划在带来巨大生态效益的同时,也将对引水口下游水文情势、水质和水生态产生一定不利影响,而且存在加重规划区局部地区次生盐渍化的风险。引水后各控制断面流量、水位均有所下降,但下降幅度较小,影响可以接受。规划工程引水使得下游水资源量略有减少,对取水口下游河段水质有轻微不利影响,但基本不会改变水质类别。规划工程运行引蓄洪水资源引起引水口下游水文情势变化可能对鱼类产卵及鱼卵孵化形成一定影响。引水渠道和受水泡沼部分水量渗漏补给地下水,使泡沼周围地下水位抬升,加剧盐分向地表迁移,在局部地区存在次生盐渍化的风险。各规划工程在施工期也将对生态环境带来一些不利影响,但这种影响是暂时和有限的,在施工结束后影响随之消失。通过对西部河湖连通工程规划的水环境影响分析,从水环境角度总体评价合理可行。
[Abstract]:Water is the source of life, production, ecological basis. The 18th National Congress of the Party clearly proposed to promote ecological civilization, build a beautiful China, and realize the sustainable development of the Chinese nation. According to the needs of economic and social development, the planning of river and lake connectivity project in western Jilin Province is a general plan for the development and utilization of rain and flood resources and the prevention and control of water hazards according to the characteristics of topography and water resources. According to the characteristics of river and lake connection project planning and the characteristics of water environment in the region, this paper analyzes the water environment impact mainly on the regional ecological environment, surface water, groundwater, water resources, hydrological situation and so on. In accordance with the relevant national laws and regulations, and on the basis of the investigation and analysis of the water environment in the planning areas of Songyuan, Baicheng and Nong'an counties, the background is the present situation and the zero-plan analysis. The surface water quality is evaluated by single standard index method and complete mixed model. By analyzing the dynamic change of groundwater, adopting the technique of numerical simulation of groundwater, the mathematical model of groundwater is established and solved by GMS software. The change of groundwater level before and after the implementation of the project is predicted, and the effects of the project on the regional groundwater environment are compared. This paper evaluates the coordination and environmental constraints of the river and lake connection engineering planning, environmental rationality, the objective evaluation of the overall benefits and possible adverse effects of the implementation of the planning on the regional water environment, focuses on the sensitive and restrictive factors, and puts forward some suggestions. The results show that the planning of the western river and lake connection project will bring huge ecological benefits, but also will have some adverse effects on the hydrological situation, water quality and water ecology of the lower reaches of the diversion, and there is a risk of aggravating the secondary salinization in some areas of the planning area. After water diversion, the discharge and water level of each controlled section are all decreased, but the extent of decrease is relatively small, so the influence is acceptable. The amount of water resources in the lower reaches is slightly reduced by the project diversion, which has a slight adverse effect on the water quality of the lower reaches of the water intake, but basically will not change the water quality category. The change of the hydrological situation in the downstream of the diversion channel caused by the flood diversion water resources in the planning project may affect the spawning and hatching of fish eggs to some extent. Groundwater is recharged by leakage of water diversion channel and part of water in blistering marsh, which elevates groundwater level around bubble marsh, intensifies salt migration to the surface, and risks secondary salinization in local area. Each planning project will also bring some adverse effects on the ecological environment during the construction period, but this impact is temporary and limited, and the impact will disappear after the construction. Through the analysis of the water environment impact of the western river and lake connection project planning, the overall evaluation is reasonable and feasible from the point of view of the water environment.
【学位授予单位】：华北水利水电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TV213.4
本文编号：2340266
[Abstract]:Water is the source of life, production, ecological basis. The 18th National Congress of the Party clearly proposed to promote ecological civilization, build a beautiful China, and realize the sustainable development of the Chinese nation. According to the needs of economic and social development, the planning of river and lake connectivity project in western Jilin Province is a general plan for the development and utilization of rain and flood resources and the prevention and control of water hazards according to the characteristics of topography and water resources. According to the characteristics of river and lake connection project planning and the characteristics of water environment in the region, this paper analyzes the water environment impact mainly on the regional ecological environment, surface water, groundwater, water resources, hydrological situation and so on. In accordance with the relevant national laws and regulations, and on the basis of the investigation and analysis of the water environment in the planning areas of Songyuan, Baicheng and Nong'an counties, the background is the present situation and the zero-plan analysis. The surface water quality is evaluated by single standard index method and complete mixed model. By analyzing the dynamic change of groundwater, adopting the technique of numerical simulation of groundwater, the mathematical model of groundwater is established and solved by GMS software. The change of groundwater level before and after the implementation of the project is predicted, and the effects of the project on the regional groundwater environment are compared. This paper evaluates the coordination and environmental constraints of the river and lake connection engineering planning, environmental rationality, the objective evaluation of the overall benefits and possible adverse effects of the implementation of the planning on the regional water environment, focuses on the sensitive and restrictive factors, and puts forward some suggestions. The results show that the planning of the western river and lake connection project will bring huge ecological benefits, but also will have some adverse effects on the hydrological situation, water quality and water ecology of the lower reaches of the diversion, and there is a risk of aggravating the secondary salinization in some areas of the planning area. After water diversion, the discharge and water level of each controlled section are all decreased, but the extent of decrease is relatively small, so the influence is acceptable. The amount of water resources in the lower reaches is slightly reduced by the project diversion, which has a slight adverse effect on the water quality of the lower reaches of the water intake, but basically will not change the water quality category. The change of the hydrological situation in the downstream of the diversion channel caused by the flood diversion water resources in the planning project may affect the spawning and hatching of fish eggs to some extent. Groundwater is recharged by leakage of water diversion channel and part of water in blistering marsh, which elevates groundwater level around bubble marsh, intensifies salt migration to the surface, and risks secondary salinization in local area. Each planning project will also bring some adverse effects on the ecological environment during the construction period, but this impact is temporary and limited, and the impact will disappear after the construction. Through the analysis of the water environment impact of the western river and lake connection project planning, the overall evaluation is reasonable and feasible from the point of view of the water environment.
【学位授予单位】：华北水利水电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TV213.4
【参考文献】
相关期刊论文 前7条
1 李立军;王延亮;胡婧敏;马力;赵彦宁;陈初雨;王怀远;宇庆华;孙春;;GMS在地下水环境影响评价中的应用[J];吉林地质;2014年04期
2 张力春;孙香泰;;敖头水库库尾石河村浸没影响预测及评价[J];黑龙江水利科技;2012年10期
3 李宗礼;郝秀平;王中根;刘晓洁;李浩;;河湖水系连通分类体系探讨[J];自然资源学报;2011年11期
4 陈雷;;关于几个重大水利问题的思考——在全国水利规划计划工作会议上的讲话[J];中国水利;2010年04期
5 曲德双;东迎欣;徐广军;;尼尔基灌区开发对土壤盐渍化的影响预测[J];黑龙江水利科技;2007年06期
6 孙晓梅;曲延光;;莫莫格湿地生态环境需水量研究[J];东北水利水电;2007年01期
7 崔亚莉,邵景力,韩双平;西北地区地下水的地质生态环境调节作用研究[J];地学前缘;2001年01期
，本文编号：2340266
本文链接：https://www.wllwen.com/kejilunwen/shuiwenshuili/2340266.html
