以生态修复技术为基础的城市人工湖景观设计研究

发布时间：2018-01-23 00:31

本文关键词： 生态修复人工湖水体水陆交错带近水陆地　出处：《四川农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着城市的发展,人们对于自然环境的侵蚀力度也在不断加强,城市人工景观湖由于流动性差,封闭性强,也受到了严重的污染。据调查,人工湖水体多为劣V类水,氮磷含量严重超标,大部分人工湖发生了藻类侵占水面的现象,严重影响了景观效果。人们一般通过单一的物理修复法、化学修复法治理受污染的水体,不仅耗费大量人力物力,且治标不治本,水体持续污染。生态修复法,则可以通过恢复人工湖水体生态系统,使人工湖实现自我净化,自我维持,从根本上解决人工湖水体污染问题,因此,人工湖的水体生态修复研究是及其必要的。本文通过文献查阅与实地考察法,研究城市人工湖景观设计与水体生态维持中存在的问题,总结出以生态修复法为基础的城市人工湖景观设计流程体系,结合理论体系到成都温江区光华公园的碧落湖设计中,得出以下结论：(1)本文通过分析对比水体常用的化学修复、物理修复、生物修复、生态修复4种水体修复法,总结各种水体修复法适用的污染水体,其中以生态修复最能从本质上解决水体污染问题,具有更大的应用潜力；在人工湖的设计中应以生态修复法为主,把4种水体修复法综合的运用在人工湖的设计中,使人工湖避免先污染后治理,全面的从本质上防御污染,实现防御为主,治理为辅的生态设计。(2)对人工湖进行生态分区设计,将人工湖划分为水体、水陆交错带、近水陆地3个区域,以“双防一治”为主题,使人工湖形成水体的自净治理系统,水陆交错带的补水过滤防护系统,近水陆地的雨水渗透、收集防护系统,使各区域充分的发挥其生态功效,达到水体防治结合,实现水体自我维持。(3)对人工湖水生植物的选择上,坚持具体问题具体分析,针对人工湖预计污染物质,注重植物的生态修复功能,通过总结归纳出我国常用水生植物生态功能表,结合各种植物的景观效果与生态功能,为人工湖生态分区植物的选择提供参考。(4)在光华公园碧落湖的设计中,采用以生态修复技术为基础的城市人工湖景观设计方法,以生态修复法为主,贯穿于人工湖的水体、水陆交错带、近水陆地,以物理修复法为辅,应用于水体的污染物沉淀、补水过滤等区域,系统的阐述了设计过程。
[Abstract]:With the development of the city, the intensity of people's erosion of the natural environment is also being strengthened, the artificial landscape lake of the city is polluted seriously because of its poor mobility and strong closure. Most of the artificial lake water is substandard V water, the content of nitrogen and phosphorus exceeds the standard seriously, and the algae encroach on the water surface in most artificial lakes, which seriously affects the landscape effect. People usually use a single physical restoration method. Chemical remediation method not only consumes a lot of manpower and material resources, but also does not cure the symptoms, and the water continues to be polluted. The ecological restoration method can be used to restore the water ecosystem of artificial lake. Making artificial lake realize self-purification, self-maintenance, fundamentally solve the problem of water pollution of artificial lake, therefore, it is necessary to study the ecological restoration of artificial lake. The problems in urban artificial lake landscape design and water ecological maintenance are studied, and the process system of urban artificial lake landscape design based on ecological restoration method is summarized. Combining the theoretical system to the design of Biluohu Lake in Guanghua Park in Wenjiang District, Chengdu, the following conclusions are drawn: 1) by analyzing and comparing the chemical, physical and bioremediation commonly used in the water body. There are four kinds of water body restoration methods for ecological restoration, and the pollution water bodies suitable for various water restoration methods are summarized. Ecological restoration is the most effective way to solve the water pollution problem in essence, and it has more application potential. In the artificial lake design, the ecological restoration method should be the main method, the four kinds of water body restoration method should be comprehensively applied in the artificial lake design, so that the artificial lake can avoid the pollution first and then control it, and prevent the pollution completely in essence. The artificial lake is divided into three areas: water body, water and land ecotone, and near water and land, with the theme of "double prevention and one treatment". Make artificial lake form water body self-purification control system, water and land ecotone water filtration protection system, near the water land Rain Water infiltration, collection and protection system, so that each region to give full play to its ecological efficacy. To achieve the combination of water prevention and control, to achieve water self-maintenance. 3) on the selection of artificial lake aquatic plants, adhere to the specific analysis of specific problems, according to the artificial lake to predict pollution substances, pay attention to the ecological restoration of plants. Through summing up and summing up the ecological function list of aquatic plants commonly used in our country, combined with the landscape effect and ecological function of various plants. In the design of Biluohu Lake in Guanghua Park, the urban artificial lake landscape design method based on ecological restoration technology is adopted, and ecological restoration is the main method. The design process is systematically described in the water body of artificial lake, water and land ecotone, near water and land, supplemented by physical remediation method, and applied to pollutant precipitation and water filtration of water body.
【学位授予单位】：四川农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X171.4;TU984.18

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