福州市城市生态廊道景观结构的研究

发布时间：2018-03-08 18:45

本文选题：城市生态　切入点：景观　出处：《福建师范大学》2015年硕士论文　论文类型：学位论文

【摘要】：城市生态廊道作为城市景观绿地系统的一部分,现今已成为景观生态学研究的一个重要领域,构建良好的城市生态廊道不仅能维持城市生态系统的稳定,还能为市民提供良好的绿化游憩场所。本文首先从生态廊道的研究背景出发,阐述了城市环境问题逐步恶化急需整治；其次,简述了生态廊道的原理、功能和分类等基本概念,为本文研究提供了理论依据；进而通过宏观结合中观尺度分析的方法对福州市中心城区的城市生态廊道景观结构进行了一定研究。本文研究从宏观角度出发,利用地理信息软件对福州市中心城区进行景观结构分析,通过城市生态廊道的长度、面积、密度和建成率的计算,结果表明了福州市生态廊道建设存在的问题和不足。再由中观尺度对城区生态廊道的实地建设情况进行考察,发现道路型和河流型生态廊道普遍宽度不足,难以形成内部生境；绿地斑块破碎化明显,道路廊道与其连通性较差；景观植被配置不合理,包括如何分配乔灌草本、立体空间结构差等问题。根据福州市规划局相关文件及实地考察,同时结合福州气候风向特点,规划福州城市生态廊道网络系统,提出“一屏三带、两环七廊,多点多道”的具体优化构建方案(以北面山体为屏障,两江沿岸为城市生态廊道轴心骨,二环和三环路为框架,利用城市道路和内河河道将各破碎绿地斑块串联,形成城市生态廊道网络系统),并根据区域用地状况及功能需求提出具体优化方案。最后通过生态廊道的合理走向布局,将外界自然风通过绿色廊道引入城区,利用道路型生态廊道和河流型生态廊道结合植被配置,实现城市小气候的良好循环,为构建福州城市风道提供理论依据。力争达到减轻城市热岛效应、吹散污染物、净化城市空气的生态作用。
[Abstract]:As a part of urban landscape green space system, urban ecological corridor has become an important field of landscape ecology research. Constructing a good urban ecological corridor can not only maintain the stability of urban ecological system. This paper, based on the research background of ecological corridor, expounds that the deterioration of urban environmental problems is in urgent need of remediation; secondly, the basic concepts of ecological corridor, such as principle, function and classification, are briefly described. This paper provides a theoretical basis for the study, and then studies the urban ecological corridor landscape structure in the central urban area of Fuzhou through the method of macroscopical and mesoscale analysis. Based on the analysis of landscape structure in central urban area of Fuzhou by using geographic information software, the length, area, density and completion rate of urban ecological corridor are calculated. The results show that there are some problems and shortcomings in ecological corridor construction in Fuzhou City. After investigating the actual construction of ecological corridor in urban area at meso scale, it is found that the width of ecological corridor of road type and river type is insufficient, and it is difficult to form internal habitat. The patch fragmentation of green space is obvious, the road corridor and its connectivity are poor, the allocation of landscape vegetation is unreasonable, including how to allocate the tree and shrub grass, the spatial structure is poor, and so on. According to the relevant documents of Fuzhou Planning Bureau and field investigation, At the same time, according to the characteristics of Fuzhou climate and wind direction, the network system of Fuzhou city ecological corridor is planned, and the concrete optimized construction scheme of "one screen and three belts, two rings and seven corridors, many points and many paths" is put forward (taking the northern mountain body as the barrier). The river along the river is the axis of urban ecological corridor, the second ring and the third ring road are used as the frame, and the broken green patches are connected in series by the city road and river channel. The urban ecological corridor network system is formed, and the concrete optimization scheme is put forward according to the regional land use condition and the function demand. Finally, through the rational layout of the ecological corridor, the natural wind is introduced into the urban area through the green corridor. Using the combination of road ecological corridor and river ecological corridor to realize the good circulation of urban microclimate, to provide the theoretical basis for the construction of Fuzhou urban wind tunnel, to reduce the urban heat island effect and to blow away pollutants. The ecological function of purifying urban air.
【学位授予单位】：福建师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU985.2;TU984.1

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