郑州市水系连通的城市化响应研究

发布时间：2018-07-03 20:09

本文选题：城市化 + 水系连通功能　；参考：《郑州大学》2014年硕士论文

【摘要】：河湖水系是水资源的载体，是生态环境的重要组成部分，是经济社会发展的重要支撑。近年来，随着城市化进程的加快，一些次要的、非干流河流不断被渠系化和人工化，这使得我国河网水系结构单一化和主干化的趋势越来越明显，并由此造成了洪水宣泄不畅、生态环境恶化等次生环境问题的频频出现。针对严峻的形势，水利部陈雷部长提出了河湖水系连通的新理念，目前河湖水系连通作为一个新形势下的治水方略已经受到高度重视，因此开展城市化下河湖水系连通形态和功能的研究具有重要的意义。郑州市地跨黄河、淮河两大流域，自20世纪80年代开始了城市化进程，为了争夺有限的土地资源，大量的河道被侵占，使得水面率大幅度的降低。尤其是近几年来，城市化发展的加剧使得郑州市的水系形态和功能发生了变化，河网的单一化趋势最终导致了水系调蓄功能的下降。因此，研究城市化对河湖水系连通形态和功能的影响，揭示水系连通形态和连通功能之间的关系，对于管理部门开展郑州市水系网络重建和恢复工作具有重要的意义。本文通过研究国内外关于水系连通的概念、水系连通功能和形态表征指标等相关内容，分别对以下内容进行了研究与分析：（1）通过深入分析和研究郑州市历史水系演变过程，总结影响水系变迁的历史因素，为城市化对郑州市河流水系的影响研究奠定基础。（2）构建了一套指标体系来定量分析城市化对水系连通形态格局的影响。结合景观生态学等学科构建一套指标体系，用于评价区域的水系连通形态格局，同时运用ENVI软件对郑州市的水系网络图进行提取，进一步分析城市化对郑州市水系连通形态格局的影响。（3）构建了一套指标体系来定量分析城市化对水系连通功能的影响。从自然功能和社会功能两个方面构建了用于评价水系连通功能的指标体系和评价标准，采用集对分析方法评价不同时期郑州市的水系连通功能状况。（4）基于统计学方法分析水系连通功能指标与水系连通形态格局指标之间的相关关系，初步确定基于郑州市未来水系功能定位的水系连通形态指标阈值。
[Abstract]:River and lake water system is the carrier of water resources, the important component of ecological environment and the important support of economic and social development. In recent years, with the acceleration of urbanization, some secondary, non-mainstream rivers have been continuously converted into canal systems and artificial ones, which makes the trend of river network structure single and main in our country more and more obvious, resulting in the flood drainage is not smooth. Environmental degradation and other secondary environmental problems frequently appear. In view of the severe situation, Minister Chen Lei of the Ministry of Water Resources has put forward a new concept of river and lake water system connectivity. At present, river and lake water system connectivity as a new situation of water control strategy has been attached great importance to. Therefore, it is of great significance to study the connected forms and functions of rivers and lakes under urbanization. Zhengzhou City, the Yellow River and the Huaihe River basin, began the urbanization process in the 1980s. In order to compete for limited land resources, a large number of river channels were occupied, resulting in a large reduction in the water surface rate. Especially in recent years, with the development of urbanization, the form and function of water system in Zhengzhou City have changed, and the trend of river network simplification has resulted in the decline of water system regulation and storage function. Therefore, it is of great significance for the management department to study the influence of urbanization on the connected form and function of river and lake system, and to reveal the relationship between the connected form and the connected function of river system, which is of great significance for the management department to carry out the reconstruction and restoration of water system network in Zhengzhou City. In this paper, the concept of water system connectivity, the function of water system connectivity and the index of morphological characterization are studied. The following contents are studied and analyzed: (1) through in-depth analysis and research on the evolution process of Zhengzhou's historical water system, the historical factors that affect the evolution of water system are summarized. It lays a foundation for the study of the influence of urbanization on the river system in Zhengzhou. (2) A set of index system is constructed to quantitatively analyze the influence of urbanization on the pattern of water system connectivity. In combination with landscape ecology and other disciplines, a set of indicators system is constructed to evaluate the pattern of water system connectivity in the region, and the network map of water system in Zhengzhou is extracted by using ENVI software. The influence of urbanization on the connectivity pattern of water system in Zhengzhou is further analyzed. (3) A set of index system is constructed to quantitatively analyze the influence of urbanization on the connectivity of water system. The index system and evaluation criteria for evaluating the connectivity function of water system are constructed from the two aspects of natural function and social function. Set pair analysis was used to evaluate the water system connectivity in Zhengzhou City in different periods. (4) based on the statistical method, the correlation between the water system connectivity function index and the water system connectivity pattern index was analyzed. The index threshold of water system connectivity based on the function location of future water system in Zhengzhou City was preliminarily determined.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV213

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