淮河流域水系形态结构及连通性研究

发布时间：2018-04-25 01:01

本文选题：水系形态结构 + 水系连通性　；参考：《郑州大学》2017年硕士论文

【摘要】：随着当代社会和经济的迅猛发展,河湖水系的天然形态结构特征和连通性在越来越多的人类活动干扰下,逐步发生变化。加上越来越严峻的水资源形势,河湖水系连通作为新形势下一项关系到水资源分配格局、洪涝灾害风险、水生态环境的战略方针,是今后水资源治理和管理工作的重点。而淮河流域分布有天然、人工复杂交织的水系格局,历史上洪涝灾害不断发生、近年来水污染事态又频频严重,且全流域闸坝工程数量众多,这些对淮河流域的水系形成、形态结构演变过程、连通格局均会产生影响。本文以淮河流域作为研究区,开展人类活动干扰下的水系演变和河网连通性相关研究工作,具有一定的典型性,可为有关部门开展淮河流域水系建设工作提供理论支撑,为摸清自然规律和人类活动对水系形态结构和连通性的影响提供技术支持。主要研究内容如下:(1)通过相关文献的查阅和总结,分析得出影响淮河流域水系演变的主要因素,为接下来的研究工作奠定基础。(2)利用ArcGIS软件从DEM数据中提取淮河流域水系,并与实际水系图进行叠加、修正;基于分形理论,且充分考虑到人工水系的建设情况,对淮河流域13个水资源分区天然水系和人工水系的分形盒维数进行计算、分析;通过与景观生态学中表征水系形态结构的指标的相关性分析,对选取盒维数表征水系形态结构的合理性进行验证。(3)基于图论的相关知识,且充分考虑到流域闸坝工程的建设和调度情况,对淮河流域各水资源分区有无闸坝工程影响的水系连通度分别进行计算、分析;通过与景观生态学中表征水系连通性的指标的相关性分析,对选取基于图论的水系连通度表征水系连通程度的合理性进行验证。(4)运用SPSS软件,对基于分形理论的水系盒维数指标和基于图论的水系连通度指标间的内在联系进行初步相关性分析和总结。
[Abstract]:With the rapid development of modern society and economy, the natural morphological structure and connectivity of rivers and lakes have changed gradually under the interference of more and more human activities. In addition to the more and more severe water resources situation, as a new situation, the connection of rivers, lakes and rivers is the key to water resources management and management, which is related to the distribution pattern of water resources, the risk of flood disaster and the ecological environment of water resources. In the Huaihe River Basin, there is a natural, artificial and complicated water system pattern. The flood and waterlogging disasters have occurred continuously in history. In recent years, the situation of water pollution is frequently serious, and there are a large number of floodgate and dam projects in the whole basin, which have formed the water system of the Huaihe River Basin. The evolution of morphology and structure and the structure of connectivity will have an impact. In this paper, the Huaihe River Basin is taken as the study area, and the research work on the evolution of the river system and the connectivity of the river network under the disturbance of human activities is carried out, which is typical and can provide theoretical support for the relevant departments to carry out the construction of the river system in the Huaihe River Basin. It provides technical support for understanding the influence of natural laws and human activities on the structure and connectivity of water system. The main research contents are as follows: (1) by consulting and summarizing the relevant documents, the main factors affecting the evolution of the Huaihe River basin water system are obtained, which will lay the foundation for the following research work.) using ArcGIS software to extract the Huaihe river basin water system from the DEM data, Based on fractal theory and taking into account the construction of artificial water system, the fractal box dimension of natural and artificial water systems in 13 water resources zonation of Huaihe River basin is calculated and analyzed. Through the correlation analysis with the indicators of water system morphology in landscape ecology, the rationality of selecting box dimension to characterize the water system morphological structure is verified. The relevant knowledge based on graph theory is verified. Considering the construction and regulation of sluice dam project in Huaihe River basin, the connectivity of water system affected by sluice dam project in every water resources district of Huaihe River basin is calculated and analyzed respectively. Through the correlation analysis with the indicators of water system connectivity in landscape ecology, this paper verifies the rationality of selecting water system connectivity based on graph theory to represent the connectivity of water system. The software SPSS is used to verify the rationality of selecting the connectivity degree of water system based on graph theory. The relationship between the box dimension index of water system based on fractal theory and the connectivity index of water system based on graph theory is analyzed and summarized.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TV213.4

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