湘江流域农村水资源保护类型区划研究

发布时间：2018-01-26 22:37

本文关键词： 农村水资源保护区划湘江流域　出处：《北京林业大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着农业非点源污染的加重,农村水资源受到的威胁也越来越严重,农村水资源保护是一项具有重要意义的工作。农业非点源污染特性复杂,影响因素众多,使得不同的地区的农村水资源保护所面对的问题不同,因此分区域研究每个地区农业非点源污染的特点,可以更有针对性,也更有效率的对农村水资源进行保护。本研究以湘江流域为研究对象,以县为基本单元,通过对农村生活污染、畜禽养殖污染、农业化肥污染、水产养殖污染四类污染源的分析,在考虑水功能区的基础上,采用排污系数法估算农业非点源污染负荷,进行湘江流域农村水资源保护类型区划工作。本研究采用空间叠置法、水质指数比法和内梅罗指数法分别对湘江流域进行了水功能区分布、污染类型和污染强度的分析,最终将湘江流域划分为2个一级分区,9个二级分区,24个三级分区。依据区划结果,分析了每个分区的特点,并提出了一些可行的措施。本研究的结果可以为其他地区农村水资源保护类型区划提供参考。
[Abstract]:With the aggravation of agricultural non-point source pollution, the threat to rural water resources is becoming more and more serious. The protection of rural water resources is an important work. The characteristics of agricultural non-point source pollution are complex, and there are many influencing factors. Make different areas of rural water resources protection facing different problems, so sub-regional study of the characteristics of agricultural non-point source pollution in each region, can be more targeted. More efficient protection of rural water resources. In this study, Xiangjiang River Basin as the research object, county as the basic unit, through the analysis of the rural life pollution, livestock and poultry culture pollution, agricultural fertilizer pollution, aquaculture pollution four kinds of pollution sources. On the basis of considering the water function area, the pollution load of agricultural non-point source was estimated by sewage coefficient method, and the zonation of rural water resources protection type in Xiangjiang River basin was carried out. The spatial superposition method was used in this study. Water quality index ratio method and Nemero index method were used to analyze the distribution of water function area, pollution type and pollution intensity in Xiangjiang river basin. Finally, Xiangjiang river basin was divided into 2 first-class zones and 9 second-class zones. According to the results of the zonation, the characteristics of each zonation are analyzed, and some feasible measures are put forward. The results of this study can be used as a reference for the zonation of rural water resources protection types in other areas.
【学位授予单位】：北京林业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：X52;F323.213

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