滇池草海富营养化和营养物磷基准与控制标准研究

发布时间：2018-02-08 15:43

本文关键词： 湖泊富营养化滇池草海总磷营养物基准营养物控制标准　出处：《昆明理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：目前,湖泊富营养化问题已成为全球性水生态环境方面的热点问题之一,为有效控制湖泊富营养化和保护湖泊环境,当务之急是对湖泊营养物的浓度制定一个基准和控制标准。然而,我国是一个多湖泊的国家,大多数的湖泊又分布广泛,在营养物水平与富营养化效应上,各湖泊存在明显的区域性差异。因此,应根据研究湖泊所处区域来合理的制定其营养物基准和控制标准。本文详细介绍了我国湖泊富营养化现状和治理措施以及磷在湖泊中的存在状态和转化方式,系统分析了国内外学者研究湖泊营养物基准候选变量的选取方法和参照状态的确定方法,基于上述分析,最终确定湖泊营养物基准值和控制标准值。本文以滇池草海作为研究对象,在查阅大量国内外研究湖泊营养物基准和控制标准的相关文献、收集滇池草海历年水质资料和补充野外采样的基础上,分析了滇池草海富营养化现状及其变化趋势,同时借助SPSS软件对各指标变量进行了主成分分析、相关性分析以及多元线性回归分析等,确定了滇池草海营养物基准候选变量。运用参照湖泊法、群体分布法以及模型预测法对滇池草海营养物基准候选变量进行分析,确定了其营养物基准参照状态值,最终依据卡尔森理论推断出了滇池草海营养物总磷的控制标准值,这一分析过程中所得出的结论如下：(1)近年来,滇池草海水质较之前有所好转,但其水体营养状态仍处于中度富营养化状态与重度富营养化状态之间。滇池草海水质等级现为Ⅴ类水,水体功能属于农业用水和一般景区用水。(2)通过对多种营养物基准候选指标变量和滇池草海区域环境的综合考虑分析,确定Chl-a、TP、TN、SD作为其营养物基准候选指标变量。运用统计学分析法确定了Chl-a、P、TN、SD的参照状态基准值,分别为2.000μg/L、0.010mg/L、 0.177 mg/L、2.200m,并将TP浓度0.010mg/L作为滇池草海营养物总磷基准值。最终根据卡尔森理论,推算出滇池草海营养物总磷控制标准值0.016mg/L。
[Abstract]:At present, lake eutrophication has become one of the hot issues in the global water ecological environment. In order to effectively control lake eutrophication and protect lake environment, The most urgent task is to establish a standard and control standard for nutrient concentration in lakes. However, China is a country with many lakes, most of which are widely distributed, in terms of nutrient levels and eutrophication effects. There are obvious regional differences among lakes. The nutrient standard and control standard should be reasonably formulated according to the area where the lakes are located. This paper introduces in detail the eutrophication status and control measures of lakes in China, and the status and transformation of phosphorus in lakes. Based on the above analysis, this paper systematically analyzes the methods of selecting the candidate variables and determining the reference state of the nutrient reference variables of lakes studied by domestic and foreign scholars. In this paper, taking the Caohai of Dianchi Lake as the object of study, we refer to a large number of domestic and foreign literatures on the nutrient standards and control standards of lakes. On the basis of collecting water quality data of Caohai in Dianchi Lake and supplementary field sampling, the eutrophication status and its changing trend of Caohai in Dianchi Lake were analyzed, and the principal component analysis of each index variable was carried out by means of SPSS software. Correlation analysis and multivariate linear regression analysis were used to determine the candidate variables of nutrient benchmark in Caohai of Dianchi Lake, and the reference lake method, population distribution method and model prediction method were used to analyze the candidate variables of nutrient benchmark in Caohai of Dianchi Lake. The reference state value of nutrient reference is determined, and the control standard value of total nutrient phosphorus in Caohai Lake of Dianchi Lake is inferred according to Carlson's theory. The conclusions of this analysis are as follows: 1) in recent years, The water quality of Caohai in Dianchi Lake is better than that before, but its nutrient status is still between moderate eutrophication state and severe eutrophication state. The water quality grade of Caohai in Dianchi Lake is class V water. The function of water body belongs to agricultural water use and general scenic area water use. (2) based on the comprehensive analysis of several nutrient benchmark candidate index variables and the environment of Caohai area in Dianchi Lake, Using statistical analysis method, the reference state reference value of Chl-aAU PTNSD was determined as 2.000 渭 g / L 0.010 mg / L, 0.177 mg / L = 2.200 m.The TP concentration of 0.010 mg / L was taken as the standard value of total phosphorus in the grass sea nutrients of Dianchi Lake. Finally, according to Carlson's theory, the content of TP was 0.010 mg / L as the reference value of total phosphorus of nutrients in the grass sea of Dianchi Lake. The control standard value of total phosphorus in the grass sea of Dianchi Lake was estimated to be 0.016 mg 路L ~ (-1) 路L ~ (-1).
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X524

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