摘要城市景观水体是城市人居环境的重要组成部分，水体富营养化会严重影响 景观水体的观赏价值和生态功能。为了对镇江城市景观水体的营养状况有一个 详细的了解，准确的判断出富营养化的发展趋势，对政府大楼前的人工湖进行 了监测，对富营养化程度综合评价的因子进行了探讨和分析。主要应用了综合 营养状态指数法进行评价。于 2016 年 3 月初至 2016 年 4 月底，每两周进行一 次采样，共四次对人工湖进行监测，通过研究分析，评价了水体的营养状况并 作出预测。主要结果如下：86024

本文通过对个环境因子的评价，选取了水温、pH、透明度（SD）、溶解氧（DO）、总磷（TP）、总氮（TD）、高锰酸盐指数、叶绿素 a 等 8 个环境因 子。通过监测，得出各样点 pH 值变化范围为 7。24-8。70，呈偏碱性;透明度范围 为 0。26-0。47m；溶解氧平均值为 9。21mg/L；总磷范围为 0。57-1。58μg/mL，变化 较为显著；总氮范围为 5。07-7。46mg/L；高锰酸盐指数范围为 1。63-7。72mg/L；叶 绿素 a 范围为 0。42-16。44mg/m3，有明显的变化范围。并以综合营养状态指数法 对人工湖的水体富营养化进行评价，同时，以叶绿素 a 的浓度为单一指标对人 工湖水体富营养化评价，最后得出结论此人工湖处于轻度富营养状态。

毕业论文关键词： 城市景观水体；富营养化；综合营养状态指数法；镇江市

Abstract Urban landscape water is an important part of urban living environment, eutrophication can seriously affect ornamental value and ecological functions of the landscape water。 In order to nutritional status Zhenjiang urban landscape water has a detailed understanding accurately determine the trends of eutrophication, the artificial lake in front of the government building were monitored for eutrophication comprehensive evaluation factors were analyzed and Discussion。  The  main application of the trophic state index were evaluated。 In early March 2016 to the  end of April 2016, sampled once every two weeks, for a total of four artificial lakes monitoring, research and analysis, evaluation of the nutritional status of the water body and make predictions。 The main results are as follows:

Through the evaluation of environmental factors, selected temperature, pH, transparency SD, dissolved oxygen DO, total phosphorus TP, total nitrogen TD, chemical oxygen demand Permanganate index, chlorophyll a, 8 environmental factors。 By monitoring results every point pH values ranged from 7。24 - 8。70, was alkaline; transparency in the range of 15cm -56cm; DO average of 9。21mg/L; total phosphorus in the range of 0。01 - 3。49μg / ml, change significantly; total nitrogen in the range of

5。07 - 7。46mg/L; Permanganate index in the range of 3。73 - 5。93mg/L; chlorophyll  a in the range of 0。9 - 9。1mg/m3, a significant range of variation。 And comprehensive nutrition status index of the artificial lake eutrophication evaluation, while the concentration of chlorophyll a single index of the artificial lake eutrophication evaluation, and finally the artificial lake that is mild eutrophication。

Keywords: Urban landscape water; eutrophication; trophic state index method; Zhenjiang City

目 录

第一章 绪论 1

1。1 水体富营养化研究进展与评价方法 1

1。1。1 水体富营养化研究状况 1

1。1。2 水体富营养化评价方法 3

1。2 城市景观水体与富营养化 4

1。2。1 城市景观水体富营养化成因 4

1。2。2 城市景观水体富营养化危害