• 关键词：景观水体  水质变化性  富营养化  环城公园

• 基金项目：国家自然科学基金（No.51579061）

• 李如忠
• 1. 合肥工业大学资源与环境工程学院, 合肥 230009;2. 纳米矿物与污染控制安徽普通高校重点实验室(合肥工业大学), 合肥 230009

• 陈慧
• 1. 合肥工业大学资源与环境工程学院, 合肥 230009;2. 纳米矿物与污染控制安徽普通高校重点实验室(合肥工业大学), 合肥 230009

• 刘超
• 1. 合肥工业大学资源与环境工程学院, 合肥 230009;2. 纳米矿物与污染控制安徽普通高校重点实验室(合肥工业大学), 合肥 230009

• 何瑞亮
• 1. 合肥工业大学资源与环境工程学院, 合肥 230009;2. 纳米矿物与污染控制安徽普通高校重点实验室(合肥工业大学), 合肥 230009

• 摘要：2018年10月—2019年5月，在合肥市环城公园6个景观水体各布设3个采样点位，按每半月1次的采样频率采集水样，据此开展水质特征分析和富营养化评价.结果表明：①各水体磷污染指标波动较明显，氮污染指标波动则相对较小；②整个研究期间各景观水体的EC、ORP、NH₄⁺、SRP、COD、Chl-a等大体呈上升趋势，TN和NO₃^-呈下降趋势，除南淝河、黑池坝景区和逍遥津公园水体TP呈上升态势外，其余水体TP均存在降低趋势；③根据水质评价结果，各景观水体TN污染严重超标，逍遥津和包河公园水体NH₄⁺、TP、COD污染状况相对较轻；④水体富营养化评价结果表明，各景观水体处于中富营养化状态；⑤逍遥津公园、包河公园水体水质均与南淝河、黑池坝景区水体存在极显著的差异性，包河公园与雨花塘水质表现出显著的差异性；⑥聚类分析结果将黑池坝和南淝河归为污染严重一类，雨花塘和银河公园归为污染较重一类，而将逍遥津和包河公园归为污染相对较轻的一类.

• Abstract：From October 2018 to May 2019, water quality analysis and eutrophication evaluation were conducted once a month with water samples collected from three sampling points in each of six landscape water bodies in the Hefei round-city-park. The results show that:①phosphorus pollution indexes presented obvious fluctuations, but nitrogen pollution indexes exhibited small variations in each landscape water; ②during the study period, EC, ORP, NH₄⁺, SRP, COD and Chl-a of all landscape water generally increased, while TN and NO₃^- decreased, and so did TP except for the Nanfei River, Heichiba and Xiaoyaojin water bodies; ③according to the water quality assessment, TN pollution was serious in each landscape water body, while NH₄⁺, TP and COD pollutions were relatively light in both water bodies of Xiaoyaojin and Baohe Park; ④based on the nutrition state index, each landscape water body was in the state of medium eutrophication; ⑤an extremely significant difference existed between the water quality of Xiaoyaojin Park, Baohe Park and Nanfei River, Heichiba landscape water bodies, and a significant difference in the water quality occurred between Baohe Park and Yuhuatang water bodies; ⑥in the light of cluster analysis, Heichiba and Nanfei River water bodies were classified as serious pollution, Yuhuatang and Yinhe Park water bodies were as heavy pollution, and Xiaoyaojin and Baohe Park water bodies were as relatively less polluted patterns.

• Key words：landscape water body  water quality variability  eutrophication  round-city-park

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