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作 者:高芮 张楠 张雷[2] 黄麟 钱华 GAO Rui;ZHANG Nan;ZHANG Lei;HUANG Lin;QIAN Hua(Institute of Lake Ecology and Environment,Chaohu Lake Bureau of Anhui Province,Hefei,Anhui 230601,China;Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing,Jiangsu 210008,China;Hubei Ecological and Environmental Monitoring Center,Wuhan,Hubei 430072,China)
机构地区:[1]安徽省巢湖管理局湖泊生态环境研究院,安徽合肥230601 [2]中国科学院南京地理与湖泊研究所,江苏南京210008 [3]湖北省生态环境监测中心站,湖北武汉430072
出 处:《环境监测管理与技术》2025年第2期38-44,共7页The Administration and Technique of Environmental Monitoring
基 金:国家自然科学基金资助项目(41771122)。
摘 要:2018年在巢湖布设111个采样点,采集沉积物柱样,测定0 cm~10 cm和10 cm~20 cm柱样中总氮(TN)、总磷(TP)及相关基本指标,分析其污染水平和空间分布特征,并利用沉积物氮磷污染指数评估巢湖沉积物污染程度。结果表明:巢湖沉积物中TN和TP的质量比范围分别为117 mg/kg~2470 mg/kg和142 mg/kg~2022 mg/kg;巢湖西湖区北部、东湖区北部和东部湖湾为氮磷高值区,中湖区南部氮磷值最低;TN、TP污染指数和综合污染指数分别为0.21~4.37、0.31~4.35和0.44~3.83,巢湖沉积物污染程度为清洁—重度污染,西湖区污染程度最高,东湖区次之,中湖湖心最低。In 2018,0 cm~10 cm and 10 cm~20 cm column sediment samples were collected from 111 sampling sites in Chaohu lake,total nitrogen(TN),total phosphorus(TP)and other related indexes were determined to analyze their pollution levels and spatial distribution characteristics,and the pollution degree of Chaohu lake was evaluated by nitrogen and phosphorus pollution indexes.The results showed that the mass ratios of TN and TP in sediments in Chaohu lake ranged from 117 mg/kg to 2470 mg/kg and 142 mg/kg to 2022 mg/kg,respectively.High value areas of nitrogen and phosphorus were in the northern part of western and eastern regions of the lake,and eastern bay area.The lowest concentration of nitrogen and phosphorus was in the southern part of central region of the lake.The pollution index of TN and TP,and the comprehensive pollution index were 0.21~4.37,0.31~4.35,and 0.44~3.83 respectively,indicating that the pollution degree of the sediments in Chaohu lake was clean-heavy pollution.The western region of the lake had the highest pollution level,followed by the eastern region,and the center of the lake had the lowest.
分 类 号:X524[环境科学与工程—环境工程] X825
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