东太湖养殖区、生态恢复区和对照区水质对比研究  

Comparison and Analysis on Water Quality of Aquaculture,Ecological Restoration and Control Areas in East Taihu Lake

作　　者：苏芮 徐慧敏[1,2,4] 王树人 陆建明[3] 曾巾 赵大勇[1,4] SU Rui;XU Huimin;WANG Shuren;LU Jianming;ZENG Jin;ZHAO Dayong(State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;Taihu Fisheries Commission of Jiangsu Province,Suzhou 215004,China;The Experimental Teaching Center of Water Resources,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,江苏南京210008 [3]江苏省太湖渔业管理委员会办公室,江苏苏州215004 [4]河海大学水利学科专业实验教学中心,江苏南京210098

出　　处：《化学与生物工程》2020年第6期33-41,共9页Chemistry & Bioengineering

基　　金：国家科技支撑计划项目(2015BAD13B01,2015BAD13B00)。

摘　　要：比较分析了东太湖养殖污染控制区(蟹草养殖区,XC)、湖泊养殖优化区(混合养殖区,HY)、生态恢复区(HF)和对照区(DZ)的水环境因子和营养物质浓度,并利用主成分分析法对4个区域的水质进行了评价。结果表明,在2016年1月份、3月份、4月份、8月份和11月份,蟹草养殖区、混合养殖区和生态恢复区的总氮平均浓度(1.05~1.13 mg·L^-1)和总磷平均浓度(0.054~0.060 mg·L^-1)均低于对照区(分别为1.36 mg·L^-1和0.066 mg·L^-1),并且硝氮平均浓度(0.34~0.38 mg·L^-1)显著低于对照区(0.73 mg·L^-1,P<0.05)。主成分分析结果表明,养殖区和生态恢复区的水质总体上均优于对照区。东太湖现行的蟹草养殖系统和混合养殖系统没有加重水体的污染负荷。We compared and analyzed the water environmental factors and nutrients concentrations of crab-plant breeding area(XC),mixed-aquaculture area(HY),ecological restoration area(HF),and control area(DZ)in East Taihu Lake,and evaluated the water quality of the four areas by principal component analysis(PCA).The results show that the average concentrations of total nitrogen(1.05-1.13 mg·L^-1)and total phosphorus(0.054-0.060 mg·L^-1)in the XC,HY,and HF are lower than those in the DZ(1.36 mg·L^-1and 0.066 mg·L^-1,respectively),and the average concentration of nitrate(0.34-0.38 mg·L^-1)is significantly lower than that in the DZ(0.73 mg·L^-1,P<0.05).The PCA results show that the water quality of the XC,HY,and HF are better than that of the DZ.On the whole,the existing crab-plant breeding system and mixed-aquaculture system do not increase the pollution in East Taihu Lake.

关 键 词：东太湖 湖泊养殖 蟹草养殖 混合养殖 主成分分析法(PCA) 

分 类 号：X824[环境科学与工程—环境工程]