深圳红树林保护区水质重金属含量  

Content of heavy metal elements of mangrove forest water in Shenzhen Bay

作　　者：李存焕[1] 李曼玉[1] 罗濠[1] 提巍坤[1] 丑庆川[1] 史秀华[1] 

机构地区：[1]深圳大学高尔夫学院,深圳518060

出　　处：《深圳大学学报（理工版）》2013年第4期437-440,共4页Journal of Shenzhen University(Science and Engineering)

基　　金：国家林业局948资助项目(2008-4-38);深圳市基础研究计划资助项目(JC200903180627A)~~

摘　　要：通过连续2年对深圳红树林自然保护区定点采样及水质分析,研究水样中铬、镉、铅、铜、锰、锌和镍7种重金属元素的质量浓度随时间变化,及其与气象因素的关系.研究表明,5个样地重金属元素铬、铜、镉和铅的质量浓度随降水量的增加和气温上升而逐渐下降;铅和镉元素的质量浓度均超出《海水水质标准》中第Ⅳ类水质标准,铜、锌和镍元素质量浓度符合国家Ⅰ类海水水质标准,未测出锌和镍元素;新洲河口的重金属污染程度较重,两个鱼塘的重金属污染程度较轻.The content and influence of the seven heavy metals of Cr, Cd, Pb, Cu, Mn, Zn and Ni were studied by monitoring the water from 5 sample sites in mangrove nature reserves of the Shenzhen bay for two years. The results show that the contents of Pb and Cd in all sampling sites were respectively 0.05 mg/kg and 0.01 mg/kg, exceeding the Class IV standards of the ＂Sea water quality standard GB3097 - 1997＂ while Cu, Zn and Ni were up to the Class I sea water quality standards. During the study period, the content of heavy metal elements Cr, Cu, Cd and decline. The Pb gradually heavy metal same time, such pollution any of the sample sites. decreased with the increase of precipitation, and the rise of temperature also caused a pollution in the Xinzhou estuary was more serious than that in other sample sites. At the in two neighboring fishponds was only slight. In addition, no Zn and Ni was detected in any of the sample sites.

关 键 词：湿地生态 深圳湾 红树林 重金属污染 水质污染 年际变化 植物吸收 

分 类 号：X8[环境科学与工程—环境工程]