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| 乌江流域不同营养水平水库水体中汞的含量和形态分布 | |
| 引用本文： | 孟博,冯新斌,陈春宵,仇广乐,郭艳娜,刘凯,姚珩,张军方. 乌江流域不同营养水平水库水体中汞的含量和形态分布[J]. 生态学杂志, 2011, 30(5) |
| 作者姓名： | 孟博 冯新斌 陈春宵 仇广乐 郭艳娜 刘凯 姚珩 张军方 |
| 作者单位： | 1. 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵阳,550002;中国科学院研究生院,北京,100049 2. 中国科学院地球化学研究所,环境地球化学国家重点实验室,贵阳,550002 3. 西南大学资源环境学院,重庆,400716 |
| 摘 要： | 为了弄清不同营养状态水库水体的汞含量、形态分布、季节变化及甲基化特征,选取乌江流域富营养状态的乌江渡水库和贫-中营养状态的弓l子渡水库为研究对象,分别于2007年的1月(冬季)、5月(春季)、8月(夏季)和11月(秋季)采集水库水体分层水样及界面水(仅乌江渡水库),分析样品中活性汞(RHg)、总汞(THg)、溶解态汞(DHg)、颗粒态汞(PHg)、总甲基汞(TMeHg)、溶解态甲基汞(DMeHg)和颗粒态甲基汞(PMeHg).结果显示:乌江渡水库THg、DHg、PHg、RHg浓度和引子渡水体中的含量相当,而TMeHg、DMeHg、PMeHg的浓度则显著高于引子渡水库;相对于上覆水体,乌江渡水库底层水体/界面水甲基汞含量明显升高,表明乌江渡水库全年均有甲基化现象发生,而引子渡水库没有发现甲基化现象.以上研究表明,初级生产力水平是水库汞甲基化的重要影响因素. |
| 关 键 词： | 水库 不同营养水平 汞 甲基化 |
Distribution of total mercury and methylmercury in two hydroelectric reservoirs of Guizhou Province, China |
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| MENG Bo,FENG Xin-bin,CHEN Chun-xiao,QIU Guangle,GUO Yan-na,LIU Kai,YAO Heng,ZHANG Jun-fang. Distribution of total mercury and methylmercury in two hydroelectric reservoirs of Guizhou Province, China[J]. Chinese Journal of Ecology, 2011, 30(5) | |
| Authors: | MENG Bo FENG Xin-bin CHEN Chun-xiao QIU Guangle GUO Yan-na LIU Kai YAO Heng ZHANG Jun-fang |
| Affiliation: | MENG Bo1,2,FENG Xin-bin1,CHEN Chun-xiao3,QIU Guang-le1,GUO Yan-na1,LIU Kai1,YAO Heng1,ZHANG Jun-fang1,2(1State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China,2Graduate University of Chinese Academy of Sciences,Beijing 100049,3College of Resources and Environment,Southwest University,Chongqing 400716,China) |
| Abstract: | To investigate the distribution of mercury(Hg) and characteristics of its methylation in Wujiangdu(WJD),a reservoir with a high level of primary productivity,and in Yinzidu reservoir(YZD) with a low level of primary productivity,a fully adequate set of Hg species in water samples from a depth profile near of the dam in both reservoirs and from interface water in WJD were analyzed during winter(January 2007),spring(May 2007),summer(August 2007),and autumn(November 2007).The results showed that no significant... |
| Keywords: | reservoir different nutrient level mercury methylation |
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