| 气候变化背景下极地海洋和陆地生态系统中持久性有机污染物的迁移和分布 |
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| 引用本文： | 武晓果,谢周清.气候变化背景下极地海洋和陆地生态系统中持久性有机污染物的迁移和分布[J].极地研究,2014,26(4):433-440. |
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| 作者姓名： | 武晓果 谢周清 |
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| 作者单位： | 1.安徽师范大学环境科学与工程学院，安徽 芜湖 241000；
;2.中国科学技术大学极地环境研究室，安徽 合肥 230026 |
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| 基金项目： | 国家自然科学基金青年基金项目，安徽省自然科学基金青年基金项目 |
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| 摘 要： | 近年来,气候变化对极地环境产生深远的影响,进一步影响到持久性有机污染物(persistent organic pollutants,POPs)在极地同环境介质之间的分布和迁移。对极地海洋生态系统而言,气候变化导致的海冰消融和开放性海域面积增加,使得表层海水和海冰中的POPs物质再次释放进入大气;同时气候变化导致的极地海洋初级生产力降低会对海洋生物泵产生影响,而使得极地海洋中的POPs物质难以进入深海,增加极地生态系统对POPs的暴露。对极地陆地生态系统而言,POPs的地球化学循环受到温度增加,及其导致的土壤有机质含量增加共同作用的影响。
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| 关 键 词： | 气候变化 极地 持久性有机污染物 大气-海水/土壤交换 |
| 收稿时间： | 2013-08-01 |
INFLUENCE OF CLIMATE CHANGE ON THE D ISTRIBUTION AND TRANSPORTATION OF PERSISTENT ORGANIC POLLUTANTS IN MARINE AND TERRESTRIAL ECOSYSTEMS IN POLAR REGIONS |
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| Wu Xiaoguo,Xie Zhouqing.INFLUENCE OF CLIMATE CHANGE ON THE D ISTRIBUTION AND TRANSPORTATION OF PERSISTENT ORGANIC POLLUTANTS IN MARINE AND TERRESTRIAL ECOSYSTEMS IN POLAR REGIONS[J].Chinese Journal of Polar Research,2014,26(4):433-440. |
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| Authors: | Wu Xiaoguo Xie Zhouqing |
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| Abstract: | Global climate change has had profound impacts on the environment of the polar regions, and on the distribution and transport of persistent organic pollutants (POPs) in marine and terrestrial ecosystems. In marine ecosystems, the loss of sea ice and increasing areas of open water have lead to the re-emission of POPs trapped in the ice sheet and the ocean. Furthermore, the decrease in primary productivity caused by climate change, and the impact of this decrease on the performance of the biological pump, have reduced the deposition of POPs in the deep ocean, increasing the biological exposure to these substances. In terrestrial ecosystems, the remobilization of POPs has been driven by changes in temperature and soil organic matter. |
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| Keywords: | climate change polar regions persistent organic pollutants sea-soil/air exchange |
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