|
|||||
|
|
| ^226Ra evidence for the ecosystem shift over the past 40 years in the North Pacific Subtropical Gyre | |
| 引用本文： | YANG JunHong CHEN Min QIU YuSheng LI YanPing MA Qiang LUE E ZHANG Run HUANG YiPu. ^226Ra evidence for the ecosystem shift over the past 40 years in the North Pacific Subtropical Gyre[J]. 科学通报(英文版), 2007, 52(6): 832-838. DOI: 10.1007/s11434-007-0109-0 |
| 作者姓名： | YANG JunHong CHEN Min QIU YuSheng LI YanPing MA Qiang LUE E ZHANG Run HUANG YiPu |
| 作者单位： | [1]Department of Oceanography, Xiamen University, Xiamen 361005, China [2]State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
| 基金项目： | Supported by the National Natural Science Foundation of China （Grant No. 90411016）, the National Key Basic Research Special Foundation Program of China （Grant No. 2005CB422305）, and China 0cean Mineral Resources R＆ D Association Foundation （Grant Nos. DY105-02-04 and DY105-02-01） |
| 摘 要： | Surface seawater was collected for ~(226)Ra measurement in the North Pacific Subtropical Gyre from July to October, 1999 and October to December, 2003. Combined with the historical data reported for this sea area, a declined trend of surface ~(226)Ra concentrations was observed since 1960s, indicating the ecosystem shift in response to global warming. On one side, the enhanced stratification of the upper water column resulting from global warming reduced the ~(226)Ra input from the depth, on the other, the temporal increase of biological production resulting from the climate-related ecosystem structure change strengthened the ~(226)Ra removal from the surface ocean. Both the physical and biological processes resulted in the decrease of surface ~(226)Ra concentrations in the North Pacific Subtropical Gyre. The temporal trend of surface ~(226)Ra concentrations was consistent with the trends of chlorophyll a, silicate, phosphate and primary production previously reported. This study provided ~(226)Ra evidence for the ecosystem shift under global change. |
| 关 键 词： | 北太平洋亚热带涡流 生态系统漂变 镭226 放射性同位素浓度 海面海水 |
| 收稿时间： | 2006-05-31 |
| 修稿时间： | 2006-05-312006-08-15 |
226Ra evidence for the ecosystem shift over the past 40 years in the North Pacific Subtropical Gyre |
|
| Yang,JunHong,Chen,Min,Qiu,YuSheng,Li,YanPing,Ma,Qiang,Lü, E.,Zhang,Run,Huang,YiPu. 226Ra evidence for the ecosystem shift over the past 40 years in the North Pacific Subtropical Gyre[J]. Chinese science bulletin, 2007, 52(6): 832-838. DOI: 10.1007/s11434-007-0109-0 | |
| Authors: | Yang JunHong Chen Min Qiu YuSheng Li YanPing Ma Qiang Lü E. Zhang Run Huang YiPu |
| Affiliation: | (1) Department of Oceanography, Xiamen University, Xiamen, 361005, China;(2) State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China |
| Abstract: | Surface seawater was collected for ~(226)Ra measurement in the North Pacific Subtropical Gyre from July to October, 1999 and October to December, 2003. Combined with the historical data reported for this sea area, a declined trend of surface ~(226)Ra concentrations was observed since 1960s, indicating the ecosystem shift in response to global warming. On one side, the enhanced stratification of the upper water column resulting from global warming reduced the ~(226)Ra input from the depth, on the other, the temporal increase of biological production resulting from the climate-related ecosystem structure change strengthened the ~(226)Ra removal from the surface ocean. Both the physical and biological processes resulted in the decrease of surface ~(226)Ra concentrations in the North Pacific Subtropical Gyre. The temporal trend of surface ~(226)Ra concentrations was consistent with the trends of chlorophyll a, silicate, phosphate and primary production previously reported. This study provided ~(226)Ra evidence for the ecosystem shift under global change. |
| Keywords: | North Pacific Subtropical Gyre ~(226)Ra ecosystem change |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《科学通报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《科学通报(英文版)》下载全文 | |