| Distribution of heavy metals and nutrients in rainwater in coastal regions between the southern Yellow Sea and East China Sea |
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| 作者姓名： | 刘昌岭 张国森 任宏波 张经 |
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| 作者单位： | [1]QingdaoInstituteofMarineGeology,Qingdao266071,China／／OceanUniversityofChina,Qingdao266003,China [2]OceanUniversityofChina,Qingdao266003,China [3]QingdaoInstituteofMarineGeology,Qingdao266071,China [4]StateLaboratoryofEstuarineandCoastalResearch,EastChinaNormalUniversity,Shanghai200062,China |
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| 基金项目： | Supported by the National “973” Program (No. G1999043705), and the Natural Sciences Foundation of Shandong Province (No. Y2000E02). |
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| 摘 要： | Rainwater samples were collected in series in Qianliyan Island (southern Yellow Sea) and Shengsi Archipelago (East China Sea) between May 2000 and May 2002, chemical analysis for pH values,concentrations of heavy metals (Cu, Pb, Zn and Cd) and nutrients (NH4^-, NO3^-, PO43^-, SiO32^-) were performed.Results indicate that concentrations of most of the heavy metals and nutrients in rainwater show clear seasonal variation, i.e. high level in winter and low level in summer. Regionally, concentrations are higher in the southern Yellow Sea than in the East China Sea, but the annual input of heavy metals into oceans by wet deposition is similar in both stations. However, the input of nutrients by wet deposition in the East China Sea is 2-3 times higher than that in the southern Yellow Sea. In individual, Pb and PO4^3- are input to the sea mainly by dry deposition; whereas Cu, Zn, Cd and N compounds are input dominantly by wet deposition, the N/P ratios in the rainwater from two stations are much higher than those in seawater, showing a significant impact of atmospheric wet deposition on marine production and biogeochemical circulation of nutrients in these sea regions.
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| 关 键 词： | 黄海南部 中国海东部 重金属 营养元素 海洋化学 |
| 收稿时间： | 11 November 2003 |
| 修稿时间： | 29 June 2004 |
Distribution of heavy metals and nutrients in rainwater in coastal regions between the southern Yellow Sea and East China Sea |
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| Liu Changling,Zhang Guosen,Ren Hongbo,Zhang Jing.Distribution of heavy metals and nutrients in rainwater in coastal regions between the southern Yellow Sea and East China Sea[J].Chinese Journal of Oceanology and Limnology,2005,23(2):230-237. |
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| Authors: | Liu Changling Zhang Guosen Ren Hongbo Zhang Jing |
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| Institution: | (1) Qingdao Institute of Marine Geology, 266071 Qingdao, China;(2) Ocean University of China, 266003 Qingdao, China;(3) State Laboratory of Estuarine and Coastal Research, East China Normal University, 200062 Shanghai, China |
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| Abstract: | Rainwater samples were collected in series in Qianliyan Island (southern Yellow Sea) and Shengsi Archipelago (East China Sea)
between May 2000 and May 2002, chemical analysis for pH values, concentrations of heavy metals (Cu, Pb, Zn and Cd) and nutrients
(NH4
+, NO3
−, PO4
3−, SiO3
2−) were performed. Results indicate that concentrations of most of the heavy metals and nutrients in rainwater show clear seasonal
variation, i.e. high level in winter and low level in summer. Regionally, concentrations are higher in the southern Yellow
Sea than in the East China Sea, but the annual input of heavy metals into oceans by wet deposition is similar in both stations.
However, the input of nutrients by wet deposition in the East China Sea is 2–3 times higher than that in the southern Yellow
Sea. In individual, Pb and PO4
3− are input to the sea mainly by dry deposition; whereas Cu, Zn, Cd and N compounds are input dominantly by wet deposition,
the N/P ratios in the rainwater from two stations are much higher than those in seawater, showing a significant impact of
atmospheric wet deposition on marine production and biogeochemical circulation of nutrients in these sea regions.
Supported by the National “973” Program (No. G1999043705), and the Natural Sciences Foundation of Shangdong Province (No.
Y2000E02). |
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| Keywords: | southern Yellow Sea East China Sea rainwater heavy metals nutrient elements |
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