中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The main phosphorous sources in the Changjiang estuary

文献类型:期刊论文

作者Yang Dongfang1,2,3; Wang Fan2; Miao Zhenqing1; Chen Yongli2; Tong Yuanzheng1
刊名CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2008-11-01
卷号26期号:4页码:486-497
关键词Changjiang Estuary Phosphate Sources Taiwan Warm Current The 32 Degrees n Upwelling Cyclone-type Eddy
ISSN号0254-4059
DOI10.1007/s00343-008-0486-5
文献子类Article
英文摘要Analysis using historical data on the phosphate sources in Changjiang (Yangtze River) estuary show that phosphate was supplied equally from the east, south, west and north of the estuary. These sources include the Changjiang River, the Taiwan Warm Current (TWC), a cyclone-type eddy, and the 32A degrees N Upwelling, supplying different phosphates in different times, ways and intensities. The magnitude of their supplying phosphate concentration was related with the size in the order of the Changjiang River < the TWC < the 32A degrees N Upwelling < the cyclone-type eddy, and the duration of the supplying was: the Changjiang River > the TWC > the cyclone-type eddy > the 32A degrees N Upwelling. The four sources supplied a great deal of phosphate so that the phosphate concentration in the estuary was kept above 0.2 mu mol/L in previous years, satisfying the phytoplankton growth. The horizontal and vertical distribution of the phosphate concentration showed that near shallow marine areas at 122A degrees E/31A degrees N, the TWC in low nutrient concentration became an upwelling through sea bottom and brought up nutrients from sea bottom to marine surface. In addition, horizontal distribution of phosphate concentration was consistent with that of algae: Rhizosolenia robusta, Rhizosolenia calcaravis and Skeletonema, which showed that no matter during high water or low water of Changjiang River, these species brought by the TWC became predominant species. Therefore, the authors believe that the TWC flowed from south to north along the coast and played a role in deflecting the Changjiang River flow from the southern side.; Analysis using historical data on the phosphate sources in Changjiang (Yangtze River) estuary show that phosphate was supplied equally from the east, south, west and north of the estuary. These sources include the Changjiang River, the Taiwan Warm Current (TWC), a cyclone-type eddy, and the 32A degrees N Upwelling, supplying different phosphates in different times, ways and intensities. The magnitude of their supplying phosphate concentration was related with the size in the order of the Changjiang River < the TWC < the 32A degrees N Upwelling < the cyclone-type eddy, and the duration of the supplying was: the Changjiang River > the TWC > the cyclone-type eddy > the 32A degrees N Upwelling. The four sources supplied a great deal of phosphate so that the phosphate concentration in the estuary was kept above 0.2 mu mol/L in previous years, satisfying the phytoplankton growth. The horizontal and vertical distribution of the phosphate concentration showed that near shallow marine areas at 122A degrees E/31A degrees N, the TWC in low nutrient concentration became an upwelling through sea bottom and brought up nutrients from sea bottom to marine surface. In addition, horizontal distribution of phosphate concentration was consistent with that of algae: Rhizosolenia robusta, Rhizosolenia calcaravis and Skeletonema, which showed that no matter during high water or low water of Changjiang River, these species brought by the TWC became predominant species. Therefore, the authors believe that the TWC flowed from south to north along the coast and played a role in deflecting the Changjiang River flow from the southern side.
学科主题Limnology ; Oceanography
URL标识查看原文
语种英语
WOS记录号WOS:000262669100024
公开日期2010-12-31
源URL[http://ir.qdio.ac.cn/handle/337002/6347]  
专题海洋研究所_海洋环流与波动重点实验室
作者单位1.Zhejiang Ocean Univ, Marine Sci Coll, Zhoushan 316000, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Ecoenvironm Sci Res Ctr, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
推荐引用方式
GB/T 7714
Yang Dongfang,Wang Fan,Miao Zhenqing,et al. The main phosphorous sources in the Changjiang estuary[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(4):486-497.
APA Yang Dongfang,Wang Fan,Miao Zhenqing,Chen Yongli,&Tong Yuanzheng.(2008).The main phosphorous sources in the Changjiang estuary.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(4),486-497.
MLA Yang Dongfang,et al."The main phosphorous sources in the Changjiang estuary".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.4(2008):486-497.

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来源:海洋研究所

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