| THE N／P RATIO IN THE NORTHERN SOUTH YELLOW SEA IN AUTUMN |
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| 引用本文： | 林荣根,W.D.Yoon,吴景阳,马丽.THE N／P RATIO IN THE NORTHERN SOUTH YELLOW SEA IN AUTUMN[J].中国海洋与湖沼学报,2002,20(4):384-388. |
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| 作者姓名： | 林荣根 W.D.Yoon 吴景阳 马丽 |
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| 作者单位： | [1]InstituteofOceanology,ChineseAcademyofSciences,Qingdao266071,China [2]WSFRI,NationalFisheriesResearchandDevelopmentInstitute,Incheon400－201,Korea |
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| 基金项目： | Project3 9790 1 1 0supportedbyNSFC，alsosupportedbyMDMAF，KOICAandWSFRIinKoreaandtheSEPA，IOCASinChina |
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| 摘 要： | Study of horizontal and vertical distributions of the N/P(nitrogen versus phosphate)atom ratio in the northem South Yellow Sea showed that the ratio varied greatly in upper waters of the in-vestigated area and was always much greater than the theoretical Redfield ratio of 16:1 found below the thermocline zone.It was in general higher near the coast and lower in the central part.With increasing depth,the ratio became smaller and smaller.This distribution pattem is attributed to :1)the anthropo-genic influence of the surface N and P which makes the N/P ratio differ from the normal value;2)the easy adsorption of P on particles hinders P trasport to the central part;3)below the thermocline zone,the N and P mainly come from the remineralization of the sedimented phytoplankton residues which have almost the theoretical Redfield value and;4)the existence of the Yellow Sea Bottom Cold Water which inhibits the vertical exchange of the water.
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| 关 键 词： | 氮／磷比率 黄海 秋季 分布规律 垂直分布 水平分布 |
| 收稿时间： | 31 July 2000 |
| 修稿时间： | 15 June 2001 |
The N/P ratio in the Northern South Yellow Sea in autumn |
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| Lin?Rong-gen,W.?D.?Yoon,Wu?Jing-yang,Ma?Li.The N/P ratio in the Northern South Yellow Sea in autumn[J].Chinese Journal of Oceanology and Limnology,2002,20(4):384-388. |
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| Authors: | Lin Rong-gen W D Yoon Wu Jing-yang Ma Li |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(2) WSFRI, National Fisheries Research and Development Institute, 400-201 Incheon, Korea |
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| Abstract: | Study of horizontal and vertical distributions of the N/P (nitrogen versus phosphate) atom ratio in the northern South Yellow Sea showed that the ratio varied greatly in upper waters of the investigated area and was always much greater than the theoretical Redfield ratio of 16:1 found below the thermocline zone. It was in general higher near the coast and lower in the central part. With increasing depth, the ratio became smaller and smaller. This distribution pattern is attributed to: 1) the anthropogenic influence of the surface N and P which makes the N/P ratio differ from the normal value; 2) the easy adsorption of P on particles hinders P transport to the central part; 3) below the thermocline zone, the N and P mainly come from the remineralization of the sedimented phytoplankton residues which have almost the theoretical Redfield value and; 4) the existence of the Yellow Sea Bottom Cold Water which inhibits the vertical exchange of the water. |
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| Keywords: | N/P ratio horizontal and vertical distributions South Yellow Sea |
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