Characteristics of the ecological environment in cross-frontal sections and a viewpoint of the frontal region ecosystem in the southern Huanghai Sea in summer

WEI Qin-sheng; GE Ren-feng; ZANG Jia-ye; LI Rui-xiang

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Article Navigation > Haiyang Xuebao > 2011 > 33(3): 74-84

WEI Qin-sheng, GE Ren-feng, ZANG Jia-ye, LI Rui-xiang. Characteristics of the ecological environment in cross-frontal sections and a viewpoint of the frontal region ecosystem in the southern Huanghai Sea in summer[J]. Haiyang Xuebao, 2011, 33(3): 74-84.

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Characteristics of the ecological environment in cross-frontal sections and a viewpoint of the frontal region ecosystem in the southern Huanghai Sea in summer

1.
First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of State Oceanic Administration for Marine Ecological Environmental Science and Engineering, First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China
2.
First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of State Oceanic Administration for Marine Environmental Science and Numerical Modeling,First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China

Received Date: 2009-05-11

Abstract

Abstract

Based on the comprehensive survey of the southern Huanghai Sea,the distribution of the continental shelf front and the ecological environment characteristics in cross-frontal sections were analyzed,besides,combined the biological and ecological phenomena in the frontal region,a viewpoint of the frontal region ecosystem was put forward.The results show that the continental shelf front (tidal front) induced by tidal mixing exists in the western boundary area of the southern Huanghai Sea Cold Water Mass,and the mostly notable fronts exist in the areas from the northeast sea of the Changjiang Estuary to the coastal sea,as well as Shidao coastal sea and the lateral area of the Haizhou Bay,which corresponds to the surface cold patch also;in the cross-frontal sections,the uplift of temperature,DO,pH and nutrient contours in the frontal region is the result of the upwelling of the bottom cold water,meanwhile,the accumulation of the nutrients and the upwelling of high concentration nutrients water in the frontal region paly an important role in the appearance of high concentration of Chl a;the distribution characteristics of the biochemical and hydrological elements also prove that the upwelling phenomenon indeed exists in the continental shelf frontal region and the boundary area of the southern Huanghai Sea Cold Water Mass;as a special environmental field in marine ecosystem,the continental shelf front has significant impacts on the ecological activities in the frontal region,and has close relationship with the intensive distribution of organisms;the unique distribution characteristic of the hydrological and biochemical in the frontal area of the southern Huanghai Sea reflects that a special living environment exists in the frontal area,therefore,a viewpoint of the frontal region ecosystem is put forward.
- sourthern Huanghai Sea,
- continental shelf front(tidal front),
- cross-frontal section,
- frontal upwelling,
- ecological environment,
- frontal region ecosystem

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