Ecological environment characteristics and seasonal variations at 36°N transect in the western Southern Huanghai Sea

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

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Article Navigation > Haiyang Xuebao > 2011 > 33(5): 61-72

WEI Qin-sheng, GE Ren-feng, LI Rui-xiang, ZANG Jia-ye. Ecological environment characteristics and seasonal variations at 36°N transect in the western Southern Huanghai Sea[J]. Haiyang Xuebao, 2011, 33(5): 61-72.

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Ecological environment characteristics and seasonal variations at 36°N transect in the western Southern Huanghai Sea

1.
First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of Science and Engineering for Marine Ecological Environment,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao 266100,China
2.
First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of Marine Science and Numerical Modeling,State Oceanic Administration,Qingdao 266061,China
3.
First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Key Laboratory of Science and Engineering for Marine Ecological Environment,State Oceanic Administration,Qingdao 266061,China

Received Date: 2010-01-08

Abstract

Abstract

The seasonal variation and the main controlling factors of the hydrological characteristics and biogenic elements at 36°N transect in the western Southern Huanghai Sea was illustrated,moreover,the important ecological behavior in the related sea area was also reflecting and indicated.The result showed that:(1)The Huanghai Sea Cold Water Mass(HSCWM)and the Huanghai Sea Warm Current(HSWC)at 36°N alternated seasonally;the water body under the thermocline in autumn was the mixed water which not only retained the characteristics of the Cold Water Mass,but also had the features of the warm water;a low-salinity cold water patch(Qingdao Cold Water Mass)existed in the west of the section in four seasons,and the seasonal variation of its location was closely related to the boundary of the HSCWM and HSWC.(2)The stratification,bio-chemical effect and vertical mixing process were the main factors influencing the distribution and seasonal variation of the biogenic elements;in autumn and winter,a high-nutrients area was found near the low-salinity cold water in the west of the section;the nutricline exited in the deep waters of the section and the sea area of the HSCWM in four seasons,which was closely related to the hydrological thermocline,water stability and bio-chemical effect.Meanwhile,a viewpoint was also proposed in this paper that the sea area of the HSCWM had the function of nutrients stored in summer and exported in winter.
- Southern Huanghai Sea,
- ecological environment,
- seasonal variation,
- Huanghai Sea Cold Water Mass(HSCWM),
- nutricline,
- stored in summer and exported in winter

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References(28)

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