南黄海冷水团海域溶解氧和叶绿素最大现象值及营养盐累积的季节演变

韦钦胜; 傅明珠; 李艳; 王保栋; 于志刚

doi:10.3969/j.issn.0253-4193.2013.04.017

南黄海冷水团海域溶解氧和叶绿素最大现象值及营养盐累积的季节演变

doi: 10.3969/j.issn.0253-4193.2013.04.017

1.
国家海洋局第一海洋研究所海洋生态环境科学与工程国家海洋局重点实验室, 山东青岛 266061;中国海洋大学海洋化学理论与工程技术教育部重点实验室, 山东青岛 266100
2.
国家海洋局第一海洋研究所海洋生态环境科学与工程国家海洋局重点实验室, 山东青岛 266061
3.
中国海洋大学海洋化学理论与工程技术教育部重点实验室, 山东青岛 266100

基金项目: 国家重点基础研究发展计划973项目课题 (2011CB403602)“海洋环境变化与水母暴发的相互作用”;我国近海海洋综合调查与评价专项课题(908-01-ST03);中央级公益性科研院所基本科研业务费专项资金项目(2013G10)。

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出版历程
- 收稿日期: 2012-08-27
- 修回日期: 2013-02-28

Observation of the seasonal evolution of DO, chlorophyll a maximum phenomena and nutrient accumulating in the southern Huanghai (Yellow) Sea Cold Water Mass area

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

摘要

摘要: 基于2006-2007年在南黄海冷水团海域开展的4个季度月的调查资料, 重点研究了该海域溶解氧(DO)、叶绿素a(Chl a)最大值现象和营养盐累积的季节演变规律。结果表明:春至秋季黄海冷水团海域DO和Chl a最大值层深度具有先加深后变浅的趋势, 出现最大值层的海域面积呈现出先增大后缩小的变化过程, DO和Chl a最大值层的深度及面积在夏季均达到最大, 至冬季DO和Chl a最大值现象消失;夏季冷水团海域深水区DO最大值处的氧含量整体高于春季, 而冷水团边界附近氧最大值处的氧含量整体低于春季;春至秋季冷水域深水区次表层Chl a最大值处的Chl a含量先降低后升高, 于夏季时最低, 入秋后开始升高, 而一年四季中冷水域边界附近Chl a最大值处的Chl a含量却在夏季时最高, 而且显著高于深水区。黄海冷水团海域的底层营养盐储库具有一定的空间异质性, 冷水域底层通常分别在深水区和西部边界处存在营养盐高值核心, 其中位于深水区的高值核心位置季节变化不明显, 而位于冷水域西部边界附近的高值核心位置则呈现出自春季至夏季向西移动、入秋后又向东部移动的季节变化特征。水文物理因素和生物化学过程对DO、Chl a最大值及营养盐储库的季节演变具有重要的调控作用。
- 黄海冷水团 /
- DO最大值现象 /
- 次表层Chla最大值现象 /
- 营养盐累积
Abstract: Based on the data obtained in four seasonal surveys during 2006-2007 in the southern Huanghai (Yellow) Sea Cold Water Mass area, the seasonal evolution of dissolved oxygen(DO), chlorophyll a(Chl a)maximum phenomena and nutrient accumulating process was analyzed.The result showed that:(1)From spring to autumn, the depth of DO and Chl a maximum layer had the trend of deepening first and then shallowing, the scope of DO and Chl a maximum layer increased firstly and then decreased, the depth and scope of DO and Chl a maximum layer were the largest in summer;the DO and Chl a maximum phenomena disappeared in winter.(2)In DO maximum layer in the deep waters of the cold water mass in summer, DO concentration in summer was higher than in spring, while in DO maximum layer in the boundary area of the cold water mass in summer, DO concentration in summer was lower than in spring.(3)From spring to autumn, Chl a concentration in Chl a maximum layer had the trend of decreasing firstly and then increasing, and it was the lowest in summer;in Chl a maximum layer located in the frontal region of the cold water mass in summer, Chl a concentration in summer was the largest all the year round, and was much higher than in deep waters.(4)The nutrient storage in the bottom cold water mass area of the southern Huanghai Sea had spatial heterogeneity, generally, there was a high-concentration core of nutrients in the deep waters and the boundary region of the cold water mass area respectively, the one situating in the deep water had the fixed position on the whole all the year round, while the one located in the boundary region of the cold water mass moved westward from spring to summer, and then moved eastward again when autumn was coming.(5)Hydrological factors and bio-chemical effect played an important role in regulating the seasonal evolution of the DO and Chl a maximum phenomena as well the nutrient storage．
- Huanghai(Yellow) Sea Cold Water Mass /
- DO maximum phenomenon /
- subsurface Chl a maximum phenomenon /
- nutrient accumulating

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