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大亚湾海水中总有机碳的时空分布及其影响因素

江志坚 黄小平 张景平

江志坚, 黄小平, 张景平. 大亚湾海水中总有机碳的时空分布及其影响因素[J]. 海洋学报, 2009, 31(1): 91-98.
引用本文: 江志坚, 黄小平, 张景平. 大亚湾海水中总有机碳的时空分布及其影响因素[J]. 海洋学报, 2009, 31(1): 91-98.
JIANG Zhi-jian, HUANG Xiao-ping, Zhang Jing-ping. Temporal and spatial distribution of total organic carbon and its influence aspects in the Daya Bay[J]. Haiyang Xuebao, 2009, 31(1): 91-98.
Citation: JIANG Zhi-jian, HUANG Xiao-ping, Zhang Jing-ping. Temporal and spatial distribution of total organic carbon and its influence aspects in the Daya Bay[J]. Haiyang Xuebao, 2009, 31(1): 91-98.

大亚湾海水中总有机碳的时空分布及其影响因素

基金项目: 广东省“908”项目(GD908-01-01);国家自然科学基金(40776086);中国科学院南海海洋研究所知识创新工程领域前沿项目(LYQY200706)

Temporal and spatial distribution of total organic carbon and its influence aspects in the Daya Bay

  • 摘要: 于2006—2007年夏季、冬季、春季和秋季对大亚湾总有机碳(TOC)进行采样调查,分析了TOC的季节变化特征和空间分布特征,并讨论了TOC与盐度、叶绿素a及石油类等环境因子之间的关系。2006—2007年TOC的浓度范围在1.30~6.30 mg/dm3,平均值为2.78 mg/dm3,TOC的浓度从大到小的趋势是春季、夏季、秋季、冬季。TOC垂直分布趋势不明显,春季和秋季垂直分布比较均匀,且中层TOC浓度比较高;而夏季、冬季垂直分布不够均匀。春季TOC平面分布比较均匀,在大辣甲的西北部有高值,而夏季、秋季、冬季的TOC在大辣甲的西北部都呈现低值;夏季的TOC分布呈现西高东低,自小湾内向小湾外递减的特征;秋季的TOC分布呈现出东西高,中部低,近岸大于离岸的特征;冬季的TOC分布呈现西高东低,西部海域分布线比较密集的特征。研究表明,大亚湾TOC与叶绿素a、石油类显著正相关,与盐度负相关,但不显著。大亚湾TOC浓度、时空分布与季节性径流、季风、水动力、生物地球化学、生物等环境因子密切相关,特别是受到季节性河流径流输入、浮游植物、石油类的影响较大。
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  • 收稿日期:  2008-08-20
  • 修回日期:  2008-12-12

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