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同位素  2011 

夏季黄、东海初级生产力的分布及其变化

, PP. 95-101

Keywords: 黄海,东海,初级生产力,14C示踪法,夏季

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Abstract:

利用14C示踪法实测了黄、东海海域2006年6—8月的初级生产力,结果表明,积分初级生产力介于378.65~6403.47mg/(m2·d)之间,平均为2059.56mg/(m2·d)。初级生产力的空间变化表现出3个特点1)东海的积分初级生产力明显高于黄海;2)受黑潮水影响,海域的初级生产力比陆架区明显低;3)长江口东南海域和济州岛西南海域存在较高的初级生产力。对初级生产力和环境因子的关系进行分析表明,初级生产力的高值大多出现在水温为21~26℃的水体中,光强和营养盐共同调控着黄、东海海域初级生产力的分布。受黑潮水影响,海域初级生产力较低与其贫乏的营养盐有关,而长江冲淡水和冷涡输送的丰富营养盐维持着长江口东南海域和济州岛西南海域较高的初级生产力。

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