| 旧镇湾海水中营养盐分布与富营养化的研究 |
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| 引用本文： | 陈艳梅,王鑫煌,吴昊.旧镇湾海水中营养盐分布与富营养化的研究[J].福建水产,2010(1):59-65,58. |
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| 作者姓名： | 陈艳梅 王鑫煌 吴昊 |
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| 作者单位： | 福建海洋研究所,福建,厦门,361012 |
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| 摘 要： | 根据2007年3月到2008年1月旧镇湾海域11个航次海水营养盐等的调查资料,分析了该海域生态环境中DIN和DIP的分布特征和时空变化,评价了水质富营养化状况。结果表明,旧镇湾DIN平均含量为0.283mg/L,以NO3-N为主要存在形式,占DIN的77.7%。旧镇湾DIP平均含量为0.023mg/L。旧镇湾海水5、7月份N/P比远远高于16,表明旧镇湾海水中磷相对于氮是匮乏的。8月份为最低,仅为4.84,其他月份N/P比平均值为11.98,略低于16,说明旧镇湾海水中氮相对供应不足。DIN和DIP变化趋势为旧镇湾内向湾外逐渐递减,与盐度分布呈负相关性。与历史资料相比,旧镇湾水质有明显改善,但仍具富营养化趋势。从春季到冬季,旧镇湾富营养化面积逐渐增加,秋季富营养化程度远高于其他季节,富营养化程度从湾内向湾外逐渐降低。
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| 关 键 词： | 无机氮 无机磷 N／P比 富营养化 旧镇湾 |
Study on Nutrient Distributions and Eutrophication in Seawater of Jiuzhen Bay,Fujian |
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| CHEN Yan-mei,WANG Xin-huang,WU Hao.Study on Nutrient Distributions and Eutrophication in Seawater of Jiuzhen Bay,Fujian[J].Journal of Fujian Fisheries,2010(1):59-65,58. |
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| Authors: | CHEN Yan-mei WANG Xin-huang WU Hao |
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| Institution: | Fujian Institute of Oceanology;Xiamen Fujian;361013 China |
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| Abstract: | Base on the data of 11 voyages in Jiuzhen Bay from March 2007 to January 2008,we analyse the distribution character and spatial-temporal variation of dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP) in Jiuzhen Bay and the situation of eutrophication is also assessed in this paper. Results show that NO3-N is the main component of DIN,which has the mean concentration of 0.283 mg/L,accounting for 77.7% of the DIN. Also,the mean concentration of DIP is 0.023 mg/L. In May and July,the ... |
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| Keywords: | inorganic nitrogen inorganic phosphorus N/P ratio eutrophication Jiuzhen Bay |
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