| 摘要: |
| 对山东近海31个站位表层沉积物中的总氮、总磷和总有机碳的含量和分布特征进行了研究。结果表明, 总氮、总磷和总有机碳含量均较低, 高值区主要分布在胶州湾及湾口和北部海域, 总氮浓度范围为0.31～0.75 mg/g, 平均值为0.52 mg/g, 总磷浓度范围为0.18～0.32 mg/g, 平均值为0.24 mg/g, 总有机碳浓度范围为0.17%～0.49%, 平均值为0.33%。相关性分析表明, 总氮和总有机碳的相关性较好, 总有机碳和总氮比值(TOC/TN)略高于Redfield 比值, 表明这两种生源要素的来源可能是一致的。 |
| 关键词: 山东近海 沉积物 总氮 总磷 总有机碳 |
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| 基金项目:山东省908 专项近岸海域生物生态和化学调查项目(SD-908-01-05.06); 国家自然科学基金项目(41076065) |
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| Distribution characteristics of carbon, nitrogen and phosphor in the sediments of southern Shandong adjacent seas |
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Lü Gui-cai,ZHANG Zhe,WANG Jiang-tao,TAN Li-ju
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| Abstract: |
| We studied the contents and distribution characteristcs of total nitrogen(TN), total phosphor(TP), and total organic carbon(TOC) in the surface sediments of southern Shandong adjacent seas. TN, TP and TOC were not very high in these areas. The relative higher districts were at the mouth of the Jiaozhou Bay and northern of the research area. The concentration of TN ranged from 0.31 mg/g to 0.75 mg/g with a mean of 0.52 mg/g. TP ranged from 0.18 mg/g to 0.32 mg/g with a mean of 0.24 mg/g. TOC ranged from 0.17% to 0.49% with a mean of 0.33%. The correlation analysis showed that TOC and TN had relatively better result. The ratio of TOC/TN was a little higher than the Redfield ratio, which means these two biogenic factor may come from the same source. |
| Key words: Shandong adjacent sea sediments total nitrogen total phosphor total organic carbon |
