| 太湖北部不同湖区春、夏季溶解性酸性多糖分布 |
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| 引用本文： | 刘丽贞,秦伯强,吴 攀,牛 城,张运林,黄 琪,邓建明.太湖北部不同湖区春、夏季溶解性酸性多糖分布[J].环境科学研究,2013,26(9):966-971. |
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| 作者姓名： | 刘丽贞 秦伯强 吴 攀 牛 城 张运林 黄 琪 邓建明 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室,江苏南京210008 |
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| 基金项目： | 国家自然科学基金项目，国家水体污染控制与治理科技重大专项 |
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| 摘 要： | 为研究太湖dAPS(dissolved acidic polysaccharides,溶解性酸性多糖)的时空变化,探讨湖泊水体中dAPS对有机碳的贡献和重要性,于2012年春、夏季调查了太湖北部不同湖区(竺山湾、梅梁湾、贡湖湾、湖心区)水体中ρ(dAPS),分析了其时空变化特征及其与ρ(Chla)之间的关系,并探讨了不同湖湾中dAPS对DOC(溶解性有机碳)的贡献率.结果表明,太湖北部水体中ρ(dAPS)春、夏季变化范围为3.02～9.93 mg/L,平均值为(6.10±1.59) mg/L.夏季太湖北部各湖区之间ρ(dAPS)没有显著性差异,春季梅梁湾中ρ (dAPS)显著高于湖心区(P＜0.05),其他湖区并没有显著性差异.春、夏两季ρ(dAPS)的最低值均出现在湖心区.除贡湖湾外,夏季太湖北部各湖区ρ(dAPS)与ρ(Chla)都存在显著线性正相关,而春季各湖区则无显著线性关系.这说明春、夏季dAPS的受控因素不一样,夏季ρ(dAPS)受藻类影响较大.夏季各湖区dAPS对DOC的贡献率以贡湖湾最高,平均值高达46.7％±7.7％,春季则以梅梁湾的贡献率较高,平均值为68.6％±5.9％,这意味着dAPS在太湖水体有机碳循环中起着重要的作用.
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| 关 键 词： | 酸性多糖 叶绿素a 溶解性有机碳 太湖 |
| 收稿时间： | 2013/4/28 0:00:00 |
| 修稿时间： | 2013/7/11 0:00:00 |
Study on the Dissolved Acidic Polysaccharides at Different Lake Areas in the Northern Lake Taihu in Spring and Summer |
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| LIU Li-zhen,QIN Bo-qiang,WU Pan,NIU Cheng,ZHANG Yun-Lin,HUANG Qi and DENG Jian-Ming.Study on the Dissolved Acidic Polysaccharides at Different Lake Areas in the Northern Lake Taihu in Spring and Summer[J].Research of Environmental Sciences,2013,26(9):966-971. |
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| Authors: | LIU Li-zhen QIN Bo-qiang WU Pan NIU Cheng ZHANG Yun-Lin HUANG Qi and DENG Jian-Ming |
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| Institution: | State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China,State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China and State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,China |
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| Abstract: | |
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| Keywords: | acidic polysaccharides chlorophyll-a dissolved organic carbon Lake Taihu |
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