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太湖北部不同湖区春、夏季溶解性酸性多糖分布

刘丽贞 秦伯强 吴 攀 牛 城 张运林 黄 琪 邓建明

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.
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.
LIU Li-zhen, QIN Bo-qiang, WU Pan, NIU Cheng, ZHANG Yun-Lin, HUANG Qi, 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.
Citation: LIU Li-zhen, QIN Bo-qiang, WU Pan, NIU Cheng, ZHANG Yun-Lin, HUANG Qi, 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.

太湖北部不同湖区春、夏季溶解性酸性多糖分布

基金项目: 国家自然科学基金项目(41230744,5); 国家水体污染控制与治理科技重大专项(2012ZX07101-010)

Study on the Dissolved Acidic Polysaccharides at Different Lake Areas in the Northern Lake Taihu in Spring and Summer

  • 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3.02~9.93mg/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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出版历程
  • 收稿日期:  2013-04-28
  • 修回日期:  2013-07-11
  • 刊出日期:  2013-09-25

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