| 太湖草型湖区沉积物中生物易降解物质组成与分布规律 |
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| 引用本文： | 祁闯,方家琪,张利民,司泽君,黄和笑,王卓森,李翔,王磊,王国祥.太湖草型湖区沉积物中生物易降解物质组成与分布规律[J].环境科学,2019,40(10):4505-4512. |
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| 作者姓名： | 祁闯 方家琪 张利民 司泽君 黄和笑 王卓森 李翔 王磊 王国祥 |
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| 作者单位： | 南京师范大学环境学院,南京,210097;南京师范大学环境学院,南京210097;江苏省地理信息资源开发与利用协同创新中心,江苏省环境演变与生态建设重点实验室,江苏省水土环境生态修复工程实验室,南京 210023;华东师范大学计算机科学与软件工程学院,上海,200062 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2017ZX07203-003，2017ZX07202-004）；国家自然科学基金项目（41703105，41573061）；江苏省研究生科研创新计划项目（KYCX17_1065） |
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| 摘 要： | 为研究富营养化条件下草型湖区水生植物碎屑快速沉积对沉积物中有机质组成及营养状态的影响,选取太湖胥口湾为研究区,采集沉积物柱状样,探究沉积物中色素、碳、氮、磷及生物易降解物质的组成和分布规律.结果表明,胥口湾沉积物中色素、碳、氮、磷及生物易降解物质整体表现为表层富集特征,主要集中在沉积物表层15 cm;沉积物中氮负荷高于磷负荷,且存在显著的空间差异性;沉积物TN含量在127. 2～2 092. 8 mg·kg~(-1),沉积物TP含量在222. 1～528. 4 mg·kg~(-1),水生植物分布区(1 033. 6 mg·kg~(-1))氮负荷显著高于无植被区(325. 2 mg·kg~(-1)).沉积物中生物易降解物质以糖类(3. 7 mg·g-1)为主,其次是脂类(2. 8 mg·g-1)和蛋白质(2. 3 mg·g-1);水生植物碎屑残体是沉积物中营养盐和易降解有机质的主要来源,水生植物分布区沉积物中色素、碳、氮、磷及生物易降解有机质含量均显著高于无植被区(P 0. 01);胥口湾沉积物逐渐由中营养状态向富营养状态过渡,整体已经趋向于富营养化状态,在今后的湖泊管理和调控过程中需予以关注.
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| 关 键 词： | 太湖 生物易降解物质 草型湖区 沉积物 营养盐 |
| 收稿时间： | 2019/3/29 0:00:00 |
| 修稿时间： | 2019/5/16 0:00:00 |
Composition and Distribution of Biodegradable Compounds in the Macrophyte Dominated Zone of Lake Taihu |
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| QI Chuang,FANG Jia-qi,ZHANG Li-min,SI Ze-jun,HUANG He-xiao,WANG Zhuo-sen,LI Xiang,WANG Lei and WANG Guo-xiang.Composition and Distribution of Biodegradable Compounds in the Macrophyte Dominated Zone of Lake Taihu[J].Chinese Journal of Environmental Science,2019,40(10):4505-4512. |
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| Authors: | QI Chuang FANG Jia-qi ZHANG Li-min SI Ze-jun HUANG He-xiao WANG Zhuo-sen LI Xiang WANG Lei and WANG Guo-xiang |
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| Institution: | School of Environment, Nanjing Normal University, Nanjing 210097, China,School of Environment, Nanjing Normal University, Nanjing 210097, China,School of Environment, Nanjing Normal University, Nanjing 210097, China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Jiangsu Engineering Laboratory of Water and Soil Eco-remediation, Nanjing 210023, China,School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062, China,School of Environment, Nanjing Normal University, Nanjing 210097, China,School of Environment, Nanjing Normal University, Nanjing 210097, China,School of Environment, Nanjing Normal University, Nanjing 210097, China,School of Environment, Nanjing Normal University, Nanjing 210097, China and School of Environment, Nanjing Normal University, Nanjing 210097, China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Jiangsu Engineering Laboratory of Water and Soil Eco-remediation, Nanjing 210023, China |
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| Abstract: | |
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| Keywords: | Taihu Lake biodegradable compounds macrophyte-dominated zone sediment nutrient |
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