| 里下河地区代表性浅水湖泊表层沉积物可转化态氮的赋存特征 |
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| 引用本文： | 燕文明,刘凌,周利,梁朝荣,黄列,张志浩.里下河地区代表性浅水湖泊表层沉积物可转化态氮的赋存特征[J].水资源保护,2015,31(5):30-34. |
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| 作者姓名： | 燕文明 刘凌 周利 梁朝荣 黄列 张志浩 |
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| 作者单位： | 河海大学水文水资源与水利工程科学国家重点实验室, 江苏 南京 210098; 河海大学水文水资源学院, 江苏 南京 210098,河海大学水文水资源与水利工程科学国家重点实验室, 江苏 南京 210098; 河海大学水文水资源学院, 江苏 南京 210098,盐城市水利勘测设计研究院, 江苏 盐城 224002,河海大学水文水资源学院, 江苏 南京 210098,河海大学水文水资源学院, 江苏 南京 210098,河海大学水文水资源学院, 江苏 南京 210098 |
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| 基金项目： | 国家自然科学基金(41301531, 51279060) |
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| 摘 要： | 以受人类活动影响剧烈的小型富营养化湖泊为研究对象,研究湖泊表层沉积物可转化态氮的赋存特征,探索环境因子与各形态可转化态氮之间的关系。结果表明:14个湖泊表层沉积物中各形态可转化态氮质量比次序为强氧化剂可提取态氮(SOEF-N)离子交换态氮(IEF-N)弱酸提取态氮(WAEF-N)强碱可浸取态氮(SAEF-N);2w(IEF-N)与黏粒、壤粒、砂粒、w(Ca)呈显著的相关性;w(WAEF-N)与含水率、w(有机质)、w(TP)、w(Ca)、w(Zn)呈显著相关性;w(SOEF-N)与黏粒、w(有机质)、w(TOC)、w(NH+4)、w(Mn)呈显著的相关性;w(SAEF-N)仅与w(TP)和w(Ca)存在一定的相关性。3受人类活动影响较大的湖泊w(IEF-N)和所占TN百分比最高;表层沉积物中的w(WAEF-N)与w(有机质)多寡一致。
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| 关 键 词： | 里下河地区 浅水湖泊 表层沉积物 可转化态氮 赋存特征 |
| 收稿时间： | 2014/12/19 0:00:00 |
Occurrence characteristic of transferable nitrogen forms in sediments on surface of representative shallow lakes of Lixiahe Region |
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| YAN Wenming,LIU Ling,ZHOU Li,LIANG Chaorong,HUANG Lie and ZHANG Zhihao.Occurrence characteristic of transferable nitrogen forms in sediments on surface of representative shallow lakes of Lixiahe Region[J].Water Resources Protection,2015,31(5):30-34. |
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| Authors: | YAN Wenming LIU Ling ZHOU Li LIANG Chaorong HUANG Lie and ZHANG Zhihao |
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| Affiliation: | State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210098, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210098, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China,Water Conservancy Survey and Design Institute of Yancheng City, Yancheng 224002, China,College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China,College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China and College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China |
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| Abstract: | Taking the small eutrophic lake, which is seriously affected by human activities, as the research object, the occurrence characteristic of transferable nitrogen forms in the sediments on the surface of the lake is studied and the relationship between environmental factors and various forms of transferable nitrogen is explored. The results indicate that: (1)the distribution order of various nitrogen in the four sediments samples from the lake surface was SOEF-N> IEF-N> WAEF-N> SAEF-N; (2)There is obvious relevance between w(IEF-N)and clay, soil, sand and w(Ca); There is obvious relevance between w(WAEF-N)and moisture content, organic matter, w(TP), w(Ca)and w(Zn); There is obvious relevance between w(SOEF-N)and clay, organic matter, w(TOC), w(NH+4)and w(Mn); There is only certain relevance between w(SAEF-N)and w(TP)and w(Ca). (3)w(IEF-N)hold the dominance percentage in TN in big lakes significantly affected by human activity; while the content of WAEF-N is consistent with the amount of organic matter content in the surface sediments. |
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| Keywords: | Lixiahe region shallow lake surface sediment transferable nitrogen occurrence characteristic |
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