| 颤蚓生物扰动对沉积物氮释放的影响 |
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| 引用本文： | 聂小保,吴淑娟,吴方同,孙士权,蒋昌波,谭万春,万俊力.颤蚓生物扰动对沉积物氮释放的影响[J].环境科学学报,2011,31(1):107-113. |
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| 作者姓名： | 聂小保 吴淑娟 吴方同 孙士权 蒋昌波 谭万春 万俊力 |
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| 作者单位： | 长沙理工大学水利工程学院,长沙,410076 |
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| 摘 要： | 通过实验室模拟沉积物中颤蚓生物扰动过程,研究了生物扰动对沉积物TN释放的影响,并探讨了温度、pH和DO对颤蚓生物扰动作用下TN释放过程的影响.结果表明,颤蚓生物扰动能促进沉积物TN释放,且促进效果随颤蚓密度的增加而提高.适当地提高温度有助于颤蚓快速生长,提高生物扰动对TN释放的促进效果,温度由15℃提高到25℃,上覆水...
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| 关 键 词： | 颤蚓 生物扰动 沉积物 总氮释放 |
| 收稿时间： | 5/4/2010 4:18:09 PM |
| 修稿时间： | 7/28/2010 4:53:30 PM |
Effects of the bioturbation activity of Tubifex tubifex on nitrogen release from sediments |
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| NIE Xiaobao,WU Shujuan,WU Fangtong,SUN Shiquan,JIANG Changbo,TAN Wanchun and WAN Junli.Effects of the bioturbation activity of Tubifex tubifex on nitrogen release from sediments[J].Acta Scientiae Circumstantiae,2011,31(1):107-113. |
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| Authors: | NIE Xiaobao WU Shujuan WU Fangtong SUN Shiquan JIANG Changbo TAN Wanchun and WAN Junli |
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| Institution: | NIE Xiaobao,WU Shujuan,WU Fangtong,SUN Shiquan,JIANG Changbo,TAN Wanchun,WAN Junli School of Hydraulic Engineering,Changsha University of Science & Technology,Changsha 410076Received 4 May 2010,received in revised form 27 May 2010,accepted 7 June 2010 |
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| Abstract: | By simulating the bioturbation activity of T. tubifex in laboratory,the effects of bioturbation on TN release from sediments were studied. The influence of temperature,pH and dissolved oxygen (DO) on TN release during bioturbation of the sediments by T. tubifex was investigated. The results indicated that bioturbation of T. tubifex promoted TN release of sediments and the effect increased with increased density of T. tubifex. Higher temperatures increased the growth rate of T. tubifex,which promoted bioturb... |
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| Keywords: | T tubifex bioturbation sediment TN release |
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