| 沉水植物对水体pH值的影响及其脱氮作用 |
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| 引用本文： | 赵联芳,朱伟,莫妙兴.沉水植物对水体pH值的影响及其脱氮作用[J].水资源保护,2008,24(6):64-67. |
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| 作者姓名： | 赵联芳 朱伟 莫妙兴 |
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| 作者单位： | 1. 河海大学环境科学与工程学院,江苏,南京,210098
2. 河海大学环境科学与工程学院,江苏,南京,210098;水资源高效利用与工程安全国家工程研究中心,江苏,南京,210098 |
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| 摘 要： | 研究了伊乐藻和菹草光合作用对水中pH值的改变及其对脱氮作用的影响。实验结果表明,伊乐藻和菹草处理组中的pH值升高,促进了氮的去除;伊乐藻比菹草有更强的脱氮能力,其在12 d内去除的总氮量高于菹草25 d内的去除量;植物生物量较大时,pH值发生较小的变化即可促进系统中氮的去除。试验条件下,生物量越大,则对氮的去除率越大。
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| 关 键 词： | 沉水植物 pH值 脱氮 伊乐藻 菹草 |
| 修稿时间： | 2008/12/3 0:00:00 |
Effects of submerged macrophytes on pH values and nitrogen removal |
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| ZHAO Lian-fang,ZHU Wei,MO Miao-xing.Effects of submerged macrophytes on pH values and nitrogen removal[J].Water Resources Protection,2008,24(6):64-67. |
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| Authors: | ZHAO Lian-fang ZHU Wei MO Miao-xing |
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| Affiliation: | ZHAO Lian-fang, ZHU Wei, MO Miao-xing (1. College of Environmental Science and Engineering, Hohai University, Nanjing 210098, China; 2. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Nanfing 210098, China ) |
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| Abstract: | The effects of the photosynthesis of Elodea nuttallii and Potamogetor crispus on pH value and nitrogen removal were studied.The experimental results show that the removal efficiency of nitrogen increases along with the pH value. Compared with Potamogetor crispus,Elodea nuttallii is more efficient in nitrogen removal: the amount of total nitrogen removed by it in 12 days is higher than that removed by Potamogetor crispus in 25 days.When there is significant biomass of submerged macrophytes,nitrogen removal will occur with a small variation of pH value.The nitrogen removal rates increase along with the biomass. |
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| Keywords: | submerged macrophytes pH value nitrogen removal Elodea nuttallii Potamogeton crispus |
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