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首页> 外文期刊>Fresenius Environmental Bulletin >POSITIVE EFFECTS OF PLANT SPECIES DIVERSITY ON SUBSTRATE NITROGEN MINERALIZATION IN A FULL-SCALE CONSTRUCTED WETLAND
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POSITIVE EFFECTS OF PLANT SPECIES DIVERSITY ON SUBSTRATE NITROGEN MINERALIZATION IN A FULL-SCALE CONSTRUCTED WETLAND

机译：大型人工湿地中植物物种多样性对基质氮矿化的积极影响

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摘要

Most terrestrial ecosystems is nitrogen (N)-limited, and N mineralization is the important processes in N cycle in these systems. We studied the effects of plant diversity on substrate N mineralization by buried bag culture method in a subsurface vertical flow constructed wetland near Zhoushan City, Zhejiang Province in southeastern China. The results showed that plant species diversity had significant positive effects on substrate mineralization rate, nitrification rate and relative nitrification, but the functional group diversity had no significant effects. Meanwhile, the substrate initial inorganic N (nitrate and ammonium) and mineralization rate had significant linear correlations. In addition, the substrate initial nitrate before incubation increased with the increasing of plant species diversity, while the initial ammonium did not. Therefore, plant species diversity should be designed in constructed wetlands to improve the efficiencies of wastewater treatment for greater species diversity leading to higher substrate N mineralization.
机译：大多数陆地生态系统受氮（N）限制，而氮矿化是这些系统中氮循环的重要过程。我们在中国东南部浙江省舟山市附近的地下垂直流人工湿地中，通过埋袋培养法研究了植物多样性对基质氮矿化的影响。结果表明，植物物种多样性对底物矿化率，硝化率和相对硝化作用具有显着的正效应，而功能基团的多样性无显着影响。同时，基质的初始无机氮（硝酸盐和铵盐）与矿化速率具有显着的线性相关性。此外，孵育前底物的初始硝酸盐随植物物种多样性的增加而增加，而初始铵则没有。因此，应在人工湿地中设计植物物种多样性，以提高废水处理效率，以实现更大的物种多样性，从而导致更高的底物氮矿化。

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  • 来源
    《Fresenius Environmental Bulletin》 |2012年第6b期|p.1689-1694|共6页
  • 作者

    Si-Xi Zhu; Jie Chang; Ying Ge; Hai Wang; Feng-You Wang; Jian-Ming Zhang; Hua-Zhong He;

  • 作者单位

    Guizhou Mingzu University College of Chemistry and Environmental Science Guiyang 550025 P.R. CHINA and Zhejiang University College of Life Sciences Hangzhou 310058 P.R. CHINA;

    College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China;

    College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China;

    College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China;

    College of Chemistry and Environmental Science, Guizhou Minzu University, Guiyang 550025, PR China;

    Hydrochina Guiyang Engineering Corporation, Guiyang 550081, PR China;

    College of Chemistry and Environmental Science, Guizhou Minzu University, Guiyang 550025, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    constructed wetlands; nitrogen mineralization; plant species diversity; wastewater treatment; nitrification;

    机译：人工湿地;氮矿化植物物种多样性;废水处理;硝化作用;

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