Effect of Eichhornia crassipes on production of N2 by denitrification in eutrophic water
Effect of Eichhornia crassipes on production of N2 by denitrification in eutrophic water
复制标题
凤眼莲对富营养化水体反硝化产氮的影响
DOI：
10.1016/j.ecoleng.2014.01.002
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发表时间：
2014-07-01
影响因子：
3.8
通讯作者：
Yan, Shaohua
中科院分区：
文献类型：
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作者：
Gao, Yan;Yi, Neng;Yan, Shaohua
浮游水生植物可能通过反硝化作用促进富营养化水体中气态氮的产生。为了验证这一假设，采用改进的浮箱法直接测量了有或没有凤眼莲生长的富营养化水体中N-2和N2O的产生。测定了凤眼莲根面和水体中的反硝化细菌的丰度。文中还分析了凤尾藻与底泥在调节富营养化水体中N-2生成方面的相互作用。在12天的实验期间，N-15在N-2-N超标百分率时的值显著(p<0.05)。
The floating aquatic macrophyte may stimulate the gaseous nitrogen production via denitrificaiton in eutrophic water. In order to justify this hypothesis, an improved floating-chamber method was deployed to directly measure the productions of N-2 and N2O from the eutrophic water with or without growth of Eichhornia crassipes. The abundance of denitrifiers attached to E. crassipes root surface and in the water was measured. The interactions between E. crassipes and sediment on mediating N-2 production in eutrophic water were also analyzed. Within the experimental duration of 12 days, the values of N-15 at.% excess of N-2-N were significantly (p