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| 常见水生植物对农田退水中总氮和总磷的净化能力研究 | |
| 引用本文： | 刘作云,王雅丽,龚道新,焦雨婷.常见水生植物对农田退水中总氮和总磷的净化能力研究[J].湖南农业科学,2012(3):59-61. |
| 作者姓名： | 刘作云 王雅丽 龚道新 焦雨婷 |
| 作者单位： | 1. 湖南农业大学资源环境学院,湖南长沙410128;湖南环境生物职业技术学院,湖南衡阳421005 2. 湖南农业大学资源环境学院,湖南长沙,410128 3. 湖南环境生物职业技术学院,湖南衡阳,421005 |
| 基金项目： | 湖南省教育厅科学研究项目(11C0467) |
| 摘 要： | 为了解常见水生植物对农田退水中总氮(TN)和总磷(TP)的净化作用,通过模拟实验研究了空心菜、紫背浮萍、水芹菜、水浮莲、三叶浮萍和满江红对农田退水中TN和TP的净化能力.结果表明:在处理20 d后,供试水生植物对农田退水中TN的净化率达85.8％～95.6％,净化率大小顺序为:空心菜＞水芹菜＞水浮莲≈紫背浮萍＞满江红≈三叶浮萍；TP的净化率达95.3％～97.2％,净化率大小顺序为:水芹菜＞空心菜＞水浮莲＞紫背浮萍≈三叶浮萍≈满江红.而对照组仅为55.6％(TN)和58.9％(TP).这说明6种供试水生植物对农田退水中TN和TP均有较强的净化能力. |
| 关 键 词： | 总氮 总磷 水生植物 农田退水 净化率 |
Removal Ability of Common Aquatic Plants on Total N and Total P in Farmland Drainage |
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| LIU Zuo-yun , WANG Ya-li , GONG Dao-xin , JIAO Yu-ting.Removal Ability of Common Aquatic Plants on Total N and Total P in Farmland Drainage[J].Hunan Agricultural Sciences,2012(3):59-61. | |
| Authors: | LIU Zuo-yun WANG Ya-li GONG Dao-xin JIAO Yu-ting |
| Institution: | 1.College of Resources and Environment,HNAU,Changsha 410128,PRC; 2.Hunan Environmental and Biological Polytechnic,Hengyang 421005,PRC) |
| Abstract: | In order to research the removal ability of common aquatic plants on TN and TP in farmland drainage,using stimulated experiment to study the removal ability of Ipomoea aquatica Forsk,Spirodela polyrrhiza,Oenanthe javanica,Eichhornia crassipes,Lemma paucicostata and Azolla imbircata on TN and TP in farmland drainage.The results showed that 20 d after treatment applied,these six aquatic plants all had great removal ability on TN and TP in farmland drainage.The removal rates of them on TN were 85.8%~95.6% with a order of Ipomoea aquatica Forsk>Oenanthe javanica>Eichhornia crassipes ≈ Spirodela polyrrhiza>Azolla imbircata ≈ Lemma paucicostata,and the removal rates of them on TP were 95.3%~97.2% with a order of Oenanthe javanica>Ipomoea aquatica Forsk>Eichhornia crassipes>Spirodela polyrrhiza ≈ Lemma paucicostata ≈ Azolla imbircata,while the removal rate of control was only 55.6% on TN and 58.9% on TP. |
| Keywords: | total N total P aquatic plants farmland drainage removal rate |
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