| 白车轴草对冬季富营养化水体总磷净化效果研究 |
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| 引用本文： | 税永红,余江,郑雄,刘妙丽.白车轴草对冬季富营养化水体总磷净化效果研究[J].中国水土保持,2010(11):43-45. |
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| 作者姓名： | 税永红 余江 郑雄 刘妙丽 |
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| 作者单位： | [1]成都纺织高等专科学校染化与环境工程系,四川成都611731 [2]四川大学建筑与环境学院,四川成都610065 |
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| 基金项目： | 四川省教育厅自然科学青年基金项目，成都纺织高等专科学校科研项目，四川大学青年教师科研启动基金项目 |
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| 摘 要： | 冬季是大多数水生植物处于衰亡的时期,植物资源匮乏,不利于植物对富营养化水体的周年净化,因此筛选适合于水生的旱生植物来修复富营养化水体是生态修复的发展方向。采用水盆浮板栽培技术,首次研究了白车轴草(Tri-folium repens Linn.)在冬季对成都犀池富营养化人工湖泊中主要元素磷的净化效果及动态过程,并与凤眼莲(Eichhorniacrassipes Solms.)的净化效果进行了对比。结果表明,浮板白车轴草在试验期间生长良好,对富营养化水体中总磷具有非常明显的净化效果,当投放量为1.25 g/L时,对总磷的去除率48 d内可达80%,并且重复性好,对总磷的去除过程拟合曲线符合三次方程。与凤眼莲相比较,白车轴草在冬季更易存活且对磷的净化效果更佳。
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| 关 键 词： | 白车轴草 总磷 富营养化水体 净化效果 冬季 |
Influence of Trifolium Repens to Total Phosphorus Purification of Eutrophic Water in Winter |
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| Abstract: | In winter,the majority aquatic plants become extinct,that is unfavorable to eutrophic water purification by plants yearly.Selecting xerophyte that can be suit to aquatic environment for purifying eutrophic water is the research orientation of ecological rehabilitation.It is the first time to study on purification effect and dynamic process of Trifolium repens for phosphorus purification which is the main element in eutrophic water of Xichi artificial lake in Chengdu in winter,comparing with the purification effect of Eichhornia crassipes The outcomes show that the Trifolium repens grows well during the experiment and has obvious purification effect in eutrophic water with TP.The removal rate of TP can reach to 80% and has better repeatability during 48 days when the amount of Trifolium repens is 1.25 g/L.The fitting curve of the removal process of TP is in line with cubic equation.Comparing with Eichhornia crassipes,the survival of Trifolium repens is easier in winter and it's purification effect is better. |
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| Keywords: | Trifolium repens TP eutrophic water purification effect winter |
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