浮床栽培柳树在富营养化水体中的生长特性及水质净化效果研究  

Study on the growth characteristic of willow(Salix babylonica Linn) planted on floating bed and its purification efficiency in eutrophicated water body

作　　者：林惠凤[1] 黄婧[1] 朱联东[1] 李兆华[1] 

机构地区：[1]湖北大学资源环境学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2009年第2期210-212,共3页Journal of Hubei University：Natural Science

基　　金：国家星火计划(2007EA761001);水利部江湖治理与防洪重点实验室开放基金项目(2007-07)资助

摘　　要：以浮床水培柳树(Salix babylonicaLinn)为对象,研究其在富营养化水体中2 a积累的生物量、株高与生物量关系以及植物体对N、P的吸收情况.结果显示,柳树从种子到幼苗的过程中所积累的生物量鲜重平均为789 g/株.2 a内,在种植密度为12.5株/m2的浮床上,每平方米柳树浮床能将34.2 m3的水从Ⅴ类水净化为Ⅲ类水质(以TP计).柳树对富营养化水体的修复进程相对缓慢,但易于管理,适宜于水体的长期净化.The study was conducted on willow （Salix babylonica Linn. ） planted on the floating bed in terms of biomass, relation between biomass and height, and the removing efficiency of N and P from the eutrophicated water body. Results showed that the average accumulative biomass of willow planted on the floating bed from seed to young tree within two years was of 789 g/individule when they were planted with a density of 12. 5 ind./m^2. Within two years, averagely each square meter of willow floating bed was able to purify 34. 2 ma from grade Ⅴ to grade Ⅲ in Chinese water quality classification system. The willow cleaned the water slowly but easy for management. It was suitable for purifying the eutrophicated water body for a long run.

关 键 词：富营养化 浮床 柳树 总氮 总磷 

分 类 号：X171[环境科学与工程—环境科学]