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.
出处
《湖北大学学报(自然科学版)》
CAS
北大核心
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
关键词
富营养化
浮床
柳树
总氮
总磷
eutrophicatiom floating bed Salix babylonica Linn TN TP