摘要
通过模拟流水的小型无基质试验 ,研究了杭州地区 1 7种草本植物在轻度和重度富营养化水中的净化能力及其与生物量、生长速率和蒸散强度等的关系。结果表明 :( 1 )在重度富营养化水中 ,提高植物生物量可大大提高对 N和 P等的去除率 ;( 2 )在轻度富营养化水中 ,同种植物不同生物量对各指标去除率的差异小于种类间净化能力的差异 ,选择高净化能力的种类更重要 ;( 3)在重度富营养化水净化工程选种中 ,可通过种间生物量和蒸散强度的比较来判断去除率的高低 ,初步筛选净化能力强的种类 ;在轻度富营养化水中 ,可通过植物在水中快速生长时期的生长速率判断其净化能力。
The relationship between the purification ability and the biomass, growth rate, evapotranspiration of 17 plant species of plants in heavy and light eutrophic water was studied through the minitype non matrix experiment of imitates glide state. Results showed that: (1)In heavy eutrophic water, improving plant biomass could increase the removal rates of N and P.(2) In light eutrophic water,the difference of removal rates caused by biomass in the same species of plant were less than that of different species. To select the species with high purification ability is more important in this condition. (3) In heavy eutrophic water, the plant used for purification engineering in heavy eutrophic water could be selected by comparison of biomass and evaporation rates among the species; while in light eutrophic water, plant species could be selected by comparison of growth rates of the plants within the quick growth period.
出处
《生态学报》
CAS
CSCD
北大核心
2000年第6期1050-1055,共6页
Acta Ecologica Sinica
基金
欧洲联盟资助项目项目号:ERBIC18CT960059
关键词
富营养化水
植物
生理生态特性
净化能力
eutrophic water
plant
physioecological characters
purification ability
easy method for species selection
