[目的]研究3种水培蔬菜时富营养化水体的净化效果,以期为富营养化水体的植物生态修复提供理论依据.[方法]以生菜、包菜和油麦菜3种常见蔬菜为试验材料进行水培生长试验,通过对氨氮(NH-N)、活性磷(SOP)和高锰酸盐指数(I)等富营养化指标的测定研究3种蔬菜对富营养化水体的净化效果.[结果]在富营养化水体中,生菜的生长状况最佳,包菜次之,油麦菜最差,这表明生菜和包菜可以较好地适应富营养化水培生长;对富营养化水体中NH-N和I去除率最高的是生菜(92%和86%),对SOP 去除率最高的是包菜(92%),而油麦菜对这3个指标的去除率均最低.[结论]生菜和包菜对富营化水体的净化效果较好,具有一定的推广应用价值.%[ Objective] The purification effect of three hydroponic vegetables on eutrophic water was studied to provide theoretical basis for the plant ecological restoration of eutrophic water. [ Method] Hydroponics test was carried out using lettuce,cabbage and leaf lettuce as materials,and the purification effect of three hydroponic vegetables on eutrophic water was studied through determining ammonia nitrogen (NH4 +-N ), soluble organic phosphorus (SOP) and permanganate index (IMn). [ Result] In eutrophic water,lettuce grew beast,and next came cabbage,while leaf lettuce was the poorest,which showed that lettuce and cabbage could grow well in eutrophic water; lettuce had the highest removal rate of NH4 + -N and IMn in eutrophic water (92％ and 86％ ) ,and the removal rate of SOP by cabbage was highest,while leaf lettuce had the lowest removal rate of three indexes. [ Conclusion] The purification effect of lettuce and cabbage on eutrophic water was better with certain popularization value.
展开▼
