摘要
为富营养化景观水体筛选出冬季净化能力强的植物种类,在冬季低温条件下,以红梗叶甜菜、羽衣甘蓝、红花石蒜3种观赏植物为试材,制成植物浮床,研究3种植物以及无植物浮床对城市景观污染水体中氮、磷的净化效果,试验共持续60天。结果表明:在冬季低温条件下,3种植物在富营养化水体中均生长良好,红梗叶甜菜、羽衣甘蓝、红花石蒜对水体中TN的去除率分别为64.0%,53.0%和32.9%,远高于对照组的去除率(20.04%),3种植物对水体中NH3-N的去除率分别为93.1%,88.4%,75.3%,去除率显著大于对照组,为冬季浮床植物的选择提供了依据。
To select suitable plants for use in purified eutrophicated landscape water in winter, three kinds of ecological floating beds were made of Beta vulgaris, Brassica oleracea var.acephala, Lycoris radiata , respectively, to study their effects on removing nitrogen and phosphorus from eutrophicated landscape water under lower temperature condition in winter. The experiment lasted 60 days. The results indicated that three ornamental plants were adaptable to grow in the eutrophicated landscape water. Three plants had good removal effects on the CODCr、TN、TP、and NH3-N, which were higher than the control treatment. The removal rates of N byBeta vulgaris, Brassica oleracea, Lycoris radiata were 64.0%, 53.0%, 32.9%, respectively, all of which were higher than the control （20.04%）. The removal rates of NH3-N were 93.1%, 88.4%, 75.3%, espectively. The investigation will offer a reason for the choice of floating bed plant in winter.
出处
《中国农学通报》
CSCD
北大核心
2010年第10期242-245,共4页
Chinese Agricultural Science Bulletin
基金
湖南省教育厅科研项目"生态浮床净化城市景观水体的植物筛选及模式研究"(08D011)
关键词
红梗叶甜菜
羽衣甘蓝
红花石蒜
景观富营养化水体
净化效果
冬季
Beta vulgaris
Brassica oleracea var.acephala
Lycoris radiata
eutrophicated landscape water
purification efficiency
winter
