摘要
本研究以福建地区比较常见的3种观赏草旱伞草(Cyperus alternifolius)、狼尾草(Pennisetum alopecuroides)和麦冬(Ophiopogon japonicus)为研究对象,应用浸泡法分别测定3种观赏草根、茎、叶的持水量并进行分析。研究表明,3种观赏草的持水性能存在差异,其中狼尾草的持水性能最强。观赏草的各部位持水性同样存在差异,浸泡时间与持水率呈极显著正相关关系,与吸水速率呈极显著负相关关系(P<0.001)。3种观赏草均有良好的持水性能,对园林造景和生态保护具有积极的作用。
Three common ornamental grasses Cyperus alternifolius, Penniseturn alopecuroides and Ophio- pogon japonicus in Fujian were studied and the soaking method was applied in determining and analyzing the water-holding capacity of their roots, stems and leaves. P. alopecuroide was proved to have the highest water-holding capacity and the rest two were generally lower in water-holding rate. In various soaking periods, the water-holding rates had significantly positive correlation with the soaking time while the water-holding rate showed significantly negative correlation. The results showed that three kinds of orna- mental grass had good water-holding capacity, there were the positive effect on landscape gardening and ecological protection.
出处
《草业科学》
CAS
CSCD
北大核心
2013年第8期1156-1160,共5页
Pratacultural Science
基金
国家自然科学基金项目(31100303)
关键词
持水率
吸水速率
旱伞草
狼尾草
麦冬
water-holding rate
water absorbing rate
Cyperus alternifolius
Pennisetum alopecuroides
Ophiopogon japonicus
