华南地区7种常见园林地被植物水分适应性研究  

Study on Water Adaptability of Seven Common Species of Ground Cover Plants in South China

作　　者：钱瑭璜 雷江丽 庄雪影[3] 

机构地区：[1]深圳市铁汉生态环境股份有限公司,深圳518040 [2]新疆石河,深圳518004 [3]华南农业大学林学院,广州510642

出　　处：《中国园林》2012年第12期95-99,共5页Chinese Landscape Architecture

基　　金：深圳市科技计划项目“耐旱节水型园林地被植物的筛选及应用技术研究”(编号SY200806300276A)资助

摘　　要：以华南地区7种常见园林地被植物为研究对象,通过盆栽控水试验研究,综合比较了不同水分条件下植株的生长量、根冠比、花期、花量、净光合速率日变化、净蒸腾速率日变化等生长及光合指标的变化趋势。结果表明:1)在水分条件下限为土壤持水率的70%～75%时,7种参试植物均有较旺盛的生长势;2)在满足各参试植物园林观赏性的前提下,鹅掌藤(Schefflera arboricola)、蚌花[Rhoeo discolor(L' Hérit.)Hance]和白蝶合果芋(Syngonium podophyllum Schott 'White Butterfly')在水分条件下限为土壤持水率的30%～35%时可以正常生长;而红花龙船花(Ixora coccinea L.)、红背桂(Excoecaria cochinchinensis)、水鬼蕉(Hymenocallis littoralis)和肾蕨(Nephrolepis auriculata)在水分条件下限为土壤持水率的50%～55%时可以正常生长。Water adaptability of seven common ground cover plants in South China were studied by pot experiment. The effect of biomass increment, root-crown ratio, florescence, diurnal variations of net photosynthetic rate and diurnal variations of net transpiration rate were determined in different soil water content. The experimental results showed that 7 ground cover plants could grow strongly in the soil with the water holding rate above 70% to 75%. Schel^era arboricola, Rhoeo discolor （L＇H6rit.） Hance and Syngonium podophyllum Schott ＇White Butterfly＇ could grow well and possess good ornamental value in the soil with minimum water holding rates of 30% to 35%; lxora coccinea L., Excoecaria cochinchinensis, Hymenocallis littoralis and Nephrolepis auriculata could grow well in the soil with minimum water holding rates of 50% to 55%.

关 键 词：园林植物 地被 生长指标 光合指标 水分适应性 

分 类 号：S688[农业科学—观赏园艺]