摘要
将南方常见的18种园林绿化植物置于不同的pH值酸雨条件下进行模拟酸雨试验,结果表明.1)不同浓度的酸雨对植物的影响不同,表现为随着pH值降低植物的伤害程度越大,但18种园林绿化植物对pH3.5以上的酸雨具有较强的抗性.2)18种园林绿化植物对酸雨抗性按强弱顺序依次为构骨、海桐、柳杉、竹柏、短叶罗汉松、棕榈、佛肚竹、紫玉兰、桂花、羊蹄甲、含笑、云南黄素馨、沿阶草、鸡爪槭、马缨丹、杜鹃、石榴、九里香.3)18种园林绿化植物受到酸雨危害其表现的症状变化规律性不同,有些植物受害变化急剧,如含笑、棕榈、杜鹃;有些植物在处理初期受害比较轻,但经一定的时间后伤害程度一下变得急剧,如紫玉兰;有些是一下子伤害到较大程度,如马缨丹、沿阶草、九里香、羊蹄甲、云南黄素馨、石榴;有些植物受害变化缓慢,过较长时间才有症状,抗性较强,如构骨、海桐、竹柏等.
Simulated experiments were made for 18 common gardens plants of southern China under the condition of different pH The results show that: 1) The effects caused by acid rain of different concentration on different species were different The lower the pH is,the more serious damage it will causeBut these species have better fastness against the acid rain of above pH352) According to their fastness the order is:Ilex cornuta>Pittpsporum tobira>Cryptomeria \{fortune>\}Podocarpus nagi>Podocarpus macrophyllus>Trachycarpus fortunei>Bambusa ventricosa>Magnolia liliflora Desr>Osmanthus fragrans>Bauhinia purpure >Michelia figo>Jasminum nudiflorum>Ophiopogon bodinieri Levl>Acer palmatum>Lantana camara>Rhododendron simsii>Punica grannatum>Murraya paniculata 3) The rules of symptoms of the injured species are different Some species change dramatically,such as Michelia figo,Rhododendron simsii Podocarpus macrophyllus Some species such as Magnolia liliflora Desr show a little symptom at first,but after some time,they become worse Some species,for example Jasminum nudiflorum,Lantana camara L.injured,Murraya paniculata,Bauhinia purpurea,Ophiopogon bodinieri Levl damage to a large extend in short time But to the species of Ilex cornuta, Pittpsporum tobira,Podocarpus nagiagrans,the changes are very slow and the symptoms will be shown after a long time.
出处
《福建林学院学报》
CSCD
北大核心
2003年第1期9-13,共5页
Journal of Fujian College of Forestry
基金
福建省教育委员会科学基金资助项目(JQ92005).
