<正>对8种园林树种周围空气中的负离子水平进行研究,结果表明:不同树种周围空气负离子水平差异显著,参试的8种园林树种周围空气中负离子水平排序依次为:沉水樟、罗汉松、乐东拟单性木兰、木莲、南方木莲、金叶含笑、乐昌含笑、中国鹅掌楸;森林环境中空气负离子浓度与环境温度呈极显著负相关关系,与空气相对湿度呈显著正相关关系;同一树种周围环境中空气负离子浓度呈现规律性变化。

To study the effects of aeroanion concentration surrounding 8 landscape trees,It shows that the aeroanion concentration are significant difference.For these 8 trees,the order of their aeroanion concentration surrounding is Cinnamomum micranthum,Podocarpus macrophyllus,Parakmeria lotungensis,Manglietia fordiana,Manglietia chingii,Michelia foveolata,Michelia chapensis,Liriodendron chinense.The concentrations of aeroanion in forest are significantly different by negative relation to the environment temperature,while it is different by positive relation to the atmosphere humidity.As for one tree species,the aeroanion concentration surrounding shows regular variety.