合肥城区园林树种抗风特性研究

Study on Characteristics of Wind Resistance for Garden Trees in Hefei City

随着全球气候的异常变化,灾害性天气频发。该研究通过调查合肥市2009年初夏大风灾害性天气对合肥城区园林树种的影响,结果表明:共17种树木受损,其中雪松、重阳木抗风性差;香樟、刺槐抗风性较差;女贞、乌桕、悬铃木等抗风性中等;泡桐、三角枫、国槐等抗风性较好;喜树、悬铃木、三角枫等17种树木在胸径21~40cm范围抗风性较差,在其他胸径范围抗风性较好;大部分受损树木的枝条抗风性差,泡桐、重阳木、水杉等树干抗风性差。该研究旨在为现有园林树种的保护及将来城市绿地系统规划树种的选择提供理论依据。

With global climate changing exceptionally,disastrous weather occurs frequently.The survey of the garden trees in Anhui Agricultural University shows there are 17 species damaged after wind damage.The ability in wind resistance for them is different,Cedrus deodara,Bischofia polycarpa show poor;Cinnamomum camphora,Robinia pseudoacacia,show relatively poor;Ligustrum lucidum,Sapium sebiferum,Platanus acerifolia get medium;Paulownia tomentosa,Acer buergerianum,Sophora japonica become strong.These species such as Camptotheca acuminate,Acer buergerianum,Platanus acerifolia with DBH 21~40cm are week in wind resistance,while those with the other DBH are strong.The branches of most damaged trees and the trunks of Paulownia tomentosa,Bischofia polycarpa,Metasequoia glyptostroboides have poor ability in wind resistance.Therefore,how garden trees can resist attacks by disastrous weather to function more efficiently has become an urgent problem.