Abstract:

Street trees have a important role in city, in order to select street trees which have the strongest dust retention capacity, by surveying and experiment in the selected street trees in Hangzhou, the results showed that: the order of the dust retention capacity of selected plants in the winner was: Liquidambar formosana＞Koelreuteria integrifoliola＞Liriodendron chinense＞Cinnamomum camphora＞Sapindus mulorossi＞Platanus.acerifolia＞Elaeocarpus sylvestris＞Ginkgo biloba＞Sapium sebiferum; In the spring, that was Elaeocarpus sylvestris＞Cinnamomum camphora; In summer, that was: Cinnamomum camphora＞Elaeocarpus sylvestris＞Liquidambar formosana＞Sapindus mulorossi＞Koelreuteria integrifoliola＞Liriodendron chinense＞P.acerifolia＞Ginkgo biloba＞Sapium sebiferum; In autumn, that was: Koelreuteria integrifoliola＞Sapindus mulorossi＞Cinnamomum camphora＞Elaeocarpus sylvestris＞Liquidambar formosana＞Ginkgo biloba＞Sapium sebiferum＞Liriodendron chinense＞P.acerifolia. The order of the average dust retention capacity in the seasons was: Elaeocarpus sylvestris＞Koelreuteria integrifoliola＞Liquidambar formosana＞Sapindus mulorossi＞Cinnamomum camphora＞Liriodendron chinense＞P.acerifolia＞Ginkgo biloba＞Sapium sebiferum; The order dust retention capacity in the four seasons of Liquidambar formosana, Koelreuteria integrifoliola, Liriodendron chinense, Sapindus mulorossi, Platanus.acerifolia, and Ginkgo biloba was: spring＞autumn＞summer＞winner; that of Elaeocarpus sylvestris was: spring＞autumn＞winner＞summer; that of Cinnamomum camphora was: winner＞autumn＞summer＞spring; that of Sapium sebiferum was: autumn＞winner＞summer.