Comparison of dust retention capacities by 20 urban road afforestation trees
The dust retention capacities of 20 afforest tree species in different time and areas in Nanjing are compared.The comprehensive dust retention capacities affected by facts of blade character,micromorphology properties and the height of a leaf surface are made a analysis.The results indicated the same tree species showed different dust detaining abilities in different season,Autumn ＞ Spring ＞Summer.The difference of dust retention capacities of overwhelming majority trees are remarkable in different areas.The dust-retention ability of different tree types is in order of broad-leaved shrub＞evergreen broad-leaved arbor＞deciduous broad-leaved arbor.The afforest tree species are made to assort at the basis of comprehensive dust retention capacities,the first category includes Ligustrum quihoui,Magnolia grandi flora,Fatsia japonica,Pittosporum tobira,Buxus sinica and Broussonetia papyrifera,the amount of dust retention by those trees surpass 0.4 mg·cm-2 ; Ligustrum lucidum Ait,Platanus hispanica,Cinnamomum camphora,Prunus cerasi f era,Viburnum awabuki,Lagerstroemia indica,Buxus megistophylla and Ginkgo biloba belong to the second category and which is between 0.2～0.4 mg · cm-2; the amount of dust retention by Prunus serrulata,Pterocarya stenoptera,Populus Canadensis,Prunus persica,Robinia pseudoacacia and Acer palmatum is lesser than 0.2 mg· cm-2 and is in the third category.
国家科技期刊平台
NSTL
万方数据
维普
