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Study on Dust-Retention Effect of the Main Greening Species in Chengyang District of Qingdao

LIU Xia,LI Hai-mei,LI Xiang,WANG Fu-bin (Qingdao Agricultural University,Shandong,Qingdao 266109,China)  
The dust-retention ability of 21 main greening species were tested in Chengyang District of Qingdao.The results showed:there were great differences on the dust-retention ability of the different tree spices,and the maximum dust-retention quantity could be more than 4 times than the minimum.The dust-retention quantity in the first week gave the greatest contribution to the total dust-retention quantity.The dust-retention ability in the different sites of the same plant was different.Therefore,choosing tree species with strong dust-retention ability and disposing plants rationally were the effective way to improve the dust-retention effect of urban road green space.
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