【摘要】 评估常见绿化树种的滞尘能力,为城市绿化树种选择提供参考。通过文献研究,选取11种常见绿化树种在中国大陆不同城市的滞尘数据,分析滞尘能力。研究显示:1)银杏(Ginkgo biloba)、垂柳(Salix babylonica)、栾树(Koelreuteria paniculate)、国槐(Sophora japonica)、毛白杨(Populus tomentosa)和香樟(Cinnamomum camphora) 6种乔木树种中,国槐的平均滞尘量为5. 27 g/m2,银杏、毛白杨和香樟的平均滞尘量在2. 38～4. 47 g/m2之间,垂柳和栾树的平均滞尘量分别为1. 36 g/m2、1. 59 g/m2,毛白杨的最大滞尘量为60. 4 g/m2,滞尘潜能略高于银杏、垂柳、栾树、国槐和香樟; 2)紫叶李(Prunus cerasifera)、大叶黄杨(Buxus megistophylla)、桂花(Osmanthus fragrans)、榆叶梅(Prunus triloba)和珊瑚树(Viburnum awabuki) 5种灌木树种中,大叶黄杨的平均滞尘量为5. 15 g/m2,紫叶李、桂花和珊瑚树的平均滞尘量在3. 31～3. 53 g/m2之间,榆叶梅的平均滞尘量为2. 23 g/m2,且大叶黄杨的最大滞尘量为31 g/m2,滞尘潜能高于紫叶李、桂花、榆叶梅和珊瑚树; 3)灌木树种叶片滞尘量大于乔木树种叶片滞尘量,且平均单位叶面积滞尘量为乔木的1. 27倍。研究认为在灰尘浓度较高的城市可增加对国槐、毛白杨和大叶黄杨的种植。更多还原

【Abstract】 The dust-detaining ability of common greening tree species was evaluated to provide reference for the selection of urban greening tree species. Through literature research,this study select dust-retaining data of 11 common greening tree species in different cities in mainland China,and analyze the dust-retention ability. Research shows: 1) Among the six arbor species,such as Ginkgo biloba,Salix babylonica,Koelreuteria paniculate,Sophora japonica,Populus tomentosa and Cinnamomum camphora,the average dust retention of Sophora japonica is 5. 27 g/m2,the average dust retention of Ginkgo biloba,Populus tomentosa and Cinnamomum camphora is between 2. 38 and 4. 47 g/m2,and the average dust retention of Salix babylonica and Koelreuteria paniculata is 1. 36 g/m2,1. 59 g/m2,respectively,the maximum dust retention of Populus tomentosa is 60. 4 g/m2,and the dust retention potential is slightly higher than that of Ginkgo biloba,Salix babylonica,Koelreuteria paniculate,Sophora japonica and Cinnamomum camphora; 2) Among the five shrub species,such as Prunus cerasifera,Buxus megistophylla,Osmanthus fragrans,Prunus triloba and Viburnum awabuki,the average dust retention of Buxus megistophylla is 5. 15 g/m2,the average dust retention of Prunus cerasifera,Osmanthus fragrans and Viburnum awabuki is between 3. 31 and 3. 53 g/m2,the average dust retention of Prunus triloba is 2. 23 g/m2,and the maximum dust retention of Buxus megistophylla is 31 g/m2,the dust retention potential is higher than Prunus cerasifera,Osmanthus fragrans,Prunus triloba and Viburnum awabuki; 3) The leaf dust retention of shrub species is greater than that of arbor species,and the average unit leaf area dust retention is 1. 27 times that of the arbor species. Studies have shown that in cities with high dust concentrations,the cultivation of Sophora japonica,Populus tomentosa and Buxus megistophylla can be increased.更多还原