人面竹等10种观赏竹春季滞尘效应与规律

对福州市江滨西大道10种观赏竹的春季滞尘效应进行监测，从时间、高度和方向3个方面分析其单位叶面积滞尘量的变化规律。结果表明，10种观赏竹春季单位叶面积滞尘量有显著差异，其滞尘量分别为：绿槽毛竹2004g/m2、泰竹944g/m2、银丝大眼竹795g/m2、早园竹694g/m2、人面竹542g/m2、斑竹514g/m2、唐竹500g/m2、黄金间碧竹437g/m2、青丝黄竹284g/m2、鼓节竹260g/m2。绿槽毛竹、泰竹、早园竹、人面竹、斑竹、黄金间壁竹和青丝黄竹在距离地面150cm处的单位叶面积滞尘量高于200cm处，银丝大眼竹、唐竹和鼓节竹则相反，尤以银丝大眼竹2个高度差异较大。各竹种不同方向滞尘量存在差异，这与竹种栽植位置和车辆行驶方向有关。

Study on Dust Retention Capacity of Phyllostachys aurea and Other 9 Ornamental Bamboo Species

The change of dust retention capacity of the unit leaf area of 10 ornamental bamboo species grown along the West Riverside Avenue in Fuzhou City was studied from three aspects,i.e.,time,height and direction by field observation in the spring season.The results showed that there was significant difference in dust retention capacity among the different bamboo species.The dust retention quantity of the 10 species was ranked in the order as:Phyllostachys heterocycla cv.‘Viridisulcata’(20.04 g/m2)> Thyrsostachys siamensis(9.44 g/m2) > Phyllostachys propinqua(7.95 g/m2) > Phyllostachys aurea(6.94 g/m2) > Phyllostachys bambusoides f.lacrima-deae(5.42 g/m2) > Bambusa vulgaris cv.‘Vittata’(5.14 g/m2) and Bambusa eutuldoides var.viridi-vittata,(5.00 g/m2) > Bambusa tuldoides cv.‘swolleninternode’(2.60 g/m2).The dust retention quantity at the height of 150 cm of the most bamboo species or varieties was larger than that of at the height of 200 cm above the ground,but it was contrary for the species or varieties Phyllostachys propinqua,Bambusa eutuldoides var.viridi-vittata,and Bambusa tuldoides cv.‘swolleninternode’.There was prominent difference in dust retention capacity of Phyllostachys propinqua between the data measured at the height of 150 cm and that of at the height of 200 cm above the ground.There was also difference in dust retention capacity of each bamboo species or variety in different directions because of the location of the plants growing along the streets and the driving direction of the vehicles.