Eight kinds of common green plants in Lin'an City,including broad-leaved trees and bamboo,were selected to measure the dust retention capacity raining after 5,10,15 d in autumn through a combination of natural observation and laboratory test,and the influence of dust on the change of plant net photosynthetic rate and stomatal conductance were also studied to compare the resistances against dust pollution of different types of plants.The results showed that the selected plants had a certain dust-retention capacities and the rank of dust detention capacties was Magnolia grandiflora L.＞ Schima superba Gardn.et Champ.＞ Phyllostachys edulis (Carr.)H.deLeh.＞ Phyllostachys violascens (Carr.) A.Rivet C.Riv.＞ Cinnamomum camphora (L.) Presl ＞ Viburnum odoratissimum Ker-Gawl.＞ Castanopsis sclerophylla (Lindl.) Schott.＞ Koelreuteria bipinnata Franch.var.integrifolia (Merr.) T.Chen in the same environment.In the process of dust retention,net photosynthetic rate and stomatal conductance loss of V.odoratissimum and Phyllostachys edulis were relative smaller which indicated they have stronger resistance to the dust pollution while Cinnamomum camphora and Phyllostachys violascens loss rate were relative larger suggestting the anti-dust pollution capacity was weak.The paper conclude that choosing greening tree seeds should not only considerr leaf dust retention ability,but also the tree performance to dust retention so that to comprehensively select and evaluate the green plants.
国家科技期刊平台
NSTL
维普
万方数据
