Acute responses of some plants upon combined pollution of sulfur dioxide and lead

Air pollution is one of environmental crisis that human being faces. To select urban planting tree species according to reaction mode of plant upon air pollution is a very important approach and means to reduce air pollutants. By means of observing the damage symptom of leaves of planting trees in pollution area, resistant degree of plant upon combined pollution of sulfur dioxide and lead were estimate. Resistant grade of plant upon air pollutants according to plant reaction characteristic and screen out resistant plant species and sensitive monitoring plant species were also determined. The results show that resistant plants include Fraxinus rhynchophylla, Morus alba, Gleditsia japonica, Prunus davidiana, Phellodendron amurense, Ailanthus altissima,Syringa meyeri, Lonicera japonica, Tamarix chinensis, Sabina chinensis, Lycium chinense, Ligustrum obtusifolium, Robinia pseudoacacia, Alnus tinctoria, Populus ×canadensis, Rosa xantina, Rosa rugosa, Ulmus pumila, Acer ginnala and sensitive monitoring plants include Forsythia suspense, Prunus triloba, Weigela florida,Physocarpus amurensis,Picea koraiensis, Pinus tabulaeformis, Pinus sylvestris, Maackia amurensis. The results can offer a proof to select planting tree reasonably.