2006•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access
Characteristics of Plant Communities and Soil Properties of Road Green Belts
Haifeng Zheng
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Abstract
Serious destruction of vegetation and heavy disturbance of soil were brought about by roads construction.The structure,species diversity,soil properties of forest in new road green belt(1 year),old road green belt(15 years),Pinus massoniana forest and evergreen broad-leaved forest are compared in this study.The results show that the approximate order of the cover degree of forest is 40 years old evergreen broad-leaved forest 20 years old evergreen broad-leaved forest Pinus massoniana forest forest in old road green belt forest in new road green belt.Compared with evergreen broad-leaved forests,species diversity of forest in road green belts is low.This is especially true for woody plants.The soil of new and old road green belts is seriously disturbed.Their soil bulk densities and coarse sand content are high;soil clay content,organic matter,available N,P and K are low compared with the other three forest communities.The differences are especially obvious in soil between new road green belt and evergreen broad-leaved forest.