Research on Spatial Distribution and Characteristic Changes of Different Types of Green Soil Microbial in Xuzhou City
[Objective] Soil microorganisms were important organisms in terrestrial ecosystems,which were very sensitive to their survival of the microenvironment.It was the warning and sensitive indicator of soil ecosystem changes.[Method] There were four types of green space in Xuzhou City.The spatial distribution and characteristic changes of soil physical and chemical properties and soil microbial were analyzed.[Result] According to soil microbial quantity distribution of the different types of green space,the order was park green space > productive plantation area > residential green space > road green space.The content of soil microbial biomass (carbon and nitrogen) changes relatively largely in different types of green space.Its variation tendency performances were almost the same with variation of the organic content of soil.The orgamic content in park green space was the highest,but lowest in road green space.In Addition,soil microbial biomass carbon(C) had positive correlation with nitrogen (N) in different types of green space.[Conclusion] In order to analyze the changes of soil microbial characteristics of different kinds of green spaces,long term sampling,investigation and analysis should be conducted.And comprehensive analysis should be carried out combined historical changes with the green space.
Urban green spaceSoil microbial biomassSoil microbial activityXuzhou City