Quantity of soil microbe and affecting factors of Xiaopohu Wetlands in Qinghai Lake Basin
In order to investigate the quantity and distribution of major microbial groups of xiaopohu wetlands in qinghai lake basin,quantity of bacteria,fungi and actinomycetes were studied at five kinds of habitats by the way of pour plate method.The results indicated that the quantity of soil microorganism within 0-30 cm soil layer was most in Kobresia Meadow and least in sandland.Bacterium was the majority of the total soil microbe in different soil habitats and layers,followed by actinomycetes and fungi.The quantity of soil microbe was jointly affected by vegetation, soil physicochemical properties, water content and, etc.Principal component analysis indicated that among soil physicochemical properties, the order of direct influence on the total quantity of soil microorganism were as follows: total carbon > moisture > total normalization > Conductivity > pH value, and total carbon, water content and total nitrogen in soil were three main factors determining the quantity of soil microbe.Correlation analysis indicated that soil microbe was significantly correlated to physicochemical properties but not linearly related.Satisfy curvilinear relationship Y=A1X1p+ A2X2q + A3X3t +…+ B.
Qinghai Lake Basins soil microbes quantitycombined effected