A study on quantity and diversity of soil microorganisms in Gaoligong Mountains
高黎贡山土壤微生物的数量和多样性

The quantity and diversity of soil microbe were studied in different vegetation types in GaoligongMountain,Yunnan.The quantities of microbes,diversity of fungi, and the amount of nutritions were examined in 12 soil samples, which were collected from different habitats with the elevation ranging from 1000 to3000 meters, The result showed that the quantities of bacteria, fungi, actinomyces, and diversity of fungivaried with elevation.The highest values occurred at the elevation of about 2000 meters, and they decreasedas the elevation increased or decreased.The lowest values appeared at bottom of the Mountains. The correlations between soil microbes and the ecological factors varied.The quantities and diversity of soil microbes weresignificantly correlated with temperature and organic matter except that there were no significant correlationsbetween the quantity of bacteria and temperature,as well as between quantity of fungi and organic mater. Incontrast, they correlated less with effective nitrogen and soil moisture conten, much less with quick actingphosphorus and quick acting potassium.The results indicate that the main ecological factors influencing thequantity and diversity of soil microbes were temperature,organic matter, effective nitrogen,and soil moisturecontent.