Analysis on number of microbes and enzymes activities of soil from Cycad plantation in Panzhihua

Taking the soil from Cycad plantation and Panzhihua park as study objects，this paper analyzed the physical and chemical properties，number of microbes，enzymes activities and their correlation. The results showed that pH value and water content of the soil from Cycad plantation were 6.52 and 14.28%，the number of microbes distributed in soil was followed as bacteria > actinomycetes > fungi. The soil enzymes activities were followed as invertase > phosphatase >catalase > urease，with 23.131 mg / g·24h，1.325 mg / 100g·2h，0.57 mL / g·20min， 0.025 mg / g·24h，respectively. Correlation existed among microbial quantity，soil enzymes activities，soil physical and chemical properties. And the number of bacteria，fungi and actinomycetes increased with the increase of soil water content，urease and phosphatase activity，and decreased with the increase of invertase and catalase activity.