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| Analysis on number of microbes and enzymes activitiesof soil from Cycad plantation in Panzhihua |
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| Abstract: |
| 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. |
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