不同种植年限苜蓿地土壤微生物量碳、氮存在差异。
There were obvious difference on soil microorganism carbon and nitrogen among different alfalfa grounds.
土壤微生物量碳、氮、磷与植被类型和植被恢复年限关系密切。
Soil Cmic, Nmic and Pmic are significantly related with vegetation type and rehabilitation age.
方差分析表明，各处理土壤微生物量碳含量之间差异达显著水平。
The ANOVA results indicate that the soil microbial biomass carbon concentration among treatments differs significantly.
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