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对库布齐沙地柠条根际、非根际土壤微生物生物量碳、氮分布状况及其与土壤因子的关系进行了研究。结果表明:柠条土壤生物量碳、氮含量的分布趋势均为根际土壤>非根际土壤>流沙,且以表层(0-10cm)最高,随土层加深,呈下降趋势;柠条土壤中微生物量碳、氮对土壤有机质、全氮的贡献率分别为1.55%-4.73%,5.61%-13.39%,微生物量碳氮比为3.10-7.22;微生物量碳氮间呈显著正相关,土壤全氮、有机质含量与土壤微生物生物量碳、氮相关性最大。
The distribution of soil microbial biomass carbon and nitrogen in rhizosphere and non-rhizosphere soil of Kathtsi Sandy Land and its relationship with soil factors were studied. The results showed that the distribution trend of soil carbon and nitrogen in C. korshinskii was rhizosphere soil> non-rhizosphere soil> quicksand, and the surface layer (0-10cm) The contribution rates of soil microbial biomass carbon and nitrogen to soil organic matter and total nitrogen were 1.55% -4.73%, 5.61% -13.39% and microbial biomass C: N 3.10-7.22 respectively. There was a significant positive correlation between soil microbial biomass carbon and nitrogen, Total nitrogen and organic matter had the highest correlation with soil microbial biomass carbon and nitrogen.