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比较了兴安落叶松天然林和两种不同干扰类型兴安落叶松林(一次干扰林、二次干扰林)土壤pH值、土壤C和其它营养成分之间的差异。结果表明:兴安落叶松天然林土壤pH值高于其它两种类型森林土壤;C、N、P、K的含量均是干扰林低于天然林,且土壤0～10cm层高于土壤10～20cm层;土壤表层C:N、C:P的比值均是天然林低于干扰林,但C:K则相反。采伐干扰改变了大兴安岭北坡兴安落叶松林土壤pH值、C含量和其它养分含量。
The differences of soil pH, soil C and other nutrient components between natural forests of Larix gmelinii and two different disturbed types of Larix gmelinii forest (primary disturbance forest and secondary disturbance forest) were compared. The results showed that the soil pH value of Larix gmelinii natural forest was higher than that of the other two types of forest soil. The contents of C, N, P and K were all lower than the natural forest, and the 0-10 cm soil layer was 10-20 cm higher than the soil The ratios of C: N and C: P in the soil surface were lower in natural forests than in disturbed forests, but C: K was the opposite. Harvesting disturbance changed the soil pH value, C content and other nutrient contents of Larix gmelinii forest on the northern slope of Daxinganling.