The soil C:N is between 7 and 25, which is lower relative to the appropriate C:N of 25-30. The soil C:N increased with the increase of the elevation, but its vertical distribution in the soil profile varied with different vegetation types.

• 土壤碳氮比介于7~25之间,相对较低,利于土壤腐殖质化和有机氮矿化。 碳氮比随海拔升高而升高,在土壤剖面中的分布随植被类型不同而有所差异。