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研究了青藏高原的草毡寒冻雏形土的有机质组成特征。该类土壤的一个重要特征是具有特殊的有机质表层——草毡表层,同时草毡表层的有机质中未分解的死根和半分解有机质含量很高;草毡寒冻雏形土的HA/FA比值常较其他山地土壤宽。
The characteristics of organic matter composition of the felted frozen soil in the Qinghai-Tibet Plateau were studied. An important feature of this type of soil is that it has a special surface layer of organic matter - felts, and the content of undegraded dead roots and semi-decomposed organic matter in the organic matter of the felts is very high. The HA / FA ratio of felted frozen soil Often wider than other mountainous soils.