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东北东部山地系我国主要林业基地之一,有丰富的原始森林资源,山区的边缘有大面积的天然次生林。对林下土壤的认识和分类命名存在着一些分歧意见,如梭颇、(1936)马溶之(1958)等人将山区中腹的原始红松林下的土壤命名
The eastern part of Northeast China is one of the major forestry bases in our country. It is rich in primary forest resources and has a large area of natural secondary forest on the edge of mountainous areas. There are some disagreements on the understanding and classification of forest soils, such as Soochow, (1936) Ma Rongzhi (1958) et al. Named the soil under the native Korean pine forest in the middle of the mountain