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对杂木林及一代、二代、三代杉木人工林土壤颗粒、土壤团聚体组成以及土壤孔隙状况的比较分析,结果表明:杂木林受人为干扰少,土壤结构性能最好;一代杉木林取代杂木林炼山时,土壤结构性能出现一定程度的退化,属于较好类型;在一代杉木林基础上再度进行干扰,土壤结构退化较为严重;三代林由于林下植被大量生长,对林地土壤结构恢复有利,但二代和三代杉木林土壤结构性能均较差,属同一类型.
The results showed that the mixed forest was less disturbed by human and the soil structure was the best. The generation of Chinese fir plantation instead of the mixed plantation In the process of refining the mountain, the soil structure performance degenerated to a certain extent, which belongs to the better type. Once again, the disturbance of soil structure was serious on the basis of the generation of Chinese fir plantation. Because of the large amount of understory vegetation, However, the second and third generation Chinese fir forest soil properties are poor, belong to the same type.