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通过对江西省主要林区大量剖面取样与测定后发现，江西省森林土壤中有机质、胡敏酸、富里酸、全Ｎ量、碱解Ｎ、有机质Ｃ／Ｎ比的剖面分布表现出明显的规律性，即不同森林类型的土壤剖面中，除有机质Ｃ／Ｎ比表现出相反的趋势外，其它性状均表现出阔叶林＞混交林＞杉木林；在同一土壤剖面中，从表土至底土层所有上述性状都表现出明显的下降趋势，这种剖面分布状况随剖面深度的增加，按对数方程，剩幂方程和指数方程衰减。讨论了产生上述结果的原因，提出了相应的对策。
Through sampling and determination of a large number of profiles of major forest areas in Jiangxi Province, it was found that the profiles of organic matter, humic acid, fulvic acid, total N content, alkaline hydrolysis N and organic matter C / N ratio in forest soils in Jiangxi Province showed obvious regularity In other words, in the soil profiles of different forest types, except for the C / N ratio of organic matter showing the opposite trend, the other traits showed broadleaf forest> mixed forest> Chinese fir forest. In the same soil profile, from topsoil to bottom soil All of the above traits showed a clear downward trend. The distribution of such profiles decreased with logarithmic equation, exponential equation and exponential equation as the profile depth increased. The reasons for the above results are discussed, and the corresponding countermeasures are put forward.