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主要研究了鼎湖山自然保护区内３种主要林型（季风常绿阔叶林、马尾松针阔叶混交林、马尾松林）下０～６０ｃｍ土层的酸度，有机质，水解氮，速效磷、钾，交换性钙、镁等几种营养元素的含量状态以及它们的季节动态变化。结果表明，土壤ｐＨ值都随着季节变化而逐渐升高，不同林型间的差异是松林＞混交林＞阔叶林，而且它们都是表层低于中下层。产生上述现象的原因可能是由于植被类型不同导致土壤微生物数量不同的结果。土壤养分含量明显地表现为阔叶林和混交林大于松林，这表明阔叶林和混交林在改良土壤养分方面所具有的优势。在同一剖面内，表层养分的含量明显高于中下层，而中下层之间相差不大。季节变化对速效磷影响最大，对有机质影响最小。养分含量大多在冬季较高。
Mainly studied the acidity, organic matter, hydrolyzed nitrogen, available phosphorus, potassium in 0 ~ 60cm soil layer under three main forest types (monsoon evergreen broad-leaved forest, masson pine coniferous and broadleaf mixed forest, Masson pine forest) in Dinghushan Nature Reserve , Exchangeable calcium, magnesium and other nutrients content of the state and their seasonal changes. The results showed that the soil pH values increased with the seasons. The differences among different forest types were that of pine forest> mixed forest> broadleaf forest, and all of them were lower than the middle and lower surface layer. The reason for this phenomenon may be the result of different quantity of soil microorganisms due to different types of vegetation. The soil nutrient content clearly shows that the broadleaved and mixed forests are larger than the pine forests, which shows the advantages of broadleaved and mixed forests in improving soil nutrients. In the same profile, the content of nutrients in the surface layer was significantly higher than in the middle and lower layers, while the difference between the middle and lower layers was not large. Seasonal changes have the greatest impact on available phosphorus, the smallest impact on organic matter. Most nutrient content is higher in winter.