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调查江西省油茶主产区近年新造林地与自然林分的土壤理化状况,结果表明:油茶林地地貌类型分布主要集中在中丘、高丘和山地;油茶林地土壤类型主要是红壤,土层较厚,层次不清、腐殖质少、块状结构、质地较粘;山地养分一般高于丘陵,丘陵高于岗地,平原人为耕作影响养分含量较高。N、K、pH值和代换性盐基随海拔增高呈升高趋势,P变化不明显;土壤养分差异比较大,大部分养分指标最大值与最小值相差约10倍。油茶林地土壤养分含量均比较低,尤其是P,其次是N、K,盐基代换量也比较低,林地的保水保肥能力差。
The results showed that the distribution of the topography of Camellia oleifera forest mainly concentrated in the mid-mound, the high hill and the mountainous area. The main types of soil were the red soil in Camellia oleifera forest with thick soil layer , The level is unclear, less humus, block structure, texture sticky; mountain nutrients are generally higher than the hills, hills higher than the post, the plains tillage farming higher nutrient content. The values of N, K, pH and substitutional basalts increased with altitude, while P did not change obviously. The differences of soil nutrients were relatively large, and the difference between maximum and minimum values of most nutrient indices was about 10 times. The content of soil nutrient in Camellia oleifera forest was relatively low, especially P, followed by N and K, and the amount of base substitution was relatively low.