摘 要(英文)：Soil acidity and contents of several nutrients, Hydrolysable N, available P, K, exchangeable Ca, Mg, and their seasonal
dynamic changes in the Coniferous and broad-leaved mixed forest of Dinghushan were investigated. We found that the pH values of
all soil layers in the Coniferous and broad-leaved mixed forest at Dinghushan were below 4.5, and increased with soil depth. Soil
acidity in the 0~40 cm layer had an obvious seasonal fluctuated. The reason for these phenomena was probably the co-operation of
the precipitation, temperature, litter fall and soil microbes. Soil nutrients were the highest in the surface horizon, and decreased with
depth except exchangeable Ca. In January and April, contents of the most soil nutrients were higher than in July and October.
鼎湖山针阔叶混交林土壤酸度与土壤养分的季节动态