引种尾叶桉后前3年土壤变化研究

A Study on Soil Changes of the First Three Years after Introducing Eucalyptus calophyllaLin Dexi

应用土壤的化学诊断分析闽南丘陵山地引种尾叶桉后幼林期前３年土壤化学性质的变化情况，结果表明：２０多年生杉木砍伐后种植尾叶桉纯林，土壤化学性质普遍变差，只有通过施肥才能维持土壤养分水平．

Though the chemical diagnosis of soil, the first three years soil changes of the young Eucalyptus calophylla forest after introducing in southern Fujian hills have been determined.The results showed that most of the soil chemical characteristics decreased after planting Eucalyptus Calophylla pure forest in the Slashing site of Chinese fir. Fertilizing is a better way for sustaining soil nutrient.