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对樟树黄化现象进行调查研究表明,成土母质(土壤)的pH值与其密切相关,黄化严重度随pH的升高而增大,黄化速度随pH值的升高而加快。而在酸性土壤上栽樟不发生黄化现象,提出选择适宜的栽植点(或造林地)是根治樟树黄化的主要途径。
The investigation on the phenomenon of camphor tree yellowing showed that the pH value of soil parent material (soil) was closely related to it. The severity of yellowing increased with the increase of pH. The yellowing rate accelerated with the increase of pH value. However, the phenomenon of yellowing of camphor in acid soils did not occur. It is suggested that the suitable planting sites (or afforestation sites) are the main ways to cure camphor yellowing.