外源毒素对林地土壤养分的影响

摘要：

The effect of vanillin and P-hydroxybenzoic acid on Chinese fir(Cunninghamia lanceolata) woodland soil and Schima superba woodland soil was studied in pot culture experiment.The results showed that contents of nitrogen,potassium and organic matter were lower than the control and their change scope were 21.8%,2.8% and 8.2% respectively.The content of available phosphorus were higher and the change scope was 23.7%.In addition,both changes became more significant with increase of phenolic concentration.These results showed that allelochemicals released by plant may affect content of nutrition in soil,and give rise to nutrition deficiency,and then affect Chinese fir growth.

关键词：外源毒素、香草醛、对羟基苯甲酸、抑制作用、化感物质

所属期刊栏目：21

分类号：S154.2(土壤学)

资助基金：中国科学院知识创新工程项目KZCX2-406

在线出版日期：2004-01-08（万方平台首次上网日期，不代表论文的发表时间）

页数：共4页

页码：19-22