尿素和茶树落叶对土壤的酸化作用  

Acidification of Soil by Urea and Fallen Tea Leaves

作　　者：石锦芹 丁瑞兴[1] 刘友兆[1] 孙玉华[1] 

机构地区：[1]南京农业大学资源与环境学院

出　　处：《茶叶科学》1999年第1期7-12,共6页Journal of Tea Science

基　　金：国家自然科学基金

摘　　要：用亚热带茶区的４种未垦荒地土壤作土柱模拟，研究了重施尿素和表覆茶树落叶对土壤酸化的影响。结果表明，尿素和茶树落叶处理都能酸化土壤，尤以０～２０ｃｍ的表层最为明显，其中又以赤红壤和黄壤的酸化比红壤和黄棕壤明显。文中还对尿素和茶树落叶对茶园土壤的酸化作用、酸化过程和不同土类的酸化差异进行了讨论。Four uncropped soils in subtropical tea producing area were applied in soil column experiments to study the infuence of urea and fallen tea leaves on soil acidification.Both urea and fallen tea leaves acidified the soils.Soil acidification most seriously occurred in topsoil.Lateritic red soil and yellow soil were more evidently acidified than red soil and yellow brown soil.The article also deals with the difference in acidification between different soil great groups.

关 键 词：茶园土壤 酸化 尿素 茶树落叶 

分 类 号：S571.1[农业科学—茶叶生产加工] S153.4[农业科学—作物学]