毛白杨叶片营养元素含量季节变化及年变化研究  

Seasonal and Annual Variation of Mineral Elements Concentration in Leaves of Populous tomentosa

作　　者：陈甜[1] 孙向阳[1] 刘克林[1] 田赟[1] 康向阳[2] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]北京林业大学生物科学与技术学院,北京100083

出　　处：《西北林学院学报》2009年第2期42-45,共4页Journal of Northwest Forestry University

基　　金：国家林业局专项课题(2002-66);国家"十一五"科技支撑项目(2006BAD32B01);北京林业大学研究生基金项目

摘　　要：研究了三倍体毛白杨[(Populus alba×P.glandlosa)×P.tomentosa]和二倍体毛白杨[P.tomentosa]叶片营养元素含量季节性变化及年度变化规律。结果表明,叶片中的营养元素N、P、K、Ca、Mg、Fe、Mn、Cu、Zn含量随季节的变化发生显著变化;N、P、K、Ca、Mg含量随年份的变化发生显著变化;2个无性系季节变化及年变化规律具有一致性。Seasonal and annual variations of mineral elements in the leaves of triploid Populous tomentosa and diploid P. tomentosa were investigated. The results indicated that concents of N, P, K, Ca, Mg, Fe, Mn, Cu and Zn varied significantly along with the seasonal change. The contents of N, P, K, Ca and Mg also changed significantly along with the year change. The seasonal and annual variation of mineral elements in leaves of two clones changed similarly.

关 键 词：毛白杨 营养元素 季节变化 年变化 

分 类 号：S712.117[农业科学—林学]