兴安落叶松原始林区降水输入养分特征分析  

CHARACTER ANALYSIS OF IMPORT NUTRIENT IMPORTED FROM RAINFALL IN VIRGIN FOREST OF Larix gmelini

作　　者：周梅[1] 王庆海 刘春革 冯林[1] 

机构地区：[1]内蒙古农业大学林学院,呼和浩特010019 [2]内蒙古大兴安岭林管局根河林业局,根河022350 [3]内蒙古大兴安岭大杨树林业局

出　　处：《内蒙古农业大学学报（自然科学版）》2000年第1期48-51,共4页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：林业部九.五重点课题 !(96- 2 7);内蒙古自然科学基金!(990 30 3- 4 )

摘　　要：本文就寒温带大兴安岭林区兴安落叶松原始林生态系统降水输入总养分含量、大量元素和微量元素的养分含量占总养分含量的比值、降水输入养分含量月际变化和年内分配等进行了分析。结果表明 :兴安落叶松原始林区降水输入的大量元素低于其它几个研究地区。微量元素含量趋平均水平。降水输入养分月际变化最大者是 Ca元素。全年降水输入养分集中在生长季。The nutrints imported from rainfall,and ratio between nutrient content and total nutrient content in macroelement and microelement,and changes in month and year were analyzed.The nutrient content of macroelement imported from rainfall was less than the other researched area in China.Microelement was the average.Of all the elements Ca was most mutative in monthly nutrient content.Nutrients imported from rainfall was centralized in growing period.

关 键 词：养分 降水 兴安落叶松原始林区 森林生态系统 

分 类 号：S791.222[农业科学—林木遗传育种] S718.512.3[农业科学—林学]