29种固氮树种生长量与固氮效率相关性研究  

Analysis of Correlation between Growth Quantity and N-Fixation Efficiency of 29 N-fixing Trees

作　　者：有祥亮 张京伟[1,2] 张德顺[3] 郗金标[4] 

机构地区：[1]上海市园林科学研究所,上海200232 [2]青岛农业大学园林园艺学院,山东青岛266109 [3]同济大学建筑与城规学院,上海200092 [4]上海建桥学院,上海201319

出　　处：《江西农业学报》2009年第11期33-35,39,共4页Acta Agriculturae Jiangxi

基　　金：上海市科技兴农重点攻关项目(沪农攻科字2007第10-1号)

摘　　要：在对上海市固氮植物资源调查的基础上,选定29种有一定固氮能力的树种。以海滨木槿为对照,测定其年相对高生长量、年相对径生长量、固氮效率,并对生长量与固氮效率的相关性进行分析。分析结果表明:树种间测量指标差异显著;固氮效率与植物生长存在较强正相关性(相关系数0.839**、0.707**),固氮效率越高的植物,其相对高、径生长量越大。Based on the survey of N - fixing trees in Shanghai, 29 kinds of trees with certain N - fixation capacity were chosen to conduct this experiment, Hibiscus hamabo was taken as the control tree, and their relative stem height, diameter growth and nitrogen - fixation efficiency were determined. Then, correlation analysis was carried out between growth quantity and N - fixation efficiency. The results showed that there were significant differences in tested parameters among different kinds of trees ; but growth quantity was highly positively correlated with N - fixation efficiency （correlative coefficients were 0. 839 ＊ ＊ and 0. 707 ＊ ＊ respectively）, the growth quantity of tree who had higher N - fixation efficiency was also higher than that of other trees.

关 键 词：固氮树种 生长量 15N自然丰度法 固氮效率 相关性 

分 类 号：S718.45[农业科学—林学]