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当前位置: 首页 > 文章 > 氮添加对华润楠苗木碳氮磷化学计量特征的影响 甘肃农业大学学报 2013,48 (5) 100-105
Position: Home > Articles > Effects of nitrogen addition on ecological stoichiometry characteristics of Machilus chinensis Journal of Gansu Agricultural University 2013,48 (5) 100-105

氮添加对华润楠苗木碳氮磷化学计量特征的影响

作  者：
常云妮;钟全林;程栋梁;徐朝斌;胡波;张治
单  位：
福建师范大学地理科学学院
关键词：
氮添加;碳氮磷;生态化学计量特征;华润楠
摘  要：
通过连续1a的N添加(0(对照)、低N、中N、高N)人工受控试验,探讨了N供给改变对华润楠苗木叶片C、N、P化学计量特征的影响.结果表明:不同程度的N添加处理后,华润楠苗木叶片C、N、P含量分别为45.200%~45.568%、1.705%~1.835%和0.072%~0.086%;茎C、N、P含量分别为44.387%~44.582%、0.943%~1.001%和0.054%~0.071%;根C、N、P含量分别为37.232%~37.634%、0.942%~0.995%和0.062%~0.083%,N添加后叶片、茎、根中C、N、P含量均显著高于对照.叶片C∶N、C∶P、N∶P的范围分别为26.870~28.465、534.528~665.874和23.750~27.145;茎C∶N、C∶P、N∶P的范围分别为48.854~50.378、674.739~946.525和15.136~25.281;根C∶N、C∶P、N∶P的范围分别为38.503~40.096,483.905~750.579和12.419~21.042,N添加后叶片、茎、根C∶N、C∶P、N∶P均显著低于对照.在N添加的1a时间里华润楠苗木养分含量随时间的变化表现出一定波动性.
译  名：
Effects of nitrogen addition on ecological stoichiometry characteristics of Machilus chinensis
作  者：
CHANG Yun-ni;ZHONG Quan-lin;CHENG Dong-liang;XU Chao-bin;HU Bo;ZHANG Zhi;College of Geographical Sciences,Fujian Normal University;State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology;
关键词：
nitrogen addition;;carbon nitrogen phosphorus;;ecological stoichiometry characteristics;;Machilus chinensis
摘  要：
A field experiment was carried out on response of Machilus chinensis to nitrogen addition and its ecological stoichiometry characteristics.The experiment with nitrogen addition at 4 levels lasted for a year.Results showed that,C,N and P contents of leaves were 45.200~45.568 %,1.705~1.835% and 0.072~0.086%,which of branches were 44.38791% ~44.582%,0.943% ~1.001% and 0.054% ~0.071%,and which of roots were 37.232%~37.634%,0.942%~0.995% and 0.062%~0.083%.The contents of C,N and P increased significantly with N addition.The C:N,C:P and N:P of leaves were26.870~28.465,534.528~665.874and 23.750~27.145,which of branches were 48.854~50.378,674.739~946.525 and 15.136~25.281,which of roots were 38.503~40.096,483.905~750.579and12.419~21.042.The values decreased significantly with N addition.

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