99种栲属类常绿阔叶树种叶片功能性状研究  

Studies on leaf functional traits of ninety-nine Castanopsisoid species

作　　者：董莉莉[1] 

机构地区：[1]辽宁省林业科学研究院,辽宁沈阳110032

出　　处：《辽宁林业科技》2015年第4期1-4,19,22,共6页Liaoning Forestry Science and Technology

摘　　要：以南北样带栲属树种和常绿阔叶树种(包括栲属)为试验材料,测定了栲属树种的净光合速率、叶氮和磷含量、叶厚度、比叶重和常绿阔叶树种的比叶重、叶厚度、干物质含量。通过检验叶片功能性状指标之间相关关系得到,栲属植物的单位面积最大净光合速率与单位面积叶氮含量、比叶重彼此呈正相关,单位质量最大净光合速率与比叶重、叶厚度呈负相关,同时,无论是基于面积还是基于质量叶氮和磷含量都呈正相关关系。99种常绿阔叶树种的比叶重、叶厚度、干物质含量彼此呈正相关。In this study,Castanopsis spp. and other evergreen broad-leaved tree species in North-South Transect of Eastern China（NSTEC）were studied.The photosynthetic rate,nitrogen and phosphorus contents in leaf,leaf thickness and leaf mass per unit area（LMA）of Castanopsis species and LMA,leaf thickness and dry matter content of evergreen broad-leaved tree species.The correlations between leaf functional traits were tested,and results indicated that the maxim net photosynthetic rate per unit area were positively related with leaf nitrogen content per unit area and leaf mass per unit area,but the maxim net photosynthetic rate per unit weight were negative correlated with LMA and leaf thickness. Meanwhile,no matter based on unit area or unit weight,nitrogen contents in leaf were positive correlated with phosphorus content in leaf.Of Ninety-nine evergreen broad-leaved tree species,LMA,leaf thickness and dry matter content was positive correlated with each other.

关 键 词：叶功能性状 栲属 常绿阔叶树种 

分 类 号：S718.5[农业科学—林学]