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作 者 ：吕金枝;苗艳明;张慧芳;毕润成

期 刊 ：武汉植物学研究 2010年 28卷 4期 页码：460-465

关键词：比叶面积；单位重量叶氮含量；单位面积叶氮含量；霍山；山西；

Keywords:Specific leaf area, Mass-based leaf nitrogen concentration, Area-based leaf nitrogen content, Huoshan Mountain, Shanxi,

摘 要 ：选取山西霍山地区30种主要植物(乔木7种、灌木10种、草本植物13种),分别测定了其比叶面积(SLA),单位重量叶氮含量(N_mass)及单位面积叶氮含量(N_area),初步探讨了3种功能型植物的部分叶性特征,并进行了比较分析。结果表明:在霍山地区这个特定的环境下,草本植物的SLA最大,灌木次之,乔木最小;对于N_mass,同样是草本植物最高,灌木次之,乔木最低;而N_area乔木最高,灌木次之,草本最低,表现出在相同环境下,不同功能型植物的叶性特征的差异性。不同功能型植物的SLA与N_mass呈正相关关系,与N_area呈负相关关系,表现出在相同环境下,不同功能型植物叶性关系的相似性。

Abstract:We measured specific leaf area(SLA),and mass-based(N_mass) and area based(N_area) leaf nitrogen concentrations for 30 plant species in the Huoshan Mountain of Shanxi province.The collected data were further compared between three different plant functional types.The results showed that the order of the average SLA and average N_mass was grasses>shrubs>trees,while average N_area was trees>shrubs>grasses.This suggested that different functional plants have different traits to adapt to their environment.For species,SLA was positively correlated with N_mass but negatively correlated with N_area,which showed the similarity of their leaf traits in the environment.

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