首页 | 官方网站   微博 | 高级检索  
     

珠江三角洲3种典型森林类型乔木叶片生态化学计量学
引用本文:吴统贵,陈步峰,肖以华,潘勇军,陈勇,萧江华.珠江三角洲3种典型森林类型乔木叶片生态化学计量学[J].植物生态学报,2010,34(1):58-63.
作者姓名:吴统贵  陈步峰  肖以华  潘勇军  陈勇  萧江华
作者单位:1中国林业科学研究院热带林业研究所, 广州 510520; 2中国林业科学研究院亚热带林业研究所, 浙江富阳 311400
基金项目:科技部科研院所社会公益研究专项基金,国家林业部"948"资助项目,国家林业局林业科技创新平台项目 
摘    要:以珠江三角洲3种典型森林类型(常绿阔叶林、针阔混交林和针叶林)为研究对象,分析了各类型优势乔木叶片C、N、P化学计量特征。结果显示,所有研究个体叶片C、N、P含量范围分别为434–537、6.8–23.0和0.56–2.10mg·g–1,C:N、C:P和N:P的分布区间分别为21.22–70.74、227.14–844.64和5.26–20.91,且N与P之间、C:N与C:P之间具有较好的协同性。3种森林类型中,针叶林乔木叶片C含量最大,加权平均值为(517.85±35.96)mg·g–1,其次是针阔混交林((509.47±19.38)mg·g–1),常绿阔叶林最小((481.59±18.35)mg·g–1);针叶林乔木叶片N含量((12.20±5.65)mg·g–1)最大,其次是常绿阔叶林((11.50±4.24)mg·g–1),针阔混交林((10.51±5.22)mg·g–1)最小;各森林类型乔木叶片P含量大小顺序与C含量完全相反,为常绿阔叶林((1.31±0.48)mg·g–1)针阔混交林((0.96±0.61)mg·g–1)针叶林((0.77±0.40)mg·g–1)。针阔混交林乔木叶片C:N(51.35±13.65)最大,针叶林(47.40±15.85)其次,常绿阔叶林(45.59±14.70)最小;各森林类型乔木叶片C:P和N:P大小顺序相同,均为针叶林(727.47±231.52、15.71±3.76)针阔混交林(553.01±152.32、10.93±1.89)常绿阔叶林(412.19±200.91、9.46±4.28)。同时根据乔木叶片N:P还发现,少数阔叶树种和常绿阔叶林生产力受到N素限制。

关 键 词:针叶林  常绿阔叶林  针阔混交林  珠江三角洲  生态化学计量学

Leaf stoichiometry of trees in three forest types in Pearl River Delta, South China
WU Tong-Gui,CHEN Bu-Feng,XIAO Yi-Hua,PAN Yong-Jun,CHEN Yong,XIAO Jiang-Hua.Leaf stoichiometry of trees in three forest types in Pearl River Delta, South China[J].Acta Phytoecologica Sinica,2010,34(1):58-63.
Authors:WU Tong-Gui  CHEN Bu-Feng  XIAO Yi-Hua  PAN Yong-Jun  CHEN Yong  XIAO Jiang-Hua
Affiliation:1Research Institute of Tropical Forest, Chinese Academy of Forestry, Guangzhou 510520, China; and 2Research Institute of Sub-tropical Forest, Chinese Academy of Forestry, Fuyang, Zhejiang 311400, China
Abstract:Aims Plant or biomass stoichiometry can be used to distinguish biological entities (genes, cells, organisms, etc.) based on element composition. Our objective was to determine the stoichiometry characteristics and examine nutrient limitation in evergreen broad-leaved forest, coniferous and broad-leaved mixed forest and coniferous forest. Methods We determined C, N, P stoichiometry of leaves of 19 dominant trees of 16 taxa in three forest types at the Pearl River Delta Forest Ecosystem Research Station, Guan...
Keywords:coniferous forest  evergreen broad-leaved forest  coniferous and broad-leaved mixed forest  Pearl River Delta  stoichiometry
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《植物生态学报》浏览原始摘要信息
点击此处可从《植物生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号