人工林生产力年龄效应及衰退机理研究进展
Alternative TitleAdvances inresearch on the mechanisms of age-related productivity decline of planted forests
毛培利 ; 曹帮华 ; 田文侠 ; 孟凤芝  
Source Publication生态学报  
ISSN1000-0933  
2010-12-31
Volume31Issue:11  Pages:3208-3214
Keyword生长过程 林龄 地上部净初级生产量  
Contribution Rank中国科学院烟台海岸带研究所滨海湿地生态实验室中国科学院山东省海岸带环境过程重点实验室;山东农业大学农业生态与环境重点实验室;山东省林业监测规划院;  
Department滨海湿地实验室
Abstract同龄林林分郁闭后,地上部净初级生产量随着林龄增加而降低的现象近几十年引起了林业工作者的兴趣和注意并成为研究热点。多数研究试图通过光合生理、林分营养、生物量分配和林分结构等随林龄的变化规律来解释林分生产力衰退机理。研究认为,林分郁闭后水分传输阻力的增加减少了树木的光合能力;林地养分的减少使得根系生物量分配增加,导致林分叶面积减少,树木光合能力下降;对资源的竞争使得树木优势度发生变化,资源利用率降低。光合能力、林分叶面积和资源利用率的降低以及根系生物量分配的增加是林分生产力衰退的关键,而林分呼吸和林木衰老的作用不大。今后深入研究树体水分运输及其补偿机制、逆境下根系的生长过程及适应机制,并跟踪研究林分生长规律,更有助于揭示人工林生产力衰退的实质。  
Other Abstractn forestry,it is of both economic and ecological significance to study the growth dynamics of plantations.In an even-aged plantation,the above-ground net primary productivity usually decreases with age following the canopy closure.The mechanisms and potential causes conducive to the decline in above-ground net primary productivity have attracted considerable attentions from forest ecologists and resource managers during the recent decades,and has become a hot topic of research in recent years.A number of h...
Indexed ByCSCD
Language英语
CSCD IDCSCD:4219147
Funding Organization国家自然基金项目(30950016);; 山东省“十一五”重点科技攻关项目(2006GG2206001);; 山东农业大学博士基金项目资助  
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/4319
Collection中科院海岸带环境过程与生态修复重点实验室_滨海湿地实验室
Recommended Citation
GB/T 7714
毛培利,曹帮华,田文侠,等. 人工林生产力年龄效应及衰退机理研究进展[J]. 生态学报  ,2010,31(11  ):3208-3214.
APA 毛培利,曹帮华,田文侠,&孟凤芝  .(2010).人工林生产力年龄效应及衰退机理研究进展.生态学报  ,31(11  ),3208-3214.
MLA 毛培利,et al."人工林生产力年龄效应及衰退机理研究进展".生态学报   31.11  (2010):3208-3214.
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