中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Leaf photosynthesis of Betula albosinensis seedlings as affected by elevated CO2 and planting density

文献类型:期刊论文

作者Zhang, YB ; Duan, BL ; Qiao, YZ ; Wang, KY ; Korpelainen, H ; Li, CY
刊名FOREST ECOLOGY AND MANAGEMENT
出版日期2008
卷号255期号:5_6页码:1937_1944
关键词Betula albosinensis CO2 enrichment nonstructural carbohydrates photosynthesis Rubisco activity
ISSN号0378-1127
通讯作者Li, CY, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.
中文摘要Birch (Betula albosinensis Burk.) seedlings were grown under two CO, concentrations, 350 mu mol mol(-1) (ambient COD and 700 mu mol mol(-1) (elevated CO,), and in two planting densities, 32 plants/m(2) (low density, LD) and 72 plants/m(2) (high density, HD). The objectives were to characterize the responses of leaf photosynthesis to long-term elevated CO, in birch seedlings in different planting densities, and to assess whether elevated CO, regulates the photosynthetic capacity of leaves, in terms of nitrogen concentration (N), the activity of ribulose bisphosphate carboxygenase (Rubisco), the photosynthetic efficiency of Rubisco and the concentration of nonstructural carbohydrates (TNC). In both planting densities, the leaves of birch seedlings grown under elevated CO2 but measured at 350 mu mol mol(-1) CO2 had a lower leaf N concentration, net CO2 assimilation rate (A), transpiration (E) and stomatal conductance (g(s)), and a higher water use efficiency (WUE) than those of birch seedlings both grown and measured under ambient CO2 concentration. On the other hand, the values of A, E, g, and WUE were significantly affected by planting density under ambient CO2, whereas these parameters were not affected by planting density under elevated CO2. In contrast, the levels of sucrose, soluble sugars, starch and TNC in the leaves were not significantly affected by planting density under ambient CO2 whereas these parameters were significantly affected by planting density under elevated CO2. Our results demonstrated that there are different acclimations of leaf photosynthesis in birch seedlings, as affected by elevated CO2 and planting density, and they highlighted the importance of the CO, level and planting density for the physiological ecology of woody plants. (c) 2007 Elsevier B.V. All rights reserved.
学科主题Forestry
收录类别SCI
语种英语
公开日期2011-07-08
源URL[http://210.75.237.14/handle/351003/22174]  
专题成都生物研究所_生态研究
推荐引用方式
GB/T 7714
Zhang, YB,Duan, BL,Qiao, YZ,et al. Leaf photosynthesis of Betula albosinensis seedlings as affected by elevated CO2 and planting density[J]. FOREST ECOLOGY AND MANAGEMENT,2008,255(5_6):1937_1944.
APA Zhang, YB,Duan, BL,Qiao, YZ,Wang, KY,Korpelainen, H,&Li, CY.(2008).Leaf photosynthesis of Betula albosinensis seedlings as affected by elevated CO2 and planting density.FOREST ECOLOGY AND MANAGEMENT,255(5_6),1937_1944.
MLA Zhang, YB,et al."Leaf photosynthesis of Betula albosinensis seedlings as affected by elevated CO2 and planting density".FOREST ECOLOGY AND MANAGEMENT 255.5_6(2008):1937_1944.

入库方式: OAI收割

来源:成都生物研究所

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