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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