Effects of Drought and Warming on Biomass, Nutrient Allocation, and Oxidative Stress in Abies fabri in Eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Yang, Yan1,2 ; Wang, Genxu2; Yang, Liudong2,3; Guo, Jianying2,4
|
| 刊名 | JOURNAL OF PLANT GROWTH REGULATION
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 32期号:2页码:298-306 |
| 关键词 | Abies fabri Biomass Membrane damage Nutrient allocation Stoichiometric traits |
| ISSN号 | 0721-7595 |
| 通讯作者 | Wang, Genxu |
| 英文摘要 | Abies fabri (Mast.) Craib is an endemic and dominant species in typical subalpine dark coniferous forests distributed in the eastern Tibetan Plateau. To assess how A. fabri may respond and adapt to future climate changes, we investigated the effects of drought and warming on the growth, resource allocation in biomass, membrane stability, and oxidative stress of the seedlings over two growing seasons. Drought (11.4 % average reduction in soil moisture) was created by excluding natural precipitation with a plastic roof and warming was performed by an infrared heater above the plots. Drought increased root length, the root-to-shoot ratio, N concentration, and N/P ratio in all organs, and decreased seedling height and C/N ratio in all organs. Moreover, warming (2 A degrees C) decreased seedling height, root length, total biomass, and N concentration in stems but increased the C/N ratio. Furthermore, the combination of drought and warming decreased seedling height and biomass in all organs, which further increased the N concentration and N/P ratio in all organs. A significant decrease in the membrane stability index and an increase in malondialdehyde, superoxide radical (O-2 (-)), and hydrogen peroxide (H2O2) were exactly matched with a dramatic decrease of total biomass under the combination of drought and warming treatment. Together these results implied that drought alone and warming alone were unfavorable for the early growth of A. fabri, and drought plus warming will intensify the opposite effect of drought alone or warming alone. Moreover, N will be a limited nutrient under extant and future climate changes. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Plant Sciences |
| 研究领域[WOS] | Plant Sciences |
| 关键词[WOS] | CLIMATE-CHANGE ; WATER-STRESS ; NITROGEN CONCENTRATION ; USE EFFICIENCY ; WHITE SPRUCE ; ELEVATED CO2 ; GROWTH ; TEMPERATURE ; RESPONSES ; SEEDLINGS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319165500007 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/8311]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Alpine Ecosyst Observat & Expt Stn Gongga Mt, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Grad Coll, Beijing 100039, Peoples R China 4.Leshan Teachers Coll, Sch Tourism & Econ Management, Leshan 614000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yan,Wang, Genxu,Yang, Liudong,et al. Effects of Drought and Warming on Biomass, Nutrient Allocation, and Oxidative Stress in Abies fabri in Eastern Tibetan Plateau[J]. JOURNAL OF PLANT GROWTH REGULATION,2013,32(2):298-306. |
| APA | Yang, Yan,Wang, Genxu,Yang, Liudong,&Guo, Jianying.(2013).Effects of Drought and Warming on Biomass, Nutrient Allocation, and Oxidative Stress in Abies fabri in Eastern Tibetan Plateau.JOURNAL OF PLANT GROWTH REGULATION,32(2),298-306. |
| MLA | Yang, Yan,et al."Effects of Drought and Warming on Biomass, Nutrient Allocation, and Oxidative Stress in Abies fabri in Eastern Tibetan Plateau".JOURNAL OF PLANT GROWTH REGULATION 32.2(2013):298-306. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。