Leaf traits and associated ecosystem characteristics across subtropical and timberline forests in the Gongga Mountains, Eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Luo, TX1; Luo, J2 ; Pan, Y3
|
| 刊名 | OECOLOGIA
 |
| 出版日期 | 2005 |
| 卷号 | 142期号:2页码:261-273 |
| 关键词 | altitudinal patterns leaves tree canopies communities scaling-up |
| ISSN号 | 0029-8549 |
| 通讯作者 | Luo, TX |
| 英文摘要 | Knowledge of how leaf characteristics might be used to deduce information on ecosystem functioning and how this scaling task could be done is limited. In this study, we present field data for leaf lifespan, specific leaf area (SLA) and mass and area-based leaf nitrogen concentrations (N-mass, N-area) of dominant tree species and the associated stand foliage N-pool, leaf area index (LAI), root biomass, aboveground biomass, net primary productivity (NPP) and soil available-N content in six undisturbed forest plots along subtropical to timberline gradients on the eastern slope of the Gongga Mountains. We developed a methodology to calculate the whole-canopy mean leaf traits to include all tree species (groups) in each of the six plots through a series of weighted averages scaled up from leaf-level measurements. These defined whole-canopy mean leaf traits were equivalent to the traits of a leaf in regard to their Interrelationships and altitudinal trends, but were more useful for large-scale pattern analysis of ecosystem structure and function. The whole-canopy mean leaf lifespan and leaf N-mass mainly showed significant relationships with stand foliage N-pool, NPP, LAI and root biomass. In general, as elevation increased, the whole-canopy mean leaf lifespan and leaf N-area and stand LAI and foliage N-pool increased to their maximum, whereas the whole-canopy mean SLA and leaf N-mass and stand NPP and root biomass decreased from their maximum. The whole-canopy mean leaf lifespan and stand foliage N-pool both converged towards threshold-like logistic relationships with annual mean temperature and soil available-N variables. Our results are further supported by additional literature data in the Americas and eastern China. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Ecology |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | AREA INDEX ; LIFE-SPAN ; NITROGEN CONCENTRATION ; STOMATAL CONDUCTANCE ; CONIFEROUS FORESTS ; USE EFFICIENCY ; CARBON GAIN ; PLANT ; CANOPY ; PHOTOSYNTHESIS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000226285000012 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10502]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 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.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Haidian Dist, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.US Forest Serv, USDA, No Global Change Res Program, Newtown Sq, PA 19073 USA |
| 推荐引用方式 GB/T 7714 | Luo, TX,Luo, J,Pan, Y. Leaf traits and associated ecosystem characteristics across subtropical and timberline forests in the Gongga Mountains, Eastern Tibetan Plateau[J]. OECOLOGIA,2005,142(2):261-273. |
| APA | Luo, TX,Luo, J,&Pan, Y.(2005).Leaf traits and associated ecosystem characteristics across subtropical and timberline forests in the Gongga Mountains, Eastern Tibetan Plateau.OECOLOGIA,142(2),261-273. |
| MLA | Luo, TX,et al."Leaf traits and associated ecosystem characteristics across subtropical and timberline forests in the Gongga Mountains, Eastern Tibetan Plateau".OECOLOGIA 142.2(2005):261-273. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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