Within-twig biomass allocation in subtropical evergreen broad-leaved species along an altitudinal gradient: allometric scaling analysis
文献类型：期刊论文
| 作者 | Xiang, SA ; Wu, N ; Sun, SC |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2009 |
| 卷号 | 23期号:3页码:637_647 |
| 关键词 | Allometry Biomass allocation Leaf size Petiole Twig Subtropical evergreen broad-leaved forest |
| ISSN号 | 0931-1890 |
| 通讯作者 | Sun, SC, Nanjing Univ, Dept Biol, 22 Hankou Rd, Nanjing 210093, Peoples R China. |
| 中文摘要 | We studied the effects of twig size and altitude on biomass allocation within plant twigs (terminal branches of current-year shoots), to determine whether species with large twigs/leaves or living at low altitude allocate a higher proportion of biomass to laminas than their counterparts with small twigs/leaves or living at high altitude. Stem mass, lamina mass and area, and petiole mass were measured for terminal branches of current-year shoots in 80 subtropical evergreen broad-leaved species belonging to 38 genera from 24 families along an altitudinal gradient of Mt. Emei, Southwest China. The scaling relationships between the biomass allocations of within-twig components were determined using model type II regression method. Isometric relationships were found between leaf mass and twig mass and between lamina mass and twig mass, suggesting that the biomass allocation to either leaves or laminas was independent of twig mass. Petiole mass disproportionally increased with both lamina mass and twig mass, indicating the importance of leaf petioles to the within-twig biomass allocation. These cross-species correlations were consistent with those among evolutionary divergences. In addition, species at low altitude tended to have a greater leaf and lamina mass but a smaller stem mass at a given twig mass than at middle and high altitudes. This is possibly due to the high requirement in physical support and the low efficiency of eco-physiological transport for the species living at high altitude. In general, within-twig biomass allocation pattern was not significantly affected by twig size but was greatly modulated by altitude. |
| 学科主题 | Forestry |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KZCX2-XB2-02]; National Science Foundation of China [30670333]; NCET |
| 语种 | 英语 |
| 公开日期 | 2011-07-08 |
| 源URL | [http://210.75.237.14/handle/351003/22378]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Xiang, SA,Wu, N,Sun, SC. Within-twig biomass allocation in subtropical evergreen broad-leaved species along an altitudinal gradient: allometric scaling analysis[J]. TREES-STRUCTURE AND FUNCTION,2009,23(3):637_647. |
| APA | Xiang, SA,Wu, N,&Sun, SC.(2009).Within-twig biomass allocation in subtropical evergreen broad-leaved species along an altitudinal gradient: allometric scaling analysis.TREES-STRUCTURE AND FUNCTION,23(3),637_647. |
| MLA | Xiang, SA,et al."Within-twig biomass allocation in subtropical evergreen broad-leaved species along an altitudinal gradient: allometric scaling analysis".TREES-STRUCTURE AND FUNCTION 23.3(2009):637_647. |
入库方式： OAI收割
来源：成都生物研究所
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