Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits
文献类型：期刊论文
| 作者 | Madanes, N.1; Cristiano, Piedad M.1; Hao, Guang-You5,6; Goldstein, Guillermo1,3,7; Holbrook, N. Michele6; Carrasco, Laureano Oliva1,2,3; Bucci, Sandra J.3,4; Di Francescantonio, Debora2,3; Lezcano, Oscar A.2; Campanello, Paula I.2,3 |
| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 35期号:4页码:354-365 |
| 关键词 | Hydraulic Safety Margin Sap Flow Sapwood Capacitance Stored Water Use Volumetric Water Content |
| ISSN号 | 0829-318X |
| DOI | 10.1093/treephys/tpu087 |
| 英文摘要 | Wood biophysical properties and the dynamics of water storage discharge and refilling were studied in the trunk of canopy tree species with diverse life history and functional traits in subtropical forests of northeast Argentina. Multiple techniques assessing capacitance and storage capacity were used simultaneously to improve our understanding of the functional significance of internal water sources in trunks of large trees. Sapwood capacitances of 10 tree species were characterized using pressure-volume relationships of sapwood samples obtained from the trunk. Frequency domain reflectometry was used to continuously monitor the volumetric water content in the main stems. Simultaneous sap flow measurements on branches and at the base of the tree trunk, as well as diurnal variations in trunk contraction and expansion, were used as additional measures of stem water storage use and refilling dynamics. All evidence indicates that tree trunk internal water storage contributes from 6 to 28% of the daily water budget of large trees depending on the species. The contribution of stored water in stems of trees to total daily transpiration was greater for deciduous species, which exhibited higher capacitance and lower sapwood density. A linear relationship across species was observed between wood density and growth rates with the higher wood density species (mostly evergreen) associated with lower growth rates and the lower wood density species (mostly deciduous) associated with higher growth rates. The large sapwood capacitance in deciduous species may help to avoid catastrophic embolism in xylem conduits. This may be a low-cost adaptation to avoid water deficits during peak water use at midday and under temporary drought periods and will contribute to higher growth rates in deciduous tree species compared with evergreen ones. Large capacitance appears to have a central role in the rapid growth patterns of deciduous species facilitating rapid canopy access as these species are less shade tolerant than evergreen species. |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000354778300003 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://210.72.129.5/handle/321005/122035]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Campanello, Paula I. |
| 作者单位 | 1.Univ Buenos Aires, Fac Ciencias Exactas & Nat, CONICET, Lab Ecol Func,Dept Ecol Genet & Evolu,Inst IEGEBA, Buenos Aires, DF, Argentina 2.Univ Nacl Misiones, FCF, IBS, Lab Ecol Forestal & Ecofisiol, RA-3370 Puerto Iguazu, Misiones, Argentina 3.Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina 4.Univ Nacl Patagonia San Juan Bosco, Fac Ciencias Nat, Grp Estudios Biofis & Ecofisiol, Comodoro Rivadavia, Argentina 5.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Liaoning, Peoples R China 6.Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA 7.Univ Miami, Dept Biol, Coral Gables, FL 33124 USA |
| 推荐引用方式 GB/T 7714 | Madanes, N.,Cristiano, Piedad M.,Hao, Guang-You,et al. Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits[J]. TREE PHYSIOLOGY,2015,35(4):354-365. |
| APA | Madanes, N..,Cristiano, Piedad M..,Hao, Guang-You.,Goldstein, Guillermo.,Holbrook, N. Michele.,...&Rodriguez, Sabrina.(2015).Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits.TREE PHYSIOLOGY,35(4),354-365. |
| MLA | Madanes, N.,et al."Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits".TREE PHYSIOLOGY 35.4(2015):354-365. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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