Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits
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 us...
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todo:paper_0829318X_v35_n4_p354_OlivaCarrasco2023-10-03T15:40:07Z Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits Oliva Carrasco, L. Bucci, S.J. Di Francescantonio, D. Lezcano, O.A. Campanello, P.I. Scholz, F.G. Rodríguez, S. Madanes, N. Cristiano, P.M. Hao, G.-Y. Holbrook, N.M. Goldstein, G. hydraulic safety margin sap flow sapwood capacitance stored water use volumetric water content deciduous tree growth rate life history trait sap flow shade tolerance water content water storage water use wood water drought evapotranspiration growth, development and aging metabolism physiology plant stem tree tropic climate wood xylem Droughts Plant Stems Plant Transpiration Trees Tropical Climate Water Wood Xylem 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. © 2014 The Author. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0829318X_v35_n4_p354_OlivaCarrasco |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
hydraulic safety margin sap flow sapwood capacitance stored water use volumetric water content deciduous tree growth rate life history trait sap flow shade tolerance water content water storage water use wood water drought evapotranspiration growth, development and aging metabolism physiology plant stem tree tropic climate wood xylem Droughts Plant Stems Plant Transpiration Trees Tropical Climate Water Wood Xylem |
| spellingShingle |
hydraulic safety margin sap flow sapwood capacitance stored water use volumetric water content deciduous tree growth rate life history trait sap flow shade tolerance water content water storage water use wood water drought evapotranspiration growth, development and aging metabolism physiology plant stem tree tropic climate wood xylem Droughts Plant Stems Plant Transpiration Trees Tropical Climate Water Wood Xylem Oliva Carrasco, L. Bucci, S.J. Di Francescantonio, D. Lezcano, O.A. Campanello, P.I. Scholz, F.G. Rodríguez, S. Madanes, N. Cristiano, P.M. Hao, G.-Y. Holbrook, N.M. Goldstein, G. Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| topic_facet |
hydraulic safety margin sap flow sapwood capacitance stored water use volumetric water content deciduous tree growth rate life history trait sap flow shade tolerance water content water storage water use wood water drought evapotranspiration growth, development and aging metabolism physiology plant stem tree tropic climate wood xylem Droughts Plant Stems Plant Transpiration Trees Tropical Climate Water Wood Xylem |
| description |
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. © 2014 The Author. |
| format |
JOUR |
| author |
Oliva Carrasco, L. Bucci, S.J. Di Francescantonio, D. Lezcano, O.A. Campanello, P.I. Scholz, F.G. Rodríguez, S. Madanes, N. Cristiano, P.M. Hao, G.-Y. Holbrook, N.M. Goldstein, G. |
| author_facet |
Oliva Carrasco, L. Bucci, S.J. Di Francescantonio, D. Lezcano, O.A. Campanello, P.I. Scholz, F.G. Rodríguez, S. Madanes, N. Cristiano, P.M. Hao, G.-Y. Holbrook, N.M. Goldstein, G. |
| author_sort |
Oliva Carrasco, L. |
| title |
Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| title_short |
Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| title_full |
Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| title_fullStr |
Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| title_full_unstemmed |
Water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| title_sort |
water storage dynamics in the main stem of subtropical tree species differing in wood density, growth rate and life history traits |
| url |
http://hdl.handle.net/20.500.12110/paper_0829318X_v35_n4_p354_OlivaCarrasco |
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