Size-dependent mortality in a Neotropical savanna tree: The role of height-related adjustments in hydraulic architecture and carbon allocation
Size-related changes in hydraulic architecture, carbon allocation and gas exchange of Sclerolobium paniculatum (Leguminosae), a dominant tree species in Neotropical savannas of central Brazil (Cerrado), were investigated to assess their potential role in the dieback of tall individuals. Trees greate...
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2009
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| 005 | 20230518205443.0 | ||
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| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
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| 100 | 1 | |a Zhang, Y.-J. | |
| 245 | 1 | 0 | |a Size-dependent mortality in a Neotropical savanna tree: The role of height-related adjustments in hydraulic architecture and carbon allocation |
| 260 | |c 2009 | ||
| 270 | 1 | 0 | |m Meinzer, F. C.; USDA Forest Service, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, United States; email: rick.meinzer@oregonstate.edu |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a Size-related changes in hydraulic architecture, carbon allocation and gas exchange of Sclerolobium paniculatum (Leguminosae), a dominant tree species in Neotropical savannas of central Brazil (Cerrado), were investigated to assess their potential role in the dieback of tall individuals. Trees greater than ∼6-m-tall exhibited more branch damage, larger numbers of dead individuals, higher wood density, greater leaf mass per area, lower leaf area to sapwood area ratio (LA/SA), lower stomatal conductance and lower net CO2 assimilation than small trees. Stem-specific hydraulic conductivity decreased, while leaf-specific hydraulic conductivity remained nearly constant, with increasing tree size because of lower LA/SA in larger trees. Leaves were substantially more vulnerable to embolism than stems. Large trees had lower maximum leaf hydraulic conductance (Kleaf) than small trees and all tree sizes exhibited lower Kleaf at midday than at dawn. These size-related adjustments in hydraulic architecture and carbon allocation apparently incurred a large physiological cost: large trees received a lower return in carbon gain from their investment in stem and leaf biomass compared with small trees. Additionally, large trees may experience more severe water deficits in dry years due to lower capacity for buffering the effects of hydraulic path-length and soil water deficits. © 2009 Blackwell Publishing Ltd. |l eng | |
| 593 | |a Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China | ||
| 593 | |a Department of Biology, University of Miami, PO Box 249118, Coral Gables, FL 33124, United States | ||
| 593 | |a Graduate School, Chinese Academy of Sciences, Beijing 100039, China | ||
| 593 | |a USDA Forest Service, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, United States | ||
| 593 | |a Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Laboratorio de Ecologia Funcional, Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Argentina | ||
| 593 | |a Departamento de Ecologia, Universidade de Brasilia, Caixa Postal 04457, Brasilia DF 70904970, Brazil | ||
| 593 | |a Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States | ||
| 593 | |a Department of Plant Biology, North Carolina State University, Raleigh, NC 27695-7612, United States | ||
| 593 | |a Consejo Nac. de Investigaciones Cientificas y Tecnicas, Laboratorio de Ecologia Funcional, Ciudad Universitaria, Nuñez, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a CARBON BALANCE |
| 690 | 1 | 0 | |a HYDRAULIC CONDUCTIVITY |
| 690 | 1 | 0 | |a POPULATION DYNAMICS |
| 690 | 1 | 0 | |a TREE DIEBACK |
| 690 | 1 | 0 | |a XYLEM CAVITATION |
| 690 | 1 | 0 | |a CARBON DIOXIDE |
| 690 | 1 | 0 | |a WATER |
| 690 | 1 | 0 | |a BIOMASS ALLOCATION |
| 690 | 1 | 0 | |a CARBON BALANCE |
| 690 | 1 | 0 | |a CAVITATION |
| 690 | 1 | 0 | |a DIEBACK |
| 690 | 1 | 0 | |a HYDRAULIC CONDUCTIVITY |
| 690 | 1 | 0 | |a MORTALITY |
| 690 | 1 | 0 | |a NEOTROPICAL REGION |
| 690 | 1 | 0 | |a SAVANNA |
| 690 | 1 | 0 | |a SOIL WATER |
| 690 | 1 | 0 | |a XYLEM |
| 690 | 1 | 0 | |a ARTICLE |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a EVAPOTRANSPIRATION |
| 690 | 1 | 0 | |a LEGUME |
| 690 | 1 | 0 | |a METABOLISM |
| 690 | 1 | 0 | |a PHYSIOLOGY |
| 690 | 1 | 0 | |a PLANT LEAF |
| 690 | 1 | 0 | |a PLANT STEM |
| 690 | 1 | 0 | |a PLANT STOMA |
| 690 | 1 | 0 | |a TREE |
| 690 | 1 | 0 | |a WOOD |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a CARBON DIOXIDE |
| 690 | 1 | 0 | |a FABACEAE |
| 690 | 1 | 0 | |a PLANT LEAVES |
| 690 | 1 | 0 | |a PLANT STEMS |
| 690 | 1 | 0 | |a PLANT STOMATA |
| 690 | 1 | 0 | |a PLANT TRANSPIRATION |
| 690 | 1 | 0 | |a TREES |
| 690 | 1 | 0 | |a WATER |
| 690 | 1 | 0 | |a WOOD |
| 690 | 1 | 0 | |a BRAZIL |
| 690 | 1 | 0 | |a FABACEAE |
| 690 | 1 | 0 | |a SCLEROLOBIUM PANICULATUM |
| 650 | 1 | 7 | |2 spines |a CARBON |
| 650 | 1 | 7 | |2 spines |a CARBON |
| 651 | 4 | |a SOUTH AMERICA | |
| 700 | 1 | |a Meinzer, F.C. | |
| 700 | 1 | |a Hao, G.-Y. | |
| 700 | 1 | |a Scholz, F.G. | |
| 700 | 1 | |a Bucci, S.J. | |
| 700 | 1 | |a Takahashi, F.S.C. | |
| 700 | 1 | |a Villalobos-Vega, R. | |
| 700 | 1 | |a Giraldo, J.P. | |
| 700 | 1 | |a Cao, K.-F. | |
| 700 | 1 | |a Hoffmann, W.A. | |
| 700 | 1 | |a Goldstein, G. | |
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