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Temperature and rainfall strongly drive temporal growth variation in Asian tropical forest trees

Vlam, Mart ; Baker, Patrick J ; Bunyavejchewin, Sarayudh ; Zuidema, Pieter A

Oecologia, 2014-04, Vol.174 (4), p.1449-1461 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

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Título:
Temperature and rainfall strongly drive temporal growth variation in Asian tropical forest trees
Autor: Vlam, Mart ; Baker, Patrick J ; Bunyavejchewin, Sarayudh ; Zuidema, Pieter A
Assuntos: Analysis ; Animal and plant ecology ; Animal, plant and microbial ecology ; Archaeological dating ; Biological and medical sciences ; Biomedical and Life Sciences ; Bosecologie en Bosbeheer ; canopy ; Carbon ; Carbon Cycle ; climate ; Climate Change ; Climate models ; Climate sensitivity ; Climatology. Bioclimatology. Climate change ; correlation ; Dendrochronology ; Dendroclimatology ; dry season ; Earth, ocean, space ; Ecology ; Exact sciences and technology ; External geophysics ; Forest Ecology and Forest Management ; Forest trees ; Forestry ; Fundamental and applied biological sciences. Psychology ; General aspects ; General forest ecology ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; GLOBAL CHANGE ECOLOGY ; Global change ecology - Original research ; Global warming ; Growth rings ; Hydrology/Water Resources ; leaves ; Leerstoelgroep Bosecologie en bosbeheer ; Life Sciences ; Linear Models ; Meteorology ; PE&RC ; Plant Sciences ; Precipitation variability ; Rain ; Rain and rainfall ; Temperature ; Thailand ; Tree growth ; Trees ; Trees - growth & development ; Trees - physiology ; Tropical Climate ; Tropical climates ; Tropical forests ; understory ; Water ; wet season
É parte de: Oecologia, 2014-04, Vol.174 (4), p.1449-1461
Notas: http://dx.doi.org/10.1007/s00442-013-2846-x
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Descrição: Climate change effects on growth rates of tropical trees may lead to alterations in carbon cycling of carbon-rich tropical forests. However, climate sensitivity of broad-leaved lowland tropical trees is poorly understood. Dendrochronology (tree-ring analysis) provides a powerful tool to study the relationship between tropical tree growth and annual climate variability. We aimed to establish climate–growth relationships for five annual-ring forming tree species, using ring-width data from 459 canopy and understory trees from a seasonal tropical forest in western Thailand. Based on 183/459 trees, chronologies with total lengths between 29 and 62 years were produced for four out of five species. Bootstrapped correlation analysis revealed that climate–growth responses were similar among these four species. Growth was significantly negatively correlated with current-year maximum and minimum temperatures, and positively correlated with dry-season precipitation levels. Negative correlations between growth and temperature may be attributed to a positive relationship between temperature and autotrophic respiration rates. The positive relationship between growth and dry-season precipitation levels likely reflects the strong water demand during leaf flush. Mixed-effect models yielded results that were consistent across species: a negative effect of current wet-season maximum temperatures on growth, but also additive positive effects of, for example, prior dry-season maximum temperatures. Our analyses showed that annual growth variability in tropical trees is determined by a combination of both temperature and precipitation variability. With rising temperature, the predominantly negative relationship between temperature and growth may imply decreasing growth rates of tropical trees as a result of global warming.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

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Temperature and rainfall strongly drive temporal growth variation in Asian tropical forest trees

Vlam, Mart ; Baker, Patrick J ; Bunyavejchewin, Sarayudh ; Zuidema, Pieter A

Berlin/Heidelberg: Springer-Verlag

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