Global change ecology - Original research


, Volume 174, Issue 4, pp 1449-1461

First online:

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

  • Mart VlamAffiliated withForest Ecology and Forest Management Group, Wageningen University Email author 
  • , Patrick J. BakerAffiliated withDepartment of Forest and Ecosystem Science, University of Melbourne
  • , Sarayudh BunyavejchewinAffiliated withDepartment of National Parks, Wildlife and Plant Conservation
  • , Pieter A. ZuidemaAffiliated withForest Ecology and Forest Management Group, Wageningen University

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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.


Climate–growth relationship Global change Thailand Tree rings Tropical tree