Preliminary Study on the Transpiration Rate of Tropical Tree Species in Thailand

Authors

  • Pricha Dhanmanonda Dept. of Silviculture, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.
  • Mamoru Kanzaki Dept. of Biology, Faculty of Science, Osaka City University, Japan.
  • Pongsak Sahunalu Dept. of Silviculture, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.
  • Ladawan Atipanumpai Dept. of Silviculture, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

transpiration rate, tropical tree, transpiration ratio

Abstract

The diffusive resistance and the transpiration rates of 35 species, both exotic and indigenous were measured at four study sites throughout Thailand. The diurnal changes of transpiration rate were observed from morning to evening. The diffusive resistance of most species temporally increased around noon. The transpiration rate fluctuated remarkably with the Photosynthetic Photon Flux Density (PPFD). The effect of leaf ages and the upper and the lower surfaces of leaf on the transpiration rates were discussed. Water consumption in stand level and the transpiration ratio were calculated for E. camaldulensis and A. mangium. E. camaldulensis showed higher water consumption but lower transpiration ratio based on stem biomass compared to A. mangium.

Published

1992-09-30

How to Cite

Pricha Dhanmanonda, Mamoru Kanzaki, Pongsak Sahunalu, and Ladawan Atipanumpai. 1992. “Preliminary Study on the Transpiration Rate of Tropical Tree Species in Thailand”. Agriculture and Natural Resources 26 (3). Bangkok, Thailand:324-31. https://li01.tci-thaijo.org/index.php/anres/article/view/241792.

Issue

Vol. 26 No. 3 (1992): July-September

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.