RADIATIONE ENVIRONMENT OF MANGROVE PNEUMATOPHORES

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Vipak Jintana
Takechi Hirano
Toshio Ichikawa

Abstract

The pneumatophores of the mangrove species namely Avicenia and Sonneratia photosynthesize and the photosynthetically generated O2 is used for the respiration of the roots in subsoil. In order to know radiation environment of the phematophores, we measured solar radiation on the vertical surface (Rv) in water with dye films. The average Rv at 30 cm depth during the daytime was similar to the light compensation pionts in the pneumatophores. From this result, it can be supposed that in the daytime the photosynthesis nearly compensated the respiration at a depth of 30 cm and supplied O2 to the roots in subsoil at shallower places, even when the pneumatophores submerged.

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How to Cite
Jintana, V., Hirano, T., & Ichikawa, T. (2022). RADIATIONE ENVIRONMENT OF MANGROVE PNEUMATOPHORES. Thai Journal of Forestry, 15(2), 111–117. Retrieved from https://li01.tci-thaijo.org/index.php/tjf/article/view/256085
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Original Articles