FORRU's Student Support Grants in 2026

Phenology of Five Tree Species (Sai Yoi Bai Tu, Champi Pa, Kamyan, Masak, and Ka-uam) in the Deciduous Forest on Doi Suthep.

Observed tree phenology by using semi-quantitative scoring for leaf flushing, flowering, and fruiting.This research project is being conducted by Miss Waralee Vijitpunya.

The study aims to examine seasonal changes in selected tree species within a tropical evergreen forest. The study focuses on four species: Ficus benjamina, Magnolia baillonii, Styrax tonkinensis, Sapindus rarak and Ka-uam. Key phenological stages, including leaf flushing, flowering, and fruiting, are monitored to understand species-specific seasonal patterns.

Field data are collected through continuous observations, with temporal records used to analyze phenological trends. This study provides insights into plant–climate relationships and helps assess the potential impacts of climate change on forest ecosystems.

The findings are expected to support forest conservation and restoration planning, as well as sustainable resource management. Additionally, the research contributes to ecological knowledge of native tree species in the Doi Suthep area and provides valuable baseline data for future ecological studies in Thailand.

A Study on the Phenology of Evergreen Tree Species in the Doi Suthep Forest.

This project is being conducted by Miss Banthita Sirinil, an undergraduate student. The objective of this research is to examine seasonal changes in native tree, including leaf flushing, flowering, and fruiting, over a one-year period.

Miss Waralee Vijitpunya and Miss Banthita Sirinil, who are the 2026 FORRU grantees.The selected tree species for this study include Garcinia mckeaniana, Baccaurea ramiflora, Cryptocarya amygdalina, and Morus macroura. The study area is located in the montane evergreen forest of Doi Suthep, an ecosystem characterized by high biodiversity and playing a crucial role in carbon sequestration and watershed protection.

The research methodology involves monthly field surveys of selected tree individuals, recording their phenological stages, and collecting climate data such as temperature and rainfall. These data will be analyzed to determine their relationship with plant phenological patterns. In addition, historical data will be compared with current observations to assess the impacts of climate change.

The findings of this study are expected to enhance understanding of tree responses to environmental factors and contribute to the conservation and restoration of ecosystems in the long term.