Modeling Tree Growth of Terminalia alata in Nepal
Author Information
Author(s): Gautam Pratima, Joshi Rajeev, Ayer Santosh, Gautam Jeetendra, Bhatta Kishor Prasad, Lamichhane Prakash
Primary Institution: Agriculture and Forestry University, Nepal
Hypothesis
This research aimed to create an individual tree diameter growth model specifically for Terminalia alata in the Terai Arc Landscape of Nepal.
Conclusion
The study found that diameter growth rates varied significantly across different tree diameter classes and quality classes, with the best-fitting model being the generalized additive model.
Supporting Evidence
- The study observed higher mean diameter growth rates in the 0–25 cm and 101–125 cm tree diameter classes.
- Significant differences in diameter growth were found across tree quality classes.
- The generalized additive model performed better than the linear mixed model and the multiple linear model.
Takeaway
This study helps us understand how fast a specific tree species, Terminalia alata, grows in Nepal, which can help in managing forests better.
Methodology
The study used multiple linear, linear mixed, and generalized additive models to analyze tree growth data collected from 673 sample plots over three time periods.
Limitations
The models explained only a small proportion of the variance in diameter growth, indicating the need for further refinement and consideration of additional factors.
Statistical Information
P-Value
0.0254
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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