A Study on the Relationship between Teak (Tectona grandis L.f.) Growth and Climate Change using Dendrochronology in Mae Ka Sub-district, Mueang District, Phayao Province.

Abstract

The relationship research between the growth of Teak trees and climate change (temperature and rainfall) using dendrochronological methods in Mae Ka Subdistrict, Mueang District, Phayao Province. The study was conducted in two areas: the teak experimental plot in front of the University of Phayao and the plot in the Ban Mo Kaeng Thong community, by placing a plot of 50x20 meters, and collecting the wood core samples for annual rings using dendrochronological methods. The annual ring width was measured, and analyzed the correlation between tree growth and information related to climate data (temperature and rainfall) over the past 39 years from Phayao Meteorological Station. The results revealed that the growth rates of Teak in both study areas were unstable. During 1-2 years of the growth, significantly high during the first 1–2 years, followed by fluctuating patterns of increase and decrease in subsequent years. Furthermore, the study shows that temperature had no significant correlation with tree-ring growth in both locations. On the other hand, rainfall was revealed to have a significant relationship with tree-ring growth in both locations.