A 177 Years Extended of Teak Chronology Revealing to the Climate Variability in Phrae Province, Northern of Thailand

Authors

Kanokrat Buareal
Supaporn Buajan
Sineenart Preechamart
Chotika Muangsong
Nathsuda Pumijumnong

Publication Date

2020-01-01

Abstract

Teak ring-width is one of the promising paleoclimate proxies in the tropical region. Tree-ring chronology spanning from 1840 to 2016 (177 years) was derived from 76trees from Phrae Province, northern Thailand. A total of 141 core samples were cross-dated, a standardized master was constructed, and the tree residual master chronology was developed by ARSTAN program. The tree-ring chronology has a significant positivecorrelation with the monthly rainfall and relative humidity during the monsoon season (May - June). In addition, the growth of tree-ring width also significantly inversely correlated with Niño 3, Niño 3.4, and Niño 4 indices during the second half of the dry season (January - March). We reconstructed summer monsoon season (May - June) rainfall based on a linear regression model which explained 21.95% of the actual rainfall variance. The trend of the reconstructed rainfall record shows a decrease of 0.6 mm per decade and substantially showed four wet periods and five dry periods. These results suggest that this teak chronology has a good potential to be a high-resolution proxy for reconstructing the past local climate in northern Thailand.

First Page

85

Last Page

100

Recommended Citation

Buareal, Kanokrat; Buajan, Supaporn; Preechamart, Sineenart; Muangsong, Chotika; and Pumijumnong, Nathsuda (2020) "A 177 Years Extended of Teak Chronology Revealing to the Climate Variability in Phrae Province, Northern of Thailand," Applied Environmental Research: Vol. 42: No. 1, Article 7.
Available at: https://digital.car.chula.ac.th/aer/vol42/iss1/7