Growth Models of Teak at Mae Mo Plantation, Lampang Province

Abstract

A study on the growth of teak plantations was conducted at the Forest Industry Organization (FIO). The technique of tree ring analysis was used to investigate the growth of teak. Growth models for teak were developed using the technique of regression analysis. The results indicated that diameter growth of teak at the Mae Mo plantation ranged from 0.547 to 9.650 mm yr^-1 as current annual increment (CAI), and from 1.163 to 7.487 mm yr^-1 as average increment or mean annual increment (MAI). The best regression equations for a predicting diameter growth and diameter at breast height (dbh), of teak were expressed as power equations. Because the trees were bored for measured tree ring width at 1.30 m height, this model can not predict dbh at 1-5 years.

Key words: growth models, teak, tree ring analysis, Mae Mo Plantation