Teak (Tectona grandis Linn. f) and Edaphic Factors Affecting the Regeneration of Woody Species and Their Functional Traits in Economic Forest Plantation, Northern Thailand

Table 7

Mean ± standard deviation (SD) of the community weighted mean (CWM) of leaf area (LA), specific leaf area (SLA), leaf thickness (LT), leaf dry matter content (LDMC), and wood density (WD) in teak plantation and old-growth forest plots in Khun Mae Khum Mee plantation.

CWM	10-year-old	20-year-old	30-year-old	40-year-old	Old-growth forest	Sig
LT	0.31 ± 0.01^a	0.31 ± 0.02^a	0.26 ± 0.02^b	0.26 ± 0.02^b	0.27 ± 0.02^b
LA	538.22 ± 155.93^ab	618.39 ± 81.46^a	314.30 ± 90.67^c	444.69 ± 86.61^bc	317.47 ± 86.05^c
SLA	121.25 ± 10.78^ab	113.19 ± 4.87^b	133.36 ± 12.51^a	133.78 ± 8.17^a	132.49 ± 12.57^a
LDMC	397.32 ± 38.71^b	417.93 ± 30.67^ab	392.69 ± 19.10^b	414.10 ± 24.45^ab	440.89 ± 49.44^a
WD	0.64 ± 0.03^b	0.66 ± 0.02^b	0.71 ± 0.04^a	0.72 ± 0.03^a	0.74 ± 0.03^a

Different lowercase letters within a row indicate significantly different means by Tukey’s test (one-way ANOVA ; n = 50). ; .