Table 1 Generalized linear model (glm) for Shannon–Weaver index values, specific richness, abundance, and analysis of variance (ANOVA) of one factor (area) was performed for carbon stock, basal area and canopy area

df

Chi-squared

Sig

Shannon index

17

81.429

.000

Species richness

8

68.411

.000

Abundance

18

155.394

.000

Sum of Square

df

Mean Square

F

Sig

Carbon stock

Between Groups

550.841

2

275.421

14.573

.000

Within Groups

623.674

33

18.899

Total

1174.516

35

Basal area

Between Groups

419.906

2

209.953

15.839

.000

Within Groups

437.442

33

13.256

Total

857.348

35

Canopy area

Between Groups

946,792,272.453

2

473,396,136.227

33.407

.000

Within Groups

467,627,393.550

33

14,170,527.077

Total

1,414,419,666.003

35