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Table 1 Local AGB equations from previous studies and their errors, when compared with our dataset

From: Improved allometric equations for tree aboveground biomass estimation in tropical dipterocarp forests of Kalimantan, Indonesia

Model Name

AGB Equations

MRE

MARE

Intercept (SE)

Slope (SE)

D Bas (Basuki et al. 2009)

AGB = 0.318 D 2.196

−0.210

0.370

−305 (407)

1.865b(0.084)

D Bro Brown (1997)

AGB = 42.69 − 12.8 D + 1.242 D 2

0.085

0.352

−469 (411)

1.345 (0.006)

D Bro2 (Brown 1997)

AGB = exp (−2.134 + 2.53 ln D)

0.043

0.321

576 (393)

0.961 (0.045)

DG Bas (Basuki et al. 2009)

AGB = 0.4975 D 2.188 G 0.832

−0.232

0.312

−602a (284)

1.885b (0.057)

DĤ Bas (Basuki et al. 2009)

AGB = 0.106 D 2.03 Ĥ 0.542

−0.345

0.392

−358 (410)

2.145b (0.098)

D Has (Hashimoto et al. 2004)

AGB = 0.08127 D 2.44

−0.495

0.508

353 (395)

2.196b (0.101)

DH Yam (Yamakura et al. 1986a)

B s = 0.02909 (D 2 H)0.9813

B b = 0.1192 (B s )1.059

B l = 0.09146 (B s  + B b)0.7266

AGB = (0.02909 (D 2 H)0.9813 + 0.1192 (0.02909 (D 2 H)0.9813)1.059 + 0.09146 ((0.02909 (D 2 H)0.9813) + (0.1192 (0.02909 (D 2 H)0.9813)1.059))0.7266

−0.087

0.320

1185a (385)

0.933b (0.045)

DGH Cha

0.0673(D 2 GH)0.976

0.002

0.216

813a (264)

0.875b (0.027)

  1. aand bdenote significant difference to 0 and 1, respectively. AGB is in kg. D is tree diameter (cm), H is total tree height (in m), Ĥ is commercial bole height (in m) and G is wood density (in gr∙cm−3). Values in parentheses are standard errors