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Table 7 Bootstrap results for mean and total above-ground biomass (AGB) with corresponding 95 % confidence intervals for four model-based methods, compared to a design-based method

From: Model-based estimation of above-ground biomass in the miombo ecoregion of Zambia

Method Mean Total 95 % CI for total AGB Relative efficiency
  AGB (t∙ha−1) AGB (t) (half-width)  
GAM (1) 67.3 69,961,134 694,260 0.82
Sigmoidal (2) 62.1 64,526,209 477,730 1.20
Exponential (3) 61.9 64,316,094 500,070 1.15
Null model 62.8 65,244,018 573,365
Design-based 63.0 65,472,297 13,055,331