Skip to main content

Table 3 Average bias (kg) produced by different sampling methods and sample sizes based on 5,000 simulations

From: Evaluation of sampling strategies to estimate crown biomass

Sample size

Sampling strategies

SRS

SRS-RAT

PPS

SYS

SYS-RAT

STR

STR-RAT

STR-PPS

3

0.237

−4.091

−0.158

0.433

−9.320

−0.659

−3.554

−0.104

6

0.215

−1.711

0.010

0.139

−1.922

0.399

−1.387

−0.101

9

−0.081

−0.937

−0.068

0.133

0.166

0.191

−0.857

−0.094

12

−0.030

−0.894

0.158

0.043

−0.078

−0.242

−0.776

−0.073