Forest Ecosystems

Table 6 Relative RMSE percent 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
Sample size	SRS	SRS-RAT	PPS	SYS	SYS-RAT	STR	STR-RAT	STR-PPS
3	55.70	25.72	23.46	72.02	28.80	53.41	25.61	21.57
6	38.07	17.93	18.23	35.23	17.53	36.63	17.78	17.59
9	30.38	14.19	15.83	23.58	13.29	29.03	14.07	15.55
12	25.42	11.92	14.40	18.37	11.11	24.27	11.76	14.22

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