Machine learning and geostatistical approaches for estimating aboveground biomass in Chinese subtropical forests

Forest Ecosystems

Table 3 Descriptive statistics of the AGB (t∙ha^− 1) of the sample plots in the three forest inventories

Year	Number of sample plots	AGB (t∙ha^− 1)				Number of samples used
Year	Number of sample plots	Value range	Median	Mean	Std Deviation	Training	Validation
1992	201	1.134–50.241	13.511	9.484	6.152	161	40
2002	278	2.388–256.310	55.340	41.856	23.522	222	56
2010	218	4.728–250.881	61.839	47.600	24.924	174	44