Table 1.

Global absolute loss of soil organic carbon (SOC) under different warming levels predicted by meta-forest model using SOC stocks from three global maps

Data sets	Soil layers (m)	SOC stock (Pg)	The sum of absolute losses across global upland pixels (Pg)
			+1 °C	+2 °C	+3 °C	+4 °C	+5 °C
WISE	0–0.3	830.3	−166.1 ± 45.9	−193.8 ± 51.5	−213.4 ± 50.1	−242.7 ± 53.0	−261.6 ± 64.3
	0.3–1	996.3	−281.0 ± 61.0	−313.9 ± 65.2	−331.6 ± 67.4	−361.9 ± 73.6	−379.6 ± 82.6
	1–2	988.2	−294.5 ± 64.4	−322.0 ± 69.5	−335.6 ± 72.0	−365.6 ± 77.6	−382.7 ± 84.6
HWSDa	0–0.3	708.4	−115.5 ± 42.2	−137.0 ± 42.5	−154.5 ± 43.7	−180.7 ± 49.6	−195.7 ± 52.5
	0.3–1	858.0	−215.6 ± 52.4	−242.2 ± 55.7	−257.5 ± 54.8	−286.1 ± 65.6	−300.9 ± 70.5
SoilGrids	0–0.3	1172.2	−343.6 ± 67.2	−396.3 ± 72.2	−425.5 ± 74.1	−462.7 ± 79.1	−485.0 ± 89.4
	0.3–1	1838.4	−739.1 ± 120.0	−817.9 ± 130.6	−844.8 ± 170.4	−882.3 ± 152.4	−906.7 ± 167.5
	1–2	2785.5	−1278.0 ± 227.0	−1383.1 ± 203.1	−1408.0 ± 235.5	−1444.8 ± 261.5	−1475.7 ± 285.2
Average across datasets	0–0.3b	903.6	−208.4 ± 51.8	−242.4 ± 55.4	−264.5 ± 56.0	−295.4 ± 60.6	−314.1 ± 68.7
	0.3–1b	1181.0	−378.5 ± 74.4	−422.9 ± 79.4	−443.6 ± 93.8	−475.0 ± 91.9	−494.0 ± 100.9
	1–2c	1886.8	−786.3 ± 145.7	−852.6 ± 136.3	−871.8 ± 153.8	−905.2 ± 169.6	−929.2 ± 184.9
	0–1b	2134.5	−620.3 ± 129.6	−700.4 ± 139.2	−742.4 ± 153.5	−805.5 ± 157.8	−843.2 ± 175.6
	0–2c	4305.5	−1551.2 ± 292.8	−1713.5 ± 296.1	−1779.5 ± 334.8	−1880.0 ± 348.6	−1945.7 ± 386.8

Values show the mean ± 95% confidence interval.

^aHWSD does not report SOC stock in the 1–2 m soil layer depth.

^bThe average values were derived based on SOC stock estimates of WISE, HWSD and SoilGrids.

^cThe average values were derived based on SOC stock estimates of WISE and SoilGrids.