Quantifying the short-term dynamics of soil organic carbon decomposition using a power function model

Ecological Processes

Table 3 Half-life (t _1/2) of soil heterotrophic respiration (R _h) for three subtropical forest soils incubated over 90 days under five temperature and five moisture levels

	PE^a		SS		CB
	Half-life (t _1/2)	R _h(t _1/2)	Half-life(t _1/2)	R _h(t _1/2)	Half-life (t _1/2)	R _h(t _1/2)
Temperature (^oC)
10	18.8	0.314	161.4	0.291	13.3	0.374
17	17.3	0.384	175.0	0.351	9.6	0.569
24	18.4	0.472	63.8	0.499	10.6	0.728
31	15.5	0.638	13.5	0.823	13.3	1.027
38	15.7	0.856	19.9	0.956	17.5	1.261
Moisture (% water holding capacity)
20%	34.8	0.247	79.3	0.257	31.3	0.288
40%	13.0	0.423	29.1	0.519	12.1	0.590
60%	19.9	0.712	31.1	1.059	8.3	1.464
80%	13.6	0.789	31.4	0.631	9.1	1.182
100%	14.6	0.529	46.9	0.457	15.1	0.681

^aPE, SS, and CB represent the P. elliottii plantation, S. superba plantation, and conifer and broadleaf mixed forest soils, respectively