Setting priorities for land management to mitigate climate change

Table 1 C stocks, annual harvest and substitution averaged over 300 years

Equation 3	C_ecosystem			C_products			ΔC_ecosystem (300)			Substitution_produucts (300)			Substitution_energy (300)
System	Average C stock in ecosystem [t C ha ^-1 ]			Average C stock in products [t C ha ^-1 ]			Average annual harvest [t C ha ^-1 yr ^-1 ]			Average annual substitution in products [t C ha ^-1 yr ^-1 ]			Average annual substitution in energy [t C ha ^-1 yr ^-1 ]
	high	medium	low	high	medium	low	high	medium	low	high	medium	low	high	medium	low
							Forestry
Picea, timber	217	191	166	108	93	77	2.3	1.96	1.6	0.19	0.16	0.13	0.94	0.81	0.67
Picea, energy	249	217	187	59	51	42	1.9	1.62	1.3	0	0	0	0.87	0.74	0.60
Fagus, timber	232	216	200	50	46	43	1.9	1.76	1.6	0.04	0.04	0.04	0.88	0.82	0.76
Fagus,	399	372	345	28	26	24	0	0	0	0	0	0	0	0	0
conservation
							Cropland
Hardwood		158.5			27.9			1.09			0.04			0.48
afforestation
Populus, energy		81.1			15.0			7.57			0			4.23
Populus, pulp		86.3			125.1			6.81			1.29 - 9.94			3.19
Triticum, energy		21.5			12.1			6.09			0			2.96
Triticum, food + energy		21.5			6.1			6.09			0			1.84
Triticum, food grains		42.2			0			3.04			0			0

The allocation of C to the various product pools, mean residence times and assumptions about reuse and recycling are given in Tables 1 and 2. High, medium and low represent different site indices of productivity for the forestry options

ISSN: 1750-0680