Opportunity costs of carbon sequestration in a forest concession in central Africa

Table 1 Opportunity cost of carbon sequestration for different alternative management scenarios in the Haut-Abanga concession

Scenario	ΔVolume	$\sum$ Credits	ΔPVT_T	$π_{C}^{*}$
	(m³ha⁻¹)	(tCO₂ha⁻¹)	(US$ ha⁻¹)	(US$/ tCO₂)
Lengthened rotation (+5 yr)	1.8	7.1	34.2	11.0
Lengthened rotation (+10 yr)	3.3	13.0	60.5	11.1
Lengthened rotation (+15 yr)	4.7	18.2	81.2	11.1
Raised cutting limits (+10 cm)	8.9	10.3	65.6	15.8
Raised cutting limits (+20 cm)	17.5	19.5	124.2	15.9
Raised cutting limits (+30 cm)	24.5	26.3	166.2	16.1
Raised cutting limits (+40 cm)	29.5	30.7	193.6	16.2

The break-even price of carbon sequestration $π_{C}^{*}$ is computed for a contribution margin of US$25 m ⁻³ for all commercial species. $\sum$ Credits is the sum of carbon credits. Δ Volume is the total reduction in harvested wood volume. Δ PVT_T is the loss in the net present value of timber.

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