Blue Carbon Financing of Mangrove Conservation in the Abidjan Convention Region: A Feasibility Study

Sierra-Leone

95,500

Mangrove area – year 0

320.00

C density top m of soil (Mg/ha)

108.00

C density of above + below ground biomass (Mg/ha)

$226

Above ground land value (US$/ha)

Years (end of)

Present value

1

2

3

20

94,832

94,163

93,504

82,979

Area of Blue Carbon (ha)

669

659

655

581

Area lost (ha) @0.7%/yr

213,920

210,925

209,449

185,872

Soil carbon exposed (Mg)

10,696

21,242

31,715

198,938

Soil carbon cumulative loss (Mg)

72,198

71,187

70,689

62,732

Biomass carbon lost (Mg)

82,894

92,429

102,404

261,670

Total C emitted (Mg)

84,157

93,675

103,641

262,768

Carbon benefit of conservation (Mg)

$21,959,408

$252,472

$281,026

$310,922

$788,303

C value at US$ 3/tCO 2 e, 5%

$36,599,013

$420,787

$468,376

$518,203

$1,313,839

C value at US$ 5/tCO 2 e, 5%

$16,413,843

$252,472

$281,026

$310,922

$788,303

C value at US$ 3/tCO 2 e, 8%

$27,356,406

$420,787

$468,376

$518,203

$1,313,839

C value at US$ 5/tCO 2 e, 8%

$266,740

$17,381

$17,806

$18,345

$26,955

Cost to conserve ($25/ha estab., US$ 1/yr), 5%

$2,313,837

$159,772

$162,214

$165,725

$221,793

Cost to conserve ($232/ha estab., US$ 7/yr), 5%

$205,806

$17,381

$17,806

$18,345

$26,955

Cost to conserve ($25/ha estab., US$ 1/yr), 8%

$1,794,708

$159,772

$162,214

$165,725

$221,793

Cost to conserve ($232/ha estab., US$ 7/yr), 8%

$15,994,894

$150,947

$299,781

$447,574

$2,807,513

Opportunity cost, 5%

$11,405,826

$150,947

$299,781

$447,574

$2,807,513

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$15.7

$4.8

$20.3

$5.7

Low cost of conservation

$14.2

$3.2

$18.3

$3.7

High cost of conservation

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