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

Liberia

18,900

Mangrove area – year 0

322.20

C density top m of soil (Mg/ha)

124.10

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

18,768

18,635

18,505

16,422

Area of Blue Carbon (ha)

132

130

130

115

Area lost (ha) @0.7%/yr

42,627

42,030

41,736

37,038

Soil carbon exposed (Mg)

2,131

4,233

6,320

39,642

Soil carbon cumulative loss (Mg)

16,418

16,189

16,075

14,266

Biomass carbon lost (Mg)

18,550

20,421

22,395

53,907

Total C emitted (Mg)

18,800

20,668

22,640

54,125

Carbon benefit of conservation (Mg)

$4,637,770

$56,399

$62,004

$67,919

$162,374

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

$7,729,617

$93,999

$103,340

$113,199

$270,623

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

$3,478,414

$56,399

$62,004

$67,919

$162,374

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

$5,797,357

$93,999

$103,340

$113,199

$270,623

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

$52,789

$3,440

$3,524

$3,631

$5,335

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

$457,922

$31,620

$32,103

$32,798

$43,894

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

$40,730

$3,440

$3,524

$3,631

$5,335

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

$355,183

$31,620

$32,103

$32,798

$43,894

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

$3,165,482

$29,873

$59,328

$88,577

$555,623

Opportunity cost, 5%

$2,257,279

$29,873

$59,328

$88,577

$555,623

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$3.5

$1.2

$4.5

$1.4

Low cost of conservation

$3.2

$0.9

$4.1

$1.0

High cost of conservation

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