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

Equatorial Guinea

18,100

Mangrove area – year 0

340.80

C density top m of soil (Mg/ha)

99.60

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

$235

Above ground land value (US$/ha)

Years (end of)

Present value

1

2

3

20

17,973

17,847

17,722

15,727

Area of Blue Carbon (ha)

127

125

124

110

Area lost (ha) @0.7%/yr

43,179

42,575

42,277

37,518

Soil carbon exposed (Mg)

2,159

4,288

6,402

40,155

Soil carbon cumulative loss (Mg)

12,619

12,443

12,356

10,965

Biomass carbon lost (Mg)

14,778

16,730

18,757

51,120

Total C emitted (Mg)

15,018

16,966

18,992

51,328

Carbon benefit of conservation (Mg)

$4,178,314

$45,053

$50,899

$56,975

$153,984

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

$6,963,856

$75,089

$84,832

$94,958

$256,641

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

$3,111,637

$45,053

$50,899

$56,975

$153,984

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

$5,186,062

$75,089

$84,832

$94,958

$256,641

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

$50,555

$3,294

$3,375

$3,477

$5,109

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

$438,539

$30,281

$30,744

$31,410

$42,036

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

$39,006

$3,294

$3,375

$3,477

$5,109

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

$340,149

$30,281

$30,744

$31,410

$42,036

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

$3,157,693

$29,800

$59,182

$88,359

$554,256

Opportunity cost, 5%

$2,251,725

$29,800

$59,182

$88,359

$554,256

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$2.9

$0.8

$3.8

$1.0

Low cost of conservation

$2.6

$0.5

$3.4

$0.6

High cost of conservation

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