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

Guinea

188,900

Mangrove area – year 0

317.50

C density top m of soil (Mg/ha)

115.70

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

187,578

186,255

184,952

164,133

Area of Blue Carbon (ha)

1,322

1,304

1,295

1,149

Area lost (ha) @0.7%/yr

419,830

413,953

411,055

364,785

Soil carbon exposed (Mg)

20,992

41,689

62,242

390,427

Soil carbon cumulative loss (Mg)

152,990

150,848

149,792

132,931

Biomass carbon lost (Mg)

173,982

192,537

212,034

523,358

Total C emitted (Mg)

176,481

195,002

214,481

525,530

Carbon benefit of conservation (Mg)

$44,557,142

$529,442

$585,005

$643,443

$1,576,590

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

$74,261,904

$882,404

$975,008

$1,072,406

$2,627,649

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

$33,370,887

$529,442

$585,005

$643,443

$1,576,590

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

$55,618,144

$882,404

$975,008

$1,072,406

$2,627,649

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

$527,614

$34,380

$35,221

$36,287

$53,317

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

$4,576,793

$316,030

$320,861

$327,807

$438,709

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

$407,086

$34,380

$35,221

$36,287

$53,317

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

$3,549,951

$316,030

$320,861

$327,807

$438,709

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

$31,666,092

$298,840

$593,496

$886,089

$5,558,208

Opportunity cost, 5%

$22,580,825

$298,840

$593,496

$886,089

$5,558,208

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$32.6

$10.4

$42.1

$12.4

Low cost of conservation

$29.5

$7.2

$38.0

$8.3

High cost of conservation

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