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

Democratic Republic of the Congo

18,300

Mangrove area – year 0

321.60

C density top m of soil (Mg/ha)

–

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

$38

Above ground land value (US$/ha)

Years (end of)

Present value

1

2

3

20

18,172

18,044

17,917

15,901

Area of Blue Carbon (ha)

128

126

125

111

Area lost (ha) @0.7%/yr

41,197

40,620

40,336

35,796

Soil carbon exposed (Mg)

2,060

4,091

6,108

38,312

Soil carbon cumulative loss (Mg)

0

0

0

0

Biomass carbon lost (Mg)

2,060

4,091

6,108

38,312

Total C emitted (Mg)

2,302

4,330

6,345

38,522

Carbon benefit of conservation (Mg)

$2,434,383

$6,906

$12,989

$19,034

$115,566

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

$4,057,305

$11,510

$21,648

$31,723

$192,610

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

$1,738,426

$6,906

$12,989

$19,034

$115,566

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

$2,897,376

$11,510

$21,648

$31,723

$192,610

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

$51,113

$3,331

$3,412

$3,515

$5,165

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

$443,384

$30,616

$31,084

$31,757

$42,501

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

$39,437

$3,331

$3,412

$3,515

$5,165

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

$343,907

$30,616

$31,084

$31,757

$42,501

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

$509,022

$4,804

$9,540

$14,244

$89,346

Opportunity cost, 5%

$362,979

$4,804

$9,540

$14,244

$89,346

Opportunity cost, 8%

High carbon price

Low carbon price

Net Benefit of Conservation (million US$)

8%

8%

5%

5%

$2.5

$1.3

$3.5

$1.9

Low cost of conservation

$2.2

$1.0

$3.1

$1.5

High cost of conservation

58