Table 1 Mean ± SD and median aboveground and 1 m top soil OC stocks for mangrove, seagrass, and saltmarsh in the Southwestern Atlantic.

From: Vegetated coastal ecosystems in the Southwestern Atlantic Ocean are an unexploited opportunity for climate change mitigation

  

Stock (Mg C ha−1)

Stock (Tg C)

 

Area (Mha)

N plots/cores

Mean

SD

Median

 

Mangrove

      

 Aboveground

1.20*

146

72

50

58

112

 Soil

 

198

259

151

215

225

 Total

  

331

  

337

Seagrass

      

 Aboveground

0.073*

275

0.32

0.49

0.13

0.04

 Soil

 

104

91

82

69

12.3

 Total

  

91.3

  

12.3

Saltmarsh

      

 Aboveground

0.176*

227

7.8

27

1.6

0.74

 Soil

 

293

270**

304

294

53.8

 Total

  

278

  

54.5***

 Total SWA

1.45

 

700

  

404***

  1. *See methods section for area estimation; **including the Falklands/Malvinas ecoregion the values are 372 ± 47 Mg C ha-1, ***stocks including the Falklands/Malvinas ecoregion.
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