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Sphagnum data and maps

SEE: Gajewski, K., A Viau, M Sawada, D Atkinson and S Wilson. 2001. Sphagnum peatland distribution in North America and Eurasia during the past 21,000 years. Global Biogeochemical Cycles 15: 297-310.

Carbon Accumulation

Here are estimates of carbon accumulation since the Last Glacial Maximum (LGM). See paper for details.

Data for Figure 7
  Total Carbon (Pg) Area supporting Sphagnum peatlands (10 exp6 km2 )
yr BP low estimate high estimate mean estimate Total North America Europe Asia

0

455

455

455

19180051

9362500

1502500

8315051

1000

212.4028

451.778

332.0904

23028418

9595000

3450000

9983418

3000

124.0548

256.6036

190.3292

21792704

9367500

2977500

9447704

5000

69.42089

142.5923

106.0066

18023776

7657500

2552500

7813776

7000

42.93291

87.83478

65.38384

16042219

6765000

2322500

6954719

9000

24.1673

49.30953

36.73842

12405689

5312500

1715000

5378189

11000

8.680431

17.93452

13.30747

6712577

2507500

1295000

2910077

13000

3.81339

8.081987

5.947689

4475051

1357500

1177500

1940051

15000

1.159368

2.407243

1.783306

1394592

545000

245000

604591.8

17000

1.311625

2.652114

1.98187

1540230

790000

82500

667729.6

19000

0.386371

0.838244

0.612307

741428.6

230000

190000

321428.6

21000

0.971705

1.943411

1.457558

1381352

782500

0

598852

Figures from the paper

Here are maps and animations depicting the development of Sphagnum peatlands during the postglacial. See paper for details.

The maps are are available as high-resolution pdf files and lower resolution gifs. The pdfs load slowly in the reader.
The animations are zipped files (exe). Opening these should launch an avi file (you will need a reader). 

Figures from paper

Animations
pdf size gif - approx 40k avi size
North America (Fig_4) (3500k) North America 

00-09ka North America (500k)
  11-21ka  
Europe (Fig_5) (1400k) Europe

00-09ka Europe (400k)
  11-21ka  

 

 

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