ateam - Potsdam Institute for Climate Impact Research
ateam - Potsdam Institute for Climate Impact Research
ateam - Potsdam Institute for Climate Impact Research
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ATEAM final report Section 5 and 6 (2001-2004) 101<br />
Mean soil C stock to 30cm (t C ha-1) - excluding<br />
highly organic soils<br />
Mean soil C stock (t C ha-1)<br />
100<br />
95<br />
90<br />
85<br />
80<br />
75<br />
70<br />
65<br />
60<br />
55<br />
50<br />
1<br />
12<br />
23<br />
34<br />
45<br />
56<br />
67<br />
78<br />
89<br />
100<br />
111<br />
122<br />
Years after 1900<br />
133<br />
144<br />
A1FI<br />
155<br />
166<br />
B1<br />
177<br />
A2<br />
188<br />
B2<br />
199<br />
Figure 8. Mean soil organic carbon stock in crop- and grasslands during 21 st C from HadCM3 under 4<br />
different climate scenarios.<br />
Mean soil C stock (t C ha-1)<br />
100<br />
95<br />
90<br />
85<br />
80<br />
75<br />
70<br />
65<br />
60<br />
55<br />
50<br />
B1<br />
A2<br />
B2<br />
CGCM<br />
HadCM3<br />
2000<br />
1<br />
A1FI<br />
One climate model,<br />
four emission trajectories<br />
PCM<br />
CSIRO2<br />
One emission trajectory,<br />
four climate models<br />
2020<br />
2050<br />
2080<br />
2000<br />
2020<br />
2050<br />
2080<br />
Figure 9. Comparison of the variation in mean soil organic carbon stocks in crop- and grasslands (t C<br />
ha -1 to 30 cm depth, excluding highly organic soils) between different emission scenarios (A1f, A2, B1,<br />
B2) with the variation between different GCMs (PCM, CGCM2, CSIRO2, HadCM3).
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