ALN logo; link to Arid Lands Newsletter Home page No. 49, May/June 2001
Linkages between Climate Change and Desertification: Tschakert

Fig. 4: Total carbon in the soil, Old Peanut Basin, Senegal

graph showing stable carbon levels until about 1850, strongly decreasing levels from then to the present, and 4 possible future scenarios.
Source: Tschakert 2000

Scenario 1:
groundnuts/millet/fallow
fertilizer + manure + leucaena green manure, some pruning every 3rd year

Scenario 2:
groundnuts/millet
 fertilizer + manure

Scenario 3:
groundnuts/millet/millet
no fertilizer, no manure
clearcut every 3rd year

Scenario 4:
groundnuts/millet
no fertilizer, no manure
fire + pruning every 3rd year

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