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Published online 3 August 2006
Published in Soil Sci Soc Am J 70:1541-1546 (2006)
DOI: 10.2136/sssaj2005.0119
© 2006 Soil Science Society of America
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Carbon Turnover and Carbon-13 Natural Abundance under Land Use Change in Semiarid Savanna Soils of La Pampa, Argentina

A. Zacha, H. Tiessena,* and E. Noellemeyerb

a Institute for Tropical Agronomy, Universität Göttingen, Grisebachstr. 6, 37077 Göttingen, Germany. H. Tiessen, current address: InterAmerican Institute for Global Change Research, c/o INPE, Ave. dos Astronautas 1758, São José dos Campos, sp. 12227-010, Brazil
b Facultad de Agronomía, Universidad Nacional de La Pampa, 6300 Santa Rosa, La Pampa, Argentina


Figure 1
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  		Fig. 1. Change of original C3-derived carbon (mg C g–1 bulk soil) over time after land use conversion from degraded (C3) land into C4pastures at Toay.

 

Figure 2
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  		Fig. 2. Sequestration of pasture-derived C4-C (mg C g–1 bulk soil) with time of pasture introduction on original C3 vegetation at Toay.

 




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