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atmosphere 0.03% CO 2 d 13 C  -7 ‰. plants d 13 C  -28 ‰. soil air, 1 - 5% CO 2 , d 13 C  -28 ‰. soil organic matter d 13 C  -28 ‰. 0.25 mmol 13 CO 2. Na 2 13 CO 3 + H +  Na + + 13 CO 2 + H 2 O. CHCl 3 (funigated controls only). soil (ca. 21 g)

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atmosphere

0.03% CO2

d13C  -7 ‰

plants

d13C 

-28 ‰

soil air, 1 - 5% CO2, d13C  -28 ‰

soil organic matter

d13C  -28 ‰

0.25 mmol 13CO2

Na213CO3 + H+ Na+ + 13CO2 + H2O

CHCl3 (funigated controls only)

soil (ca. 21 g)

+ farmyard manure (5 mg g-1)

Distribution of carbon originating from CO2 on different components of soil organic matter

A. Miltner, H.-H. Richnow, F.-D. Kopinke and M. Kästner

Department of Remediation Research, UFZ - Centre for Environmental Research Leipzig - Halle, Permoserstr. 15, 04318 Leipzig, Germany

U F Z C E N T R E F O R E N V I R O N M E N T A L R E S E A R C H L E I P Z I G - H A L L E

Fig. 2: concentrations (A) and d13C (B) of total fatty acids

Fig. 1: concentrations (A) and d13C (B) of phospholipid fatty acids

UFZ - CENTRE FOR ENVIRONMENTAL RESEARCH LEIPZIG-HALLE


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