Soil priming effects following biochar incorporation - International ...

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The absolute priming effect (or primed soil CO 2 -C) with the addition of biochar was calculated from: Primed soil CO 2 -C (µg C g -1 soil) = CO 2 -C treatment - CO 2 -C control , Eqn. 4 where CO 2 -C treatment is the non-isotopically labelled CO 2 -C evolved from biochar amended soil, CO 2 -C control is non-isotopically labelled CO 2 -C evolved from control. The priming effect of soil organic C, expressed as the % increase compared to CO 2 - C evolved from the control was calculated from: Priming effect (%) = 100 × (CO 2 -C treatment - CO 2 -C control ) / CO 2 -C control Eqn. 5
Plants possessing the C3 pathway have δ 13 C values with a mean of –27‰. Plant with C4 photosynthesis discriminate less Plant with C4 photosynthesis discriminate less against 13 CO 2 , thus have greater δ 13 C values than C3 plants, with a mean of –13‰.
Page 1 and 2: Soil priming effects following bioc
Page 3 and 4: The priming effects following subst
Page 5 and 6: Experimental design • Soil: Hoosf
Page 7 and 8: Experimental design • Soil: Hoosf
Page 9 and 10: soil organic C loss after 90 days 1
Page 11 and 12: Quantification of CO 2 evolution µ
Page 13 and 14: This loss will be more than compens
Page 15 and 16: Unpyrolyzed biomass CO 2 CO 2 CO 2
Page 17 and 18: Correlation between soil organic C
Page 19 and 20: Soil ATP after 90 days ATP nmol g-1
Page 21 and 22: Microbial colonization in pH high s
Page 23 and 24: Biochar incorporation into Biomass
Page 25 and 26: Soil acid properties K 2 SO 4 extra
Page 27 and 28: iological Soil charsphere Biochar P
Page 29 and 30: Conclusion Biochar caused short te
Page 31 and 32: The mechanisms of short term PE Cau
Page 33: The standard equation for determini
Page 37 and 38: ATP concentration of microbial biom

Soil priming effects following biochar incorporation - International ...

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