Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2024384 | Soil Biology and Biochemistry | 2015 | 11 Pages |
Abstract
We showed that biochar induced a significant negative priming of SOC in the presence of growing plants but no net priming was observed in the unplanted soil. We also demonstrated the importance of experimental timeframe in capturing the transient nature of biochar-induced priming, from positive (day 0-62) to negative (day 62-388). The presence/absence of plants had no impact on biochar-C mineralisation in this ferralsol during the measurement period. Based on a two-pool exponential model, the mean residence time (MRT) of biochar varied from 351 to 449 years in the intensive pasture system to 415-484 years in the unplanted soils.
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Agricultural and Biological Sciences
Soil Science
Authors
Zhe (Han) Weng, Lukas Van Zwieten, Bhupinder Pal Singh, Stephen Kimber, Stephen Morris, Annette Cowie, Lynne M. Macdonald,