Biochar stability in soil: meta‐analysis of decomposition and priming effects
Nanjing Agricultural University · University of Göttingen · +1 more institution
Abstract
Abstract The stability and decomposition of biochar are fundamental to understand its persistence in soil, its contribution to carbon (C) sequestration, and thus its role in the global C cycle. Our current knowledge about the degradability of biochar, however, is limited. Using 128 observations of biochar‐derived CO 2 from 24 studies with stable ( 13 C) and radioactive ( 14 C) carbon isotopes, we meta‐analyzed the biochar decomposition in soil and estimated its mean residence time ( MRT ). The decomposed amount of biochar increased logarithmically with experimental duration, and the decomposition rate decreased with time. The biochar decomposition rate varied significantly with experimental duration,…
Citation impact
- FWCI
- 65.01
- Percentile
- 100%
- References
- 98
Authors
3Topics & keywords
- Biochar
- Pyrolysis
- Charcoal
- Mineralization (soil science)
- Slash-and-char
- Decomposition
- Chemistry
- Environmental chemistry
- Life in Land