Controls and dynamics of biochar decomposition and soil microbial abundance, composition, and carbon use efficiency during long-term biochar-amended soil incubations

Jiang, Xinyu; Denef, Karolien; Stewart, Catherine E.; Cotrufo, M. Francesca

doi:10.1007/s00374-015-1047-7

Cited by 98 publications

(49 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From day 36, treatments were no longer statistically different from the control, confirming that the gas emissions had already stabilized and no longer needed to be collected ( Figure 5). The gas sampling continued for more 103 days, in order to confirm that the microbiota had already stabilized and would not have a new peak of emission, as sometimes reported by few authors [38]; [39] and [40].…”

Section: Discussionmentioning

confidence: 90%

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Novais¹,

Zenero²,

Frade³

et al. 2017

View full text Add to dashboard Cite

Increases in greenhouse gases (GHG) emissions, upon changes in land use and agricultural management, lead to a search for techniques that enhance carbon residence time in soil. Pyrolysis increases the recalcitrance of organic materials and enhances their activities as physical, chemical and biological soil conditioners. Emissions of CO 2 , CH 4 and N 2 O quantified from a sandy soil that was treated with three rates (12.5, 25 e 50 Mg•ha −1 ) of either non-pyrolysed poultry manure and sugarcane straw or biochars, pyrolysed at two contrasting temperatures (350˚C and 650˚C). Subsequently, the flux of the three gases was converted and compared in a standard unit (CO 2 eq). The added biochars, significantly reduced GHG emissions, especially CO 2 , relative to the non-pyrolysed materials. The greatest differences between applied rates of poultry manure, relative sugarcane straw, both to biochar and raw material, and the positive response to the increase of pyrolysis temperture, confirm the importance of raw material choice for biochar production, with recalcitrance being an important initial characteristic. Greater emissions occurred with intermediate rate of biochars (25 Mg•ha −1 ) amendment to the soil. These intermediate rates had higher microbial biomass, provided by an intermediate C/N ratio derived from the original soil and the biochar, promoting combined levels of labile C and oxygen availability, leading to an optimal environment for microbiota.

show abstract

Section: Discussionmentioning

confidence: 90%

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Novais¹,

Zenero²,

Frade³

et al. 2017

View full text Add to dashboard Cite

show abstract

“…However, the decrease was found to be partially buffered by large biochar addition rates suggesting that biochar, when abundant, may become a substrate for microbial activity. Only recently, a significant increase in soil microbial biomass after biochar application as measured by total PLFA abundance was reported over a 30-month incubation study (Jiang et al, 2016). However, a lack of any substantial change in the microbial biomass carbon from biochar additions to the soil was reported (Van Zwieten et al, 2009;Yoo & Kang, 2011).…”

Section: Effects Of Biochar On Microbial Biomass and Activitymentioning

confidence: 99%

“…Microbial abundance in biochar-amended soil has been investigated by various methods including total genomic DNA (Grossman et al, 2010;Jin, 2010), culture and plate counting method (Jackson, 1958;O'Neill et al, 2009), substrate-induced respiration (Zackrisson et al, 1996;Steiner et al, 2004Steiner et al, , 2009Wardle et al, 2008;Kolb et al, 2009), fumigation-extraction (Jin, 2010;Liang et al, 2010), PLFA (Gomez et al, 2014;Jiang et al, 2016), staining, and direct observation of individual biochar particles (Pietik€ ainen et al, 2000;Warnock et al, 2007;Jin, 2010). Using a PLFA study, Gomez et al (2014) demonstrated that the addition of a wood-derived fast pyrolysis biochar could positively influence the microbial abundance of temperate soils.…”

Section: Influence Of Biochar Amendment On Microbial Abundance In Soilmentioning

confidence: 99%

Polycyclic aromatic hydrocarbons and volatile organic compounds in biochar and biochar‐amended soil: a review

et al. 2016

View full text Add to dashboard Cite

Residual pollutants including polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and carbon (aceous) nanoparticles are inevitably generated during the pyrolysis of waste biomass and remain on the solid coproduct called biochar. Such pollutants could have adverse effects on the plant growth as well as microbial community in soil. Although biochar has been proposed as a ‘carbon negative strategy’ to mitigate the greenhouse gas emissions, the impacts of its application with respect to long‐term persistence and bioavailability of hazardous components are not clear. Moreover, the co‐occurrence of low molecular weight VOCs with PAHs in biochar may exert further phytotoxic effects. This review describes the basic need to unravel key mechanisms driving the storage vs. emission of these organics and the dynamics between the sorbent (biochar) and soil microbes. Moreover, there is an urgent need for standardized methods for quantitative analysis of PAHs and VOCs in biochar under environmentally relevant conditions. This review is also extended to cover current research gaps including the influence of biochar application on the short‐ and long‐term fate of PAHs and VOCs and the proper control tactics for biochar quality and associated risk.

show abstract

“…Initially, biochar was believed to persist in soil environment for tens of thousands of years, because of its aromatic chemical structure that was resistant to biological degradation (Schmidt and Noack, 2000;Singh et al, 2012). However, more and more studies recently reported some level of biochar decomposition both in field and laboratory experiments through different mechanisms (Hilscher et al, 2009;Kuzyakov et al, 2009;Zimmerman, 2010;Santos et al, 2012;Kuzyakov et al, 2014;Singh et al, 2014;Jiang et al, 2016).…”

Section: Introductionmentioning

confidence: 98%

Interactions between biochar and soil organic carbon decomposition: Effects of nitrogen and low molecular weight carbon compound addition

Jiang

Haddix

Cotrufo

2016

Soil Biology and Biochemistry

Self Cite

View full text Add to dashboard Cite

Controls and dynamics of biochar decomposition and soil microbial abundance, composition, and carbon use efficiency during long-term biochar-amended soil incubations

Cited by 98 publications

References 81 publications

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Polycyclic aromatic hydrocarbons and volatile organic compounds in biochar and biochar‐amended soil: a review

Interactions between biochar and soil organic carbon decomposition: Effects of nitrogen and low molecular weight carbon compound addition

Contact Info

Product

Resources

About