Effect of temperature on biochar priming effects and its stability in soils

Fang, Yunying; Singh, Balwant; Singh, Bhupinder

doi:10.1016/j.soilbio.2014.10.006

Cited by 192 publications

(107 citation statements)

References 65 publications

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“…Aside from these methods, a very interesting technique, not usually cited in quantification studies and reviews (Glaser et al, 1998;Schmidt et al, 2001;Masiello, 2004;Simpson and Hatcher, 2004;Brodowski et al, 2005;Hammes et al, 2007;Koide et al, 2011;Wiedemeier et al, 2015), is the C stable isotopic ratio (δ 13 C) (Bird and Ascough, 2012), which is widely used in studies on biochar mineralization and priming (Hamer et al, 2004;Cross and Sohi, 2011;Keith et al, 2011;Luo et al, 2011;Fang et al, 2015;Rittl et al, 2015b), but still uncommon for pyrogenic C quantification. The application of biochar with isotopically distinct δ 13 C values of the native soil organic matter (distinct photosynthetic pathway) would provide a powerful tool, aside from tracing the fate of pyrogenic C in the environment, as reference method to study quantification and stability (e.g.…”

Section: Quantification Of Pyrogenic Cmentioning

confidence: 99%

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Novotny

Maia

Carvalho

et al. 2015

Rev. Bras. Ciênc. Solo

175

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Biochar (carbonized biomass for agricultural use) has been used worldwide as soil amendment and is a technology of particular interest for Brazil, since its "inspiration" is from the historical Terra Preta de Índios (Amazon Dark Earth), and also because Brazil is the world's largest charcoal producer, generating enormous residue quantities in form of fine charcoal and due to the availability of different residual biomasses, mainly from agroindustry (e.g., sugar-cane bagasse; wood and paper-mill wastes; residues from biofuel industries; sewage sludge etc), that can be used for biochar production, making Brazil a key actor in the international scenario in terms of biochar research and utilization). In the last decade, numerous studies on biochar have been carried out and now a vast literature, and excellent reviews, are available. The objective of this paper is therefore to deliver a critical review with some highlights on biochar research, rather than an exhaustive bibliographic review. To this end, some key points considered critical and relevant were selected and the pertinent literature "condensed", with a view to guide future research, rather than analyze trends of the past.

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Section: Quantification Of Pyrogenic Cmentioning

confidence: 99%

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Novotny

Maia

Carvalho

et al. 2015

Rev. Bras. Ciênc. Solo

175

View full text Add to dashboard Cite

show abstract

“…The anomalous behavior of biochar towards SOC mineralization primarily depends on characteristics of the biochar and soil properties (Cely et al, 2014;Singh and Cowei, 2014). In general, enhanced microbial and enzymatic activities due to the breakdown of labile organic C of biochar and the supply of nutrients from biochar result in increased SOC mineralization (Fang et al, 2015), a phenomenon commonly known as the positive priming effect. On the other hand, SOC mineralization can be suppressed by the sorption of labile organic C onto the surface or into the pore network of biochar (Lehmann et al, 2011), a phenomenon commonly known as the negative priming effect.…”

Section: Introductionmentioning

confidence: 99%

Carbon mineralization and nutrient availability in calcareous sandy soils amended with woody waste biochar

et al. 2015

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“…The stable properties of biochar also possess some instability. Nguyen [3] indicated that with the increasing of soil temperature, the loss rate of biological carbon increased, more incubation experiment showed that biochar character changes in its physical and chemical properties under different conditions [4]. The chemical and biological oxidation constantly changing the functional groups and chemical properties when biochar applied into soil [5].…”

Section: Introductionmentioning

confidence: 99%

Ageing of rice husk biochar along a freeze-thaw cycles

et al. 2016

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Abstract. In order to elucidate the aging possess of biochar, the experiment with treatment biochar with soil were performed. For accelerating aging process, freeing-thawing cycle were conducted to simulate the changing process of the physical and chemical properties of biochar and explore the roles of biochar in the changes of the soil nutrition. Aging treatment has a significant impact on the physical and chemical properties of biochar. The pH values, element composition, oxidation of the surface, absorption capacity of biochar changed in the ageing process. In the simulation test of freeze-thaw cycles, pH of biochar displayed upward trend after the first decline in 25 cycles, and then return to the initial level, indicating that the pH of biochar is not easy to change. Biochar surface oxidation occurs rapidly and significantly in the early, and then stabilized in the latter stage. Surface oxidation degree is higher than the whole. The results showed that surface oxide of biochar protect the internal particles from further oxidation. In the first 25 freeze-thaw cycles, adsorption capacity of biochar to hydroquinone changes from the 5.928 mg.g-1 to 11.73 mg.g -1 , indicating that freeze-thaw cycle treatment increase adsorption capacity of biochar.

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Effect of temperature on biochar priming effects and its stability in soils

Cited by 192 publications

References 65 publications

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Carbon mineralization and nutrient availability in calcareous sandy soils amended with woody waste biochar

Ageing of rice husk biochar along a freeze-thaw cycles

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