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Returning biochar to fields: A review
College of Resources and Environment, Huazhong Agricultural University.
School of Energy and Environment, City University of Hong Kong,Tat Chee Avenue, Kowloon, Hong Kong.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-0200-9960
School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology.
2017 (English)In: Agriculture, Ecosystems & Environment. Applied Soil Ecology, ISSN 0929-1393, E-ISSN 1873-0272, Vol. 116, 1-11 p.Article in journal (Refereed) Published
Abstract [en]

Biochar generated from thermochemical conversion of biomass reduces greenhouse gas emissions and is useful for improving ecological systems in agriculture. However, certain biochars function well in improving soil, and other biochars do not. Why? Because it is not clear how to prepare the best biochar for soil. There is a disconnect between biochar preparation and returning the biochar to the soil. To elucidate this relationship, this paper reviews (i) technologies for preparing biochar, (ii) how preparation conditions affect biochar properties, and (iii) the effects on soil physical and chemical properties. In addition to reducing greenhouse gas emissions, biochar improves the physicochemical and microbial properties of soil and absorbs poisonous and pernicious substances. Therefore, as biochar is produced by pyrolysis, optimizing processing conditions to improve its properties for agricultural use is a key issue explored in this article.

Place, publisher, year, edition, pages
2017. Vol. 116, 1-11 p.
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-62908DOI: 10.1016/j.apsoil.2017.03.017ISI: 000402492200001Scopus ID: 2-s2.0-85016816467OAI: oai:DiVA.org:ltu-62908DiVA: diva2:1087094
Note

Validerad; 2017; Nivå 2; 2017-04-05 (andbra)

Available from: 2017-04-05 Created: 2017-04-05 Last updated: 2017-09-21Bibliographically approved

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