G2TT
来源类型Articles
规范类型论文
DOI10.3846/16486897.2017.1319375
ISSN1648-6897
Biochar as a tool to reduce the agricultural greenhouse-gas burden – knowns, unknowns and future research needs
Pham, T.T.; Di Gregorio, M.; Brockhaus, M.
发表日期2017
出处Journal of Environmental Engineering and Landscape Management 25(2): 114-139
出版年2017
语种英语
摘要

Agriculture and land use change has significantly increased atmospheric emissions of the non-CO2 green-house gases (GHG) nitrous oxide (N2O) and methane (CH4). Since human nutritional and bioenergy needs continue to increase, at a shrinking global land area for production, novel land management strategies are required that reduce the GHG footprint per unit of yield. Here we review the potential of biochar to reduce N2O and CH4 emissions from agricultural practices including potential mechanisms behind observed effects. Furthermore, we investigate alternative uses of biochar in agricultural land management that may significantly reduce the GHG-emissions-per-unit-of-product footprint, such as (i) pyrolysis of manures as hygienic alternative to direct soil application, (ii) using biochar as fertilizer carrier matrix for underfoot fertilization, biochar use (iii) as composting additive or (iv) as feed additive in animal husbandry or for manure treatment. We conclude that the largest future research needs lay in conducting life-cycle GHG assessments when using biochar as an on-farm management tool for nutrient-rich biomass waste streams.

主题greenhouse gases ; nitrous oxide ; methane ; nitrate ; soil analysis ; soil chemistry
URLhttps://www.cifor.org/library/6533/
来源智库Center for International Forestry Research (Indonesia)
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资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/93662
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Pham, T.T.,Di Gregorio, M.,Brockhaus, M.. Biochar as a tool to reduce the agricultural greenhouse-gas burden – knowns, unknowns and future research needs. 2017.
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