Journal
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 164, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2022.112529
Keywords
Biochar; Agricultural soil management; Climate change; Carbon neutrality; Carbon sequestration; Greenhouse gases
Funding
- National Natural Science Foundation of China [U20A20323, 52100180, 51521006, 51909084, 51909085]
- China National Postdoctoral Program for Innovative Talents [BX20200119]
- China Postdoctoral Science Foundation [2021M690961]
- Hunan Provincial Natural Science Foundation of China [2021JJ40087]
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Biochar has gained attention as an integrated solution for agricultural waste recycling, soil improvement, carbon sequestration, and greenhouse gas reduction. However, the environmental benefits of biochar are hindered by its limited use in soil management, due to a lack of understanding and promotion. This review article discusses biochar applications in agricultural soil systems, focusing on carbon-neutral strategies and the importance of effective agricultural management for carbon sequestration.
Biochar has received increasing attention in agricultural and environmental fields as an integrated solution to agricultural waste recycling, soil amendment, carbon sequestration, and greenhouse gas (GHG) reduction. However, obtaining the environmental benefits of biochar is limited by an inadequate number of soil applications. Currently, the willingness to use biochar in soil management is relatively low, which results from the insufficient understanding and promotion of the roles of biochar in soil management and climate change mitigation. This review article presents biochar applications based on carbon-neutral strategies in agricultural soil systems. The primary roles of biochar in soil improvement and remediation are discussed and the main soil application methods are introduced. The focus of this article is on biochar-based soil management strategies for contributing to carbon neutrality. Carbon sequestration using biochar is an application-dependent strategy, as the key to obtaining this ecological benefit is to store biochar products in soil via effective agricultural management. This article offers insights into biochar-based soil management strategies and their contribution to carbon neutrality in agricultural soil systems, with recommendations for appropriate government involvement in promoting biochar-based soil management and for incorporating biochar into the carbon trading market.
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