Biochar-based agricultural soil management: An application-dependent strategy for contributing to carbon neutrality. (August 2022)

• Record Type: Journal Article
• Authors: Song, Biao; Almatrafi, Eydhah; Tan, Xiaofei; Luo, Songhao; Xiong, Weiping; Zhou, Chengyun; Qin, Meng; Liu, Yang; Cheng, Min; Zeng, Guangming; Gong, Jilai
• Is Part Of: Renewable & sustainable energy reviews. Volume 164(2022)
• Publication Date: 2022-08
• Subjects: Biochar -- Agricultural soil management -- Climate change -- Carbon neutrality -- Carbon sequestration -- Greenhouse gases; GHGs Greenhouse gases -- HMs Heavy metals -- IBI International Biochar Initiative -- LCA Life cycle assessment -- SOC Soil organic carbon -- WMO World Meteorological Organization; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2022.112529
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: 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. Highlights: The non-CO2 GHGs account for the majority of carbon emission via agricultural soil. Incorporating biochar into the global carbon trading market is recommended. Using biochar to help achieve carbon neutrality is an application-dependent strategy.