Luo et al. (2023): Carbon Sequestration Strategies in Soil Using Biochar: Advances, Challenges, and Opportunities
Lei Luo, Jiaxiao Wang, Jitao Lv, Zhengang Liu, Tianran Sun, Yi Yang, Yong-Guan Zhu IN: Environ. Sci. Technol. https://doi.org/10.1021/acs.est.3c02620
The authors identify five key issues closely related to the application of biochar for C sequestration in soil and review its outstanding advances. Specifically, the terms use of biochar, pyrochar, and hydrochar, the stability of biochar in soil, the effect of biochar on the flux and speciation changes of C in soil, the emission of nitrogen-containing greenhouse gases induced by biochar production and soil application, and the application barriers of biochar in soil are expounded. By elaborating on these critical issues, the authors discuss the challenges and knowledge gaps that hinder our understanding and application of biochar for C sequestration in soil and provide outlooks for future research directions.