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<p>Life Cycle Assessment (LCA) is a vital tool for assessing the environmental impact of biochar throughout its entire life. This study presents a comprehensive bibliometric analysis of global researches on the LCA of biochar conducted between 2015 and 2025, based on 512 publications retrieved from the Web of Science Core Collection. Bibliometric analysis tools, including VOSviewer and Bibliometrix, were applied to map patterns of scientific collaboration, authorship, institutional contributions, and global thematic trends. Results show a consistent growth in scientific output, with the number of articles published in the Journal of Cleaner Production (72), Science of the Total Environment (29), and Renewable &amp; Sustainable Energy Reviews (23). China, the USA, and India are the leading countries in publication number of 493,197 and 149 articles, respectively. Among authors Siming You, Yong Sik Ok, and Wei-Hsin Chen demonstrate strong scientific influence with publication number of 17, 14, and 12, respectively. Keyword and thematic analyses reveal a clear transition from early studies primarily focused on biochar soil amendment toward more advanced themes, including carbon sequestration, carbon footprint, and climate change mitigation. Despite various system boundaries, and impact categories within LCA studies, biochar shows the carbon negativity impact especially in the soil application. The integration of LCA with techno-economic analysis (TEA) is the emerging area that estimates full environmental and economic benefit of waste valorization and carbon credit value of biochar. Overall, this review identifies major research hotspots and emerging trends, offering a comprehensive knowledge map for future researchers in the field.</p>

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Life Cycle Assessment of Biochar: A Bibliometric Analysis of Trends and Future Perspectives

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Betelhem Fetene Admas,
  • Lívia Christina de Araújo Silva Moura,
  • Temesgen Gashaw Tarkegn,
  • Daniel Valadão Silva,
  • Rafael Leandro Fernandes Melo,
  • Frederico Ribeiro do Carmo

摘要

Life Cycle Assessment (LCA) is a vital tool for assessing the environmental impact of biochar throughout its entire life. This study presents a comprehensive bibliometric analysis of global researches on the LCA of biochar conducted between 2015 and 2025, based on 512 publications retrieved from the Web of Science Core Collection. Bibliometric analysis tools, including VOSviewer and Bibliometrix, were applied to map patterns of scientific collaboration, authorship, institutional contributions, and global thematic trends. Results show a consistent growth in scientific output, with the number of articles published in the Journal of Cleaner Production (72), Science of the Total Environment (29), and Renewable & Sustainable Energy Reviews (23). China, the USA, and India are the leading countries in publication number of 493,197 and 149 articles, respectively. Among authors Siming You, Yong Sik Ok, and Wei-Hsin Chen demonstrate strong scientific influence with publication number of 17, 14, and 12, respectively. Keyword and thematic analyses reveal a clear transition from early studies primarily focused on biochar soil amendment toward more advanced themes, including carbon sequestration, carbon footprint, and climate change mitigation. Despite various system boundaries, and impact categories within LCA studies, biochar shows the carbon negativity impact especially in the soil application. The integration of LCA with techno-economic analysis (TEA) is the emerging area that estimates full environmental and economic benefit of waste valorization and carbon credit value of biochar. Overall, this review identifies major research hotspots and emerging trends, offering a comprehensive knowledge map for future researchers in the field.