articleEnvironmental Science & TechnologyNov 3, 2020Closed access

Biochar Aging: Mechanisms, Physicochemical Changes, Assessment, And Implications for Field Applications

Tsinghua University · University of Wuppertal · +4 more institutions

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Abstract

Biochar has triggered a black gold rush in environmental studies as a carbon-rich material with well-developed porous structure and tunable functionality. While much attention has been placed on its apparent ability to store carbon in the ground, immobilize soil pollutants, and improve soil fertility, its temporally evolving in situ performance in these roles must not be overlooked. After field application, various environmental factors, such as temperature variations, precipitation events and microbial activities, can lead to its fragmentation, dissolution, and oxidation, thus causing drastic changes to the physicochemical properties. Direct monitoring of biochar-amended soils can provide good evidence of its…

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Authors

7

Topics & keywords

Keywords
  • Biochar
  • Environmental science
  • Carbon sequestration
  • Amendment
  • Soil water
  • Leaching (pedology)
  • Biochemical engineering
  • Waste management
UN Sustainable Development Goals
  • Life in Land
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