期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 826, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2022.153956
关键词
Biochar-based materials; Organic pollutants; Bioavailability; Soil remediation; Ecological risks
资金
- Program for the National Program for Support of Top-Notch Young Professionals of China (2014)
- National Natural Science Foundation of China [51521006, U20A20323, 51809090, 51378190]
- Hunan Provincial Science and Technology Plan Project [2016RS3026, 2017SK2243, 2018SK20410]
- Program for New Century Excellent Talents in University [NCET-13-0186]
- Natural Science Foundation of Hunan Province, China [2019JJ50077]
- Fundamental Research Funds for the Central Universities [531119200086, 531118010114, 531107050978, 541109060031]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13R17]
- Three Gorges Follow-up Research Project [2017HXXY-05]
This study summarizes the research on the effects of biochar-based materials on soil organisms in the past ten years. It discusses the impact of these materials on the bioavailability of soil organic pollutants and highlights the potential biological effects of different types of biochar-based materials on soil organisms. Possible mechanisms are presented based on the characteristics of these materials and their environmental interactions. The study also identifies the challenges and future prospects for the risk assessment of biochar-based materials.
Motivated by the unique structure and superior properties, biochar-based materials, including pristine biochar and composites of biochar with other functional materials, are considered as new generation materials for diverse multifunctional applications, which may be intentionally or unintentionally released to soil. The influencing mechanism of biochar-based material on soil organisms is a key aspect for quantifying and predicting its benefits and trade-offs. This work focuses on the effects of biochar-based materials on soil organisms within the past ten years. 206 sources are reviewed and available knowledge on biochar-based materials' impacts on soil organisms is summarized from a diverse perspective, including the pollutant bioavailability changes in soil, and potential effects of biochar-based materials on soil organisms. Herein, effects of biochar-based materials on the bioavailability of soil organic pollutants are detailed, from the perspective of plant, microorganism, and soil fauna. Potential biological effects of pristine biochar (PBC), metal/metal compounds-biochar composites (MBC), clay minerals-biochar composites (CMBC), and carbonaceous materials-biochar composites (CBC) on soil organisms are highlighted for the first time. And possible mechanisms are presented based on the different characters of biochar-based materials as well as various environmental interactions. Finally, the bottleneck and challenges of risk assessment of biochar-based materials as well as future prospects are proposed. This work not only promotes the development of risk assessment system of biochar-based materials, but broadens the strategy for the design and optimization of environmental-friendly biochar materials.
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