How biochar works, and when it doesn't: A review of mechanisms controlling soil and plant responses to biochar

GCB Bioenergy, Journal Year: 2021, Volume and Issue: 13(11), P. 1731 - 1764

Published: July 27, 2021

Abstract We synthesized 20 years of research to explain the interrelated processes that determine soil and plant responses biochar. The properties biochar its effects within agricultural ecosystems largely depend on feedstock pyrolysis conditions. describe three stages reactions in soil: dissolution (1–3 weeks); reactive surface development (1–6 months); aging (beyond 6 months). As ages, it is incorporated into aggregates, protecting carbon promoting stabilization rhizodeposits microbial products. Biochar persists for hundreds thousands years. By increasing pH, porosity, water availability, biochars can create favorable conditions root functions. Biochars catalyze biotic abiotic reactions, particularly rhizosphere, increase nutrient supply uptake by plants, reduce phytotoxins, stimulate development, resilience disease environmental stressors. Meta‐analyses found that, average, P availability a factor 4.6; decrease tissue concentration heavy metals 17%–39%; build organic through negative priming 3.8% (range −21% +20%); non‐CO 2 greenhouse gas emissions from 12%–50%. show average crop yield increases 10%–42% with addition, greatest low‐nutrient P‐sorbing acidic soils (common tropics), sandy drylands due retention holding capacity. Studies report wide range diversity contexts which have been applied. Crop yields strongly if site‐specific constraints limitations are mitigated appropriate formulations. be tailored address site selection, modifying conditions, pre‐ or post‐production treatments, co‐application mineral fertilizers. demonstrate how, when used wisely, mitigates climate change supports food security circular economy.

Language: Английский

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Environmental fate, toxicity and risk management strategies of nanoplastics in the environment: Current status and future perspectives

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 401, P. 123415 - 123415

Published: July 8, 2020

Language: Английский

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A critical review on various remediation approaches for heavy metal contaminants removal from contaminated soils

Chemosphere, Journal Year: 2021, Volume and Issue: 287, P. 132369 - 132369

Published: Sept. 27, 2021

Language: Английский

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Global soil pollution by toxic elements: Current status and future perspectives on the risk assessment and remediation strategies – A review

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 417, P. 126039 - 126039

Published: May 17, 2021

Language: Английский

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Agriculture supply chain risks and COVID-19: mitigation strategies and implications for the practitioners

International Journal of Logistics Research and Applications, Journal Year: 2020, Volume and Issue: 27(11), P. 2351 - 2377

Published: Oct. 8, 2020

The agricultural supply chains (ASCs) are exposed to unprecedented risks following COVID-19. It is necessary investigate the impact of and create resilient ASC organisations. In this study, we have identified assessed caused by disruptions. These threats were using Fuzzy Linguistic Quantifier Order Weighted Aggregation (FLQ-OWA). findings reveal that risks, demand financial logistics infrastructure management operational, policy regulation, biological environmental a significant in depending upon organisations scope scale. Various strategies such as adoption industry 4.0 technologies, chain collaboration shared responsibility for sustainable future. Theoretical managerial implications provided based on outcomes study.

Language: Английский

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Prediction of Soil Heavy Metal Immobilization by Biochar Using Machine Learning

Environmental Science & Technology, Journal Year: 2022, Volume and Issue: 56(7), P. 4187 - 4198

Published: March 15, 2022

Biochar application is a promising strategy for the remediation of contaminated soil, while ensuring sustainable waste management. heavy metal (HM)-contaminated soil primarily depends on properties biochar, and HM. The optimum conditions HM immobilization in biochar-amended soils are site-specific vary among studies. Therefore, generalized approach to predict efficiency required. This study employs machine learning (ML) approaches biochar soils. nitrogen content (0.3–25.9%) rate (0.5–10%) were two most significant features affecting immobilization. Causal analysis showed that empirical categories efficiency, order importance, > experimental properties. this presents new insights into effects can help determine enhanced

Language: Английский

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Environmental impacts and remediation of dye-containing wastewater

Nature Reviews Earth & Environment, Journal Year: 2023, Volume and Issue: 4(11), P. 785 - 803

Published: Oct. 26, 2023

Language: Английский

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Vegetation uptake of mercury and impacts on global cycling

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(4), P. 269 - 284

Published: March 16, 2021

Language: Английский

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A critical review on performance indicators for evaluating soil biota and soil health of biochar-amended soils

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 414, P. 125378 - 125378

Published: Feb. 18, 2021

Language: Английский

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A review of green remediation strategies for heavy metal contaminated soil

Soil Use and Management, Journal Year: 2021, Volume and Issue: 37(4), P. 936 - 963

Published: March 8, 2021

Abstract Heavy metals and metalloids can accumulate in soil, with potentially toxic effects to human health ecosystems, threatening the sustainable use management of soil resources. Although a number remediation technologies, such as Solidification/Stabilization (S/S), washing, electrokinetic chemical oxidation/reduction be applied for immobilization, removal or detoxification heavy environmental, social economic impacts associated these conventional approaches hinder their overall sustainability. More attempts have been made maximize ‘net environmental benefit’ various ways, including recovering resources, embracing nature‐based solutions (NBS), saving energy emergence development ‘green remediation’ (GSR) movement. This review critically discusses green strategies, novel amendments being utilized approaches. Iron‐based are most promising candidates due highest stabilization performances both oxyanions metallic cations well relatively low disturbance soil. In comparison, waste‐derived materials suffer from risks contaminant release long run, reducing sustainability despite costs. It has found that phytoremediation amendment‐based S/S typically ‘greenest’ but wise decisions should on basis case‐specific assessment results. Finally, it is proposed integration several techniques may synergistic effect efficiency.

Language: Английский

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