Biochar implications for sustainable agriculture and environment: A review

Semida, Wael M.; Beheiry, Hamada R.; Sétamou, Mamoudou; Simpson, Catherine; El–Mageed, Taia A. Abd; Rady, Mostafa M.; Nelson, Shad D.

doi:10.1016/j.sajb.2019.11.015

Cited by 122 publications

(44 citation statements)

References 177 publications

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“…Although the literature shows a positive impact in many occasions, in terms of reduced emissions, Semida et al present mixed results, where the application of biochar has positive as well as negative effects on CH 4 and N 2 O emissions. This is specific to the cropping system as well as the type of biochar utilized and its processing conditions (Semida et al 2019). Xiao et al also present conflicting results regarding biochar application, which is very specific to the condition of the soils amended with biochar (Xiao et al 2019).…”

Section: Biocharmentioning

confidence: 99%

“…This is based on the type of biochar, the quantity applied and the specific crops under cultivation and sometimes management practices. The evidence is mixed, and therefore careful analysis should be carried out to successfully match biochar with appropriate carbon sinks (Oni et al 2020;Semida et al 2019;El-Naggar et al 2019;Maraseni 2010;Purakayastha et al 2019;Xu et al 2019).…”

Section: Biocharmentioning

confidence: 99%

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Strategies for mitigation of climate change: a review

et al. 2020

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Climate change is defined as the shift in climate patterns mainly caused by greenhouse gas emissions from natural systems and human activities. So far, anthropogenic activities have caused about 1.0 °C of global warming above the pre-industrial level and this is likely to reach 1.5 °C between 2030 and 2052 if the current emission rates persist. In 2018, the world encountered 315 cases of natural disasters which are mainly related to the climate. Approximately 68.5 million people were affected, and economic losses amounted to $131.7 billion, of which storms, floods, wildfires and droughts accounted for approximately 93%. Economic losses attributed to wildfires in 2018 alone are almost equal to the collective losses from wildfires incurred over the past decade, which is quite alarming. Furthermore, food, water, health, ecosystem, human habitat and infrastructure have been identified as the most vulnerable sectors under climate attack. In 2015, the Paris agreement was introduced with the main objective of limiting global temperature increase to 2 °C by 2100 and pursuing efforts to limit the increase to 1.5 °C. This article reviews the main strategies for climate change abatement, namely conventional mitigation, negative emissions and radiative forcing geoengineering. Conventional mitigation technologies focus on reducing fossil-based CO2 emissions. Negative emissions technologies are aiming to capture and sequester atmospheric carbon to reduce carbon dioxide levels. Finally, geoengineering techniques of radiative forcing alter the earth’s radiative energy budget to stabilize or reduce global temperatures. It is evident that conventional mitigation efforts alone are not sufficient to meet the targets stipulated by the Paris agreement; therefore, the utilization of alternative routes appears inevitable. While various technologies presented may still be at an early stage of development, biogenic-based sequestration techniques are to a certain extent mature and can be deployed immediately.

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Section: Biocharmentioning

confidence: 99%

Section: Biocharmentioning

confidence: 99%

Strategies for mitigation of climate change: a review

et al. 2020

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“…In theory, the right application of biochar can significantly influence crop productivity and water and nutrient use efficiency. Besides, it has also been reported that biochar application can play an important role in reducing greenhouse gas emissions such as CO 2 , CH 4 , and N 2 O from soils (Fawzy et al 2020), although the results reported are mixed (Semida et al 2019;Xiao et al 2019). Moreover, the sorption capabilities of biochar present an opportunity for it to be utilized for soil remediation (Oni et al 2019;Xu et al 2019).…”

Section: Agricultural and Forest Soilsmentioning

confidence: 99%

Industrial biochar systems for atmospheric carbon removal: a review

et al. 2021

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In the context of climate change, there is an urgent need for rapid and efficient methods to capture and sequester carbon from the atmosphere. For instance, production, use and storage of biochar are highly carbon negative, resulting in an estimated sequestration of 0.3–2 Gt CO2 year−1 by 2050. Yet, biochar production requires more knowledge on feedstocks, thermochemical conversion and end applications. Herein, we review the design and development of biochar systems, and we investigate the carbon removal industry. Carbon removal efforts are currently promoted via the voluntary market. The major commercialized technologies for offering atmospheric carbon removal are forestation, direct air carbon capture utilization and storage, soil carbon sequestration, wooden building elements and biochar, with corresponding fees ranging from 10 to 895 GBP (British pounds) per ton CO2. Biochar fees range from 52 to 131 GBP per ton CO2, which indicates that biochar production is a realistic strategy that can be deployed at large scale. Carbon removal services via biochar are currently offered through robust marketplaces that require extensive certification, verification and monitoring, which adds an element of credibility and authenticity. Biochar eligibility is highly dependent on the type of feedstock utilized and processing conditions employed. Process optimization is imperative to produce an end product that meets application-specific requirements, environmental regulations and achieve ultimate stability for carbon sequestration purposes.

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“…Advances in biochar research shows that biochar application as a soil amendment can significantly change soil physicochemical and biological properties 6 . Some of the changes can lead to increasing crop growth and yield 7 , for example by biochar-induced increases of water holding capacity 2 , topsoil nutrient availability and retention 8 and increased topsoil organic matter contents 9 .…”

Section: Introductionmentioning

confidence: 99%

“…Only a small number of studies have examined in-planta responses to biochar when faced with environmental pressures 6 , 24 , 25 that are not soil toxins. Under both sufficient and drought water conditions, Chenopodium quinoa grew significantly better in biochar treatments 26 .…”

Section: Introductionmentioning

confidence: 99%

Distinctive in-planta acclimation responses to basal growth and acute heat stress were induced in Arabidopsis by cattle manure biochar

Kumar

Friedman

Tsechansky

et al. 2021

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In-planta mechanisms of biochar (BC)-mediated improved growth were evaluated by examining oxidative stress, metabolic, and hormonal changes of Arabidopsis wild-type plants under basal or acute heat stress (–HS/ + HS) conditions with or without BC (+ BC/–BC). The oxidative stress was evaluated by using Arabidopsis expressing redox-sensitive green fluorescent protein in the plastids (pla-roGFP2). Fresh biomass and inflorescence height were greater in + BC(‒HS) plants than in the –BC(‒HS) plants, despite similar leaf nutrient levels, photosystem II (PSII) maximal efficiencies and similar oxidative poise. Endogenous levels of jasmonic and abscisic acids were higher in the + BC(‒HS) treatment, suggesting their role in growth improvement. HS in ‒BC plants caused reductions in inflorescence height and PSII maximum quantum yield, as well as significant oxidative stress symptoms manifested by increased lipid peroxidation, greater chloroplast redox poise (oxidized form of roGFP), increased expression of DNAJ heat shock proteins and Zn-finger genes, and reduced expression of glutathione-S-transferase gene in addition to higher abscisic acid and salicylic acid levels. Oxidative stress symptoms were significantly reduced by BC. Results suggest that growth improvements by BC occurring under basal and HS conditions are induced by acclimation mechanisms to ‘microstresses’ associated with basal growth and to oxidative stress of HS, respectively.

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Biochar implications for sustainable agriculture and environment: A review

Cited by 122 publications

References 177 publications

Strategies for mitigation of climate change: a review

Strategies for mitigation of climate change: a review

Industrial biochar systems for atmospheric carbon removal: a review

Distinctive in-planta acclimation responses to basal growth and acute heat stress were induced in Arabidopsis by cattle manure biochar

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