Role of Biochar in Carbon Sequestration and Greenhouse Gas Mitigation

Gupta, Dipak Kumar; Gupta, Chandan Kumar; Dubey, Rachana; Fagodiya, Ram Kishor; Sharma, Gulshan; Keerthika, A.; mohamed, M.B. Noor; Dev, Rahul; Shukla, Ashutosh K.

doi:10.1007/978-3-030-40997-5_7

Cited by 32 publications

(19 citation statements)

References 65 publications

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“…Biochar can store carbon (C) in the soil for a much longer period compared to that of unpyrolysed biomass (Gupta et al 2020). Application of biochar in soil has been reported to enhance several characteristics of soil such as electrical conductivity (EC), pH, cation exchange capacity (CEC), nutrient level, porosity, bulk density, and microbial community structures (Dai et al 2020;Zeeshan et al 2020;El-Naggar et al 2018;Sheng and Zhu 2018).…”

Section: Introductionmentioning

confidence: 99%

Biochar amendments and its impact on soil biota for sustainable agriculture

Pathy

Ray

Balasubramanian

2020

Biochar

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Beneficial microbes in soil biota are known to enhance plant growth by stimulating the nutrient supply and by devising certain mechanisms to cope up with the biotic (diseases) or abiotic (salinity, drought, and pollution) stresses. Owing to their effectiveness and sustainability concerns, the application of microbes in the agricultural sector has seen a positive surge recently. Biochar has been commended as an exemplary carrier material for beneficial microbes in the soil ecosystem. Biochar is generally produced from the waste biomasses, which not only resolve the management crisis of agricultural wastes but also render many benefits such as enhancement of soil properties, alteration of nutritional dynamics, removal of pollutants, and in the stimulation of beneficial microbial diversity in soil. The strategic application of biochar in agricultural land could help provide agronomic, economic, and environmental benefits. Since certain risks are associated with the application of biochar, attention needs to be paid while preferring for soil amendments. This present review focused on highlighting the role of microbes in plant growth. The influence of biochar on soil biota along with its detailed mechanisms was discussed further to delineate the scope of biochar in soil amendments. Further, the risks associated with the biochar amendments and the future perspectives in this research arena were highlighted.

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Section: Introductionmentioning

confidence: 99%

Biochar amendments and its impact on soil biota for sustainable agriculture

Pathy

Ray

Balasubramanian

2020

Biochar

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“…Soil incorporation of biochar sequesters C and improves soil properties [ 41 , 193 , 194 ], involving physical, chemical and biochemical changes ( Figure 3 ), influencing N 2 O production [ 195 ]. The application of biochar can mitigate GHGs emissions from soils [ 196 ]. Because of slow degradation, biochar is considered as the best option for long-term carbon seizure in soils [ 197 ].…”

Section: Management Options To Mitigate N 2 O Emis...mentioning

confidence: 99%

Management Strategies to Mitigate N2O Emissions in Agriculture

Hassan

Aamer

Mahmood

et al. 2022

Life

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The concentration of greenhouse gases (GHGs) in the atmosphere has been increasing since the beginning of the industrial revolution. Nitrous oxide (N2O) is one of the mightiest GHGs, and agriculture is one of the main sources of N2O emissions. In this paper, we reviewed the mechanisms triggering N2O emissions and the role of agricultural practices in their mitigation. The amount of N2O produced from the soil through the combined processes of nitrification and denitrification is profoundly influenced by temperature, moisture, carbon, nitrogen and oxygen contents. These factors can be manipulated to a significant extent through field management practices, influencing N2O emission. The relationships between N2O occurrence and factors regulating it are an important premise for devising mitigation strategies. Here, we evaluated various options in the literature and found that N2O emissions can be effectively reduced by intervening on time and through the method of N supply (30–40%, with peaks up to 80%), tillage and irrigation practices (both in non-univocal way), use of amendments, such as biochar and lime (up to 80%), use of slow-release fertilizers and/or nitrification inhibitors (up to 50%), plant treatment with arbuscular mycorrhizal fungi (up to 75%), appropriate crop rotations and schemes (up to 50%), and integrated nutrient management (in a non-univocal way). In conclusion, acting on N supply (fertilizer type, dose, time, method, etc.) is the most straightforward way to achieve significant N2O reductions without compromising crop yields. However, tuning the rest of crop management (tillage, irrigation, rotation, etc.) to principles of good agricultural practices is also advisable, as it can fetch significant N2O abatement vs. the risk of unexpected rise, which can be incurred by unwary management.

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“…It has also been suggested that carbon retention can be much greater when soil carbon stocks increase (Ding et al, 2018;Ventura et al, 2019). However, some studies have found that many of the practices used to sequester carbon in the soil are often offset by increased greenhouse gas emissions (Shen et al, 2014;Zhang et al, 2019) and that soils show a low potential for carbon accumulation (Smith, 2016;Sharma, 2018;Gupta et al, 2020). However, among the possible strategies to remove CO 2 from the atmosphere, biochar stands out in this area and currently represents the most promising alternative.…”

Section: Biochar In Climate Change Mitigationmentioning

confidence: 99%

“…That is why biochar has managed to position itself as a key input within the wide range of alternative practices for more sustainable development, thanks to its versatility and potential in different fields such as agriculture or the environment. Some effects derived from the application of biochar to the soil are a reduction of greenhouse gas emissions and the promotion of carbon sequestration in the soil, making possible the rehabilitation of degraded soils (Bis et al, 2018;Gupta et al, 2020). Additionally, biochar reduces dependence on chemical fertilizers in crops by improving the physical, chemical and biological properties of the soil (pH, surface area, cation exchange capacity (CEC), particle density, humidity, and conductivity) (Burrell et al, 2016;Zwart, 2020), reducing the leaching of nutrients, or making a direct or indirect contribution of nutrients that exerts a promoting effect on plant growth and increasing crop yield (Ouyang et al, 2014;Sun et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Impact of biochar use on agricultural production and climate change. A review

Moreno-Riascos

Ghneim-Herrera

2020

Agron. Colomb.

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Biochar is a solid material obtained from the thermal decomposition of biomass of diverse biological origins through a process called pyrolysis. Biochar has great potential for reducing greenhouse gas emissions, sequester carbon in the soil, rehabilitate degraded soils, and reduce dependence on chemical fertilizers in crops. It also improves the physical, chemical, and biological properties of the soil and has a positive effect on plant growth. Given these attributes, there is a growing interest for adopting its use in agriculture, soil and land reclamation, and climate change mitigation. The effects of biochar application can be neutral or positive and will be determined mainly by factors such as the origin of the raw materials, carbonization conditions, frequency of applications, the method of application and dosage. In this review, we offer a detailed examination of the origins of biochar and the technologies used for its production. We examine the various materials that have been used to produce biochars and how they affect their physico-chemical characteristics, and we describe their applications in agriculture and climate change mitigation. Finally, we list the guides that describe the standards for the production, characterization, and commercialization of biochar that seek to guarantee the quality of the product and the essential characteristics for its safe use.

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Role of Biochar in Carbon Sequestration and Greenhouse Gas Mitigation

Cited by 32 publications

References 65 publications

Biochar amendments and its impact on soil biota for sustainable agriculture

Biochar amendments and its impact on soil biota for sustainable agriculture

Management Strategies to Mitigate N2O Emissions in Agriculture

Impact of biochar use on agricultural production and climate change. A review

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