Usage of biochar for mitigation of CO2 emission and enhancement of CH4 consumption in forest and orchard Haplic Luvisol (Siltic) soils

Walkiewicz, Anna; Kalinichenko, K. V.; Kubaczyński, Adam; Brzezińska, Małgorzata; Bieganowski, Andrzej

doi:10.1016/j.apsoil.2020.103711

Cited by 29 publications

(17 citation statements)

References 68 publications

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“…This is because, on the one hand, it is quite a permanent and characteristic quantity, and, on the other hand, because it determines many other more difficult to measure quantities such as air-water relation, pore size distribution and water movement in the profile. Knowing the texture of the soil is important in research into the water and thermal properties [1][2][3][4][5], erosion susceptibility [6,7], gas exchange possibilities [8][9][10] and microbiological activity [11][12][13][14] of soils.…”

Section: Introductionmentioning

confidence: 99%

Particle Size Distribution of Various Soil Materials Measured by Laser Diffraction—The Problem of Reproducibility

et al. 2021

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Particle size distribution is an important soil parameter—therefore precise measurement of this characteristic is essential. The application of the widely used laser diffraction method for soil analysis continues to be a subject of debate. The precision of this method, proven on homogeneous samples, has been implicitly extended to soil analyses, but this has not been sufficiently well confirmed in the literature thus far. The aim of this study is to supplement the information available on the precision of the method in terms of reproducibility of soil measurement and whether the reproducibility of soil measurement is characterized by a normal distribution. To estimate the reproducibility of the laser diffraction method, thirteen various soil samples were characterized, and results were analysed statistically. The coefficient of variation acquired was lowest (3.44%) for silt and highest for sand (23.28%). Five of the thirteen tested samples were characterized by a normal distribution. The fraction content of eight samples was not characterized by normal distribution, but the extent of this phenomenon varied between soils. Although the laser diffraction method is repeatable, the measurement of soil particle size distribution can have limited reproducibility. The main cause seems to be small amounts of sand particles. The error can be amplified by the construction of the dispersion unit. Non-parametric statistical tests should be used by default for soil laser diffraction method analysis.

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Section: Introductionmentioning

confidence: 99%

Particle Size Distribution of Various Soil Materials Measured by Laser Diffraction—The Problem of Reproducibility

et al. 2021

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“…1). These incubation conditions (including a temperature of 25°C) are widely accepted as optimal for methanotrophic bacteria (Malyan et al, 2016;Skopp et al, 1990;Walkiewicz et al, 2020b). In fact, biochar may contribute to CO 2 emissions both biotically (via microbial degradation) and abiotically (via the release of inorganic C contained in the biochar (Gomez et al, 2014;Gul et al, 2015;Jones et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…-30°C, injection volume -150 µL, purge flow 3 cm 3 min -1 ) with helium as a carrier was used to separate the gases. External standards (1% CH 4 in He; 20.9% O 2 in N 2 , Air Products) were used for calibration (Walkiewicz et al, 2020a(Walkiewicz et al, , 2020b.…”

Section: Methodsmentioning

confidence: 99%

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New biochars from raspberry and potato stems absorb more methane than wood offcuts and sunflower husk biochars

Kubaczyński¹,

Walkiewicz²,

Pytlak³

et al. 2020

Int. Agrophys.

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The reduction in greenhouse gas emissions from agriculture is of particular importance at present. In recent times, biochar addition to the soil was suggested as a means of mitigating greenhouse gases emissions from arable fields. More specifically, biochars with useful properties and those produced from easily available waste materials are still being sought. In the presented experiment, the CH 4 absorption potential of four biochars incubated at 60 and 100% water holding capacity with the addition of 1% CH 4 (v/v) was investigated for 28 days at 25 o C. The potato stem and raspberry stem biochars showed much higher potentials for CH 4 uptake than wood offcuts biochar and sunflower husk biochar. Potato stem and raspberry stem biochars incubated at 60% water holding capacity were characterized by a methane uptake rate of 8.01 ± 0.47 and 5.78 ± 0.17 mg CH 4-C kg-1 d-1 , respectively. The methane removal potentials of the other biochars were clearly lower. The advantage of the biochars from raspberry and potato stems over the wood offcuts biochar also results from their significantly lower production of carbon dioxide. Consequently, these materials have a high potential for agricultural use, in view of their impact on the greenhouse gas balance of the soil. K e y w o r d s: biochar, methane, greenhouse gas removal, raspberry stems, potato stems

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“…The best example known is the case of Terra Preta in Brazil, where the fertility of its lands is attributed to the carbonized content derived from this practice [28]. Furthermore, it has been proven its application increases soil fertility [29] and has positive effects on the biota [30], and it has also been demonstrated that it reduces CO 2 and CH 4 emissions from the soil [31].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Joint Management of Pine Wood Waste and Residual Microalgae for Agricultural Application

et al. 2020

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This work addresses the joint management of residual microalgae and pine wood waste through pyrolysis to obtain a solid product for its use as soil amendment and two other by-products (liquid and gaseous) that can be used for energy purposes. Two management routes have been followed. The first route is through the co-pyrolysis of mixtures of both residual materials in several proportions and the later use of their solid fraction for soil amendment. The second route is the pyrolysis of pine wood waste and its direct combination with dried residual microalgae, also using it as soil amendment. The solid fraction assessment shows that from seven solid products (biochar) three stand out for their positive applicability in agriculture as soil amendment. In addition, they also present the benefit of serving as carbon sink, giving a negative balance of CO2 emissions. However, caution is suggested due to biochar applicability being subject to soil characteristics. To ensure the sustainability of the overall process, the energy available in liquid and gaseous fractions has been assessed for covering the drying needs of the residual microalgae in both cases. These results suggest that the pyrolysis process is a sustainable way to manage specific evaluated residues and their products.

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Usage of biochar for mitigation of CO2 emission and enhancement of CH4 consumption in forest and orchard Haplic Luvisol (Siltic) soils

Cited by 29 publications

References 68 publications

Particle Size Distribution of Various Soil Materials Measured by Laser Diffraction—The Problem of Reproducibility

Particle Size Distribution of Various Soil Materials Measured by Laser Diffraction—The Problem of Reproducibility

New biochars from raspberry and potato stems absorb more methane than wood offcuts and sunflower husk biochars

Evaluation of Joint Management of Pine Wood Waste and Residual Microalgae for Agricultural Application

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