Review: emission and absorption of greenhouse gases by soils. Ecological problems

Fedorov, Yu. A.; Sukhorukov, V.V.; Trubnik, Roman Gennad'yevich

doi:10.17072/2410-8553-2021-1-6-34

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…Soils are emitters of greenhouse gases, accurate quantification of soil respiration volumes is an important task contributing to the research and forecasting of global climate change [25]. Respiration activity is the sum of heterotrophic and autotrophic respiration of the soil microbial community, that depends on ambient temperature, soil moisture, biogenic elements, and plant exudates [26,27].…”

Section: Discussionmentioning

confidence: 99%

The replacement of mineral fertilizers with chicken manure biochar significantly decreases the carbon footprint of wheat

Galieva,

Shaykheeva,

Kuryntseva

et al. 2023

E3S Web of Conf.

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Biochar is a product of oxygen-free thermal decomposition of biomass and refers alternative fertilizers. Data on the carbon footprint of agricultural products obtained using different types of biochars are not enough to date. The purpose of this study was to compare the carbon footprint of wheat of the grade "Yoldyz-Elita", grown using mineral fertilizers "Diamofoska" and biochar. Biochar was received from chicken manure, the pyrolysis process was at 400ºC, for 2 hours. Biochar was added in an amount of 30 t/ha, mineral fertilizers "Diamofoska" in an amount of 300 kg/ha, respectively. Calculations the carbon footprint included data on fuel consumption and N2O emission from mineral fertilizers, CO2 emission from soil (respiration activity), data on C fixation in biomass of wheat plants and in biochar. It was demonstrated that the use of biochar led to an increase in total soil carbon by 28% by the end of the field experiment. The application of biochar led to an increase in wheat yield by 2.5 times that was similar to the yield with application of mineral fertilizers. It was found that the main contribution to the carbon footprint of wheat was the respiration activity of the soil (up to 95%). The volume of CO2 from fuel used by agricultural machinery was insignificant (0.5% of the total CO2 emissions), soil cultivation with mineral fertilizers increased CO2 emissions by 3%. The use of biochar as an organomineral fertilizer led to a 79% decrease in the carbon footprint of wheat. Thus, biochar from chicken manures may be recommended to reduce the carbon footprint of wheat.

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Section: Discussionmentioning

confidence: 99%

The replacement of mineral fertilizers with chicken manure biochar significantly decreases the carbon footprint of wheat

Galieva,

Shaykheeva,

Kuryntseva

et al. 2023

E3S Web of Conf.

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“…Soil air provides plants with CO2, based on its constant exchange with atmospheric air. 10-15% of the composition of soil air is renewed per day [21]. At the same time, in agroecosystems, soil air composition is partly regulated by organic matter.…”

Section: Figurementioning

confidence: 99%

Biogeochemical Technologies for Managing CO2 Flows in Agroecosystems

Bashkin¹,

Alekseev²,

Levin³

et al. 2023

Adv Environ Eng Res

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The review article discusses the application of biogeochemical technologies aimed at restoring biogeochemical cycles in agroecosystems, primarily in the microbial link regulating CO2 flows. The factors of management this microbial link when applying mineral and organic fertilizers are shown. The processes of mineralization of soil organic matter and methods of controlling soil's conjugate carbon- and nitrogen-mineralizing ability are considered. The changes in the productivity of agricultural ecosystems under conditions of increasing concentration of carbon dioxide in the atmosphere and soil air are considered. Various agrotechnological techniques are considered, including using zero tillage, organic fertilizers of various nature, and various meliorants, including phosphogypsum. Examples of recultivation of disturbed and polluted soils, waterlogged and/or over-drained soils are given and the impact on CO2 fluxes is estimated. Based on numerous data, it is concluded that agroecosystems in most cases are a net source of CO2, and sequestration occurs only when agricultural land is transferred to fallow lands and at afforestation. At the same time, techniques aimed at reducing CO2 fluxes using fertilizers in the "production–application" cycle are evaluated. A set of biogeochemical technologies aimed at assessing and stabilizing the microbial link of the biogeochemical cycle in agroecosystems is presented. Examples of the use of these technologies for regulating CO2 emissions in agroecosystems are given. Using one of the biogeochemical technologies, the almost 5-fold decrease in the rate of CO2 flows during the reclamation of disturbed tundra ecosystems is shown. Adopting agricultural low carbon technologies (ALCTs) cannot yet testify to their applicability to ensure both food and environmental safety. It is necessary to further develop and use biogeochemical technologies to restore biogeochemical cycles in agroecosystems, primarily in the microbial link regulating CO2 flows.

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“…The complexity and global nature of environmental problems makes it impossible to understand quickly and easily all the details of the problems and challenges. Anthropogenic activities, among other things, increase the concentrations of greenhouse gases in the atmosphere, which persist for a long time [49,50].…”

Section: Aspects Of the Life Cycle In Ecologymentioning

confidence: 99%

Aspects of life cycle in its projection onto production of meat and meat-containing canned food: systematic review

Gustova

2022

Teor. prakt. pererab. mâsa (Print)

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While choosing one or another product from a wide variety on the market, we intuitively focus on the quality of the food product, we pay attention to its source, raw material and how this food is made. At the same time, the same questions are being asked by food manufacturers as they want to be sure of the quality and safety of purchased raw materials and ingredients. In both cases, decisions should be based on the consequences they could entail. It must be acknowledged that any failure in the field-to-shelf chain system may harm the consumers’ health, as well as may lead to disruptions and losses in the food industry. Producers and consumers are increasingly concerned in the terms of life cycles. The life cycle is the most expressive and comprehensive approach to achieve the highest usefulness of the made decisions. The fact is that life cycle problems can be solved, and product life cycles can be managed, controlled and regulated. This is widely applied, for example, by the use of life cycle methodology in solving environmental problems highlighted in this article. However, in the meat processing industry the standards of the ISO 9000 series are not supported by this methodology. It was necessary to find and define the problem-exposed stages from the full life cycle of production of meat and meat-containing canned food within the system “from the field to the shop shelf”. Those problem-exposed stages are responsible for safety and quality of canned food and responsible for maintaining the safety and quality of ready-to-eat food products, as the most relevant stages in the meat processing industry. Here the author proposes for consideration three stages of the life cycle of canned meat and meat-containing food, including its pre-production, production process and post-production. It is assumed that the impacts at certain limited stages of the canned food production cycle will be representative in terms of consequences of applied decisions.

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Review: emission and absorption of greenhouse gases by soils. Ecological problems

Cited by 10 publications

References 26 publications

The replacement of mineral fertilizers with chicken manure biochar significantly decreases the carbon footprint of wheat

The replacement of mineral fertilizers with chicken manure biochar significantly decreases the carbon footprint of wheat

Biogeochemical Technologies for Managing CO<sub>2</sub> Flows in Agroecosystems

Aspects of life cycle in its projection onto production of meat and meat-containing canned food: systematic review

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