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Wyszukujesz frazę "organic carbon sequestration" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
The content and stock of organic carbon in the soils of grasslands in Poland and the possibility of increasing its sequestration
Autorzy:
Pietrzak, Stefan
Hołaj-Krzak, Jakub T.
Powiązania:
https://bibliotekanauki.pl/articles/2174364.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
grassland
management practice
organic carbon content
organic carbon stock
organic carbon sequestration
soil
Opis:
The aim of the study was to recognise the accumulation of organic carbon (SOC) in the soils of Polish grasslands (GL) and to consider the possibility of increasing its sequestration in these soils. The Tiurin method (mineral soils) and the mass loss method (soil of organic origin) were used. It was found that: (i) the average SOC content of mineral soils is 2.44% and of organic soils - 10.42%; (ii) according to the Polish criteria, approximately 84% of GL mineral soils are classified as classes with high and very high SOC content, and over 15% and 1% - in classes with medium and low SOC content, respectively; more than 99% of organic soils belong to two classes with the highest SOC content and less than 1% to the class with an average content; (iii) according to the European Soil Bureau, the share of GL mineral soils with a high SOC content is slightly over 4%, medium - slightly over 47%, and low and very low - around 50%; for organic soils they are 67, 29, and 4%, respectively; (iv) the reserves of organic carbon in the 0-30 cm layer on the entire surface of GL soils amount to 412.7 Tg of SOC. There is considerable scope for increasing the SOC stock in meadow-pasture soils.
Źródło:
Journal of Water and Land Development; 2022, 54; 68--76
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sequestration of organic carbon influenced by the application of straw residue and farmyard manure in two different soils
Autorzy:
Mahmoodabadi, M.
Heydarpour, E.
Powiązania:
https://bibliotekanauki.pl/articles/25526.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
carbon sequestration
organic carbon
application
straw residue
farmyard manure
soil
organic matter incorporation
Opis:
Soil organic carbon is one of the most important soil components, which acts as a sink for atmospheric CO2. This study focuses on the effect of different methods of organic matter application on the soil organic carbon sequestration in a 4-month experiment under controlled greenhouse conditions. Three rates of straw residue and farmyard manure were added to uncultivated and cropland soils. Two treatments of straw residue and farmyard manure incorporation were used into: a soil surface layer and 0-20 cm soil depth. The result showed that the application of organic matter, especially the farmyard manure incorporation led to a significant increase in the final soil organic carbon content. Higher amounts of soil organic carbon were stored in the cropland soil than in the uncultivated soil. On average, the soil surface layer treatment caused a higher sequestration of soil organic carbon compared to the whole soil depth treatment. If higher rates of organic matter were added to the soils, lower carbon sequestration was observed and vice versa. The result indicated that the carbon sequestration ranged farmyardmanure > strawresidue and cropland soil > uncultivated soil. The findings of this research revealed the necessity of paying more attention to the role of organic residue management in carbon sequestration and prevention of increasing global warming.
Źródło:
International Agrophysics; 2014, 28, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling soil organic carbon sequestration under crops for biofuels in Poland
Autorzy:
Krasuska, Ewa
Faber, Anton
Jaros, Zuzanna
Kaczyński, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2168313.pdf
Data publikacji:
2016-12
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
soil organic carbon
carbon sequestration
tillage
no-till
modelling
CO2
Opis:
The soil organic carbon (SOC) stocks have become of special importance for sustainable biofuels production. We focused on SOC changes in high activity clay soils in Poland un- der arable crops for biofuels production. The SOC sequestration values were calculated using a DNDC model with four different tillage systems. The initial SOC stocks in Poland were highly spatially variable with values in the range of 35–97 t C ha-1 . The simulated regional SOC sequestration rates in topsoils ranged from -0.17 to 0.32 t C ha-1 year-1 in full tillage, 0.36–0.73 t C ha-1 year-1 in reduced tillage, and 1.69–3.22 t C ha-1 year-1 in no-tillage. For full tillage with straw incorporation the results for SOC sequestration were similar to those of the reduced tillage. The uncertainties of the estimations were provided, in addition to the length of the periods of SOC sequestration. The results for Poland are relatively high comparted to those from literature which might suggest that DNDC overestimated the SOC stocks in our study. Although DNDC was based on long-term tests and proved adequate SOC simulations in many studies, still a comprehensive model validation is required in a field scale with relevant SOC measurements, climatic, soil and crop data.
Źródło:
Polish Journal of Agronomy; 2016, 27; 126-136
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of plant Communities and Ecological Parameters on Soil Organic Carbon Stocks in the Mamora Forest, Morocco
Autorzy:
Boujraf, Amal
Dallahi, Youssef
Dahmani, Jamila
Orlando, Collins Ashianga
Douira, Allal
Powiązania:
https://bibliotekanauki.pl/articles/24201779.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
SOC stock
soil organic carbon
carbon sequestration
plant community
ecological parameter
Mamora forest
Morocco
Opis:
Several studies on the assessment of soil organic carbon (SOC) stocks have been carried out at the global level. However, reliable information on SOC stocks is not readily available at the regional level. In addition, very few studies have assessed the factors responsible for the variation of SOC stocks, in particular the effect of plant communities. For this purpose, the main objective was to analyze the effects of three plant communities and ecological parameters on the SOC stock in the Mamora forest. Specifically, the authors looked to examine the relationships between SOC stock and plant communities and to define the main parameters that directly influence SOC stock. Ten soil profiles with three replications were sampled at each plant community, from which SOC stock was determined. To assess the effect of plant communities on SOC stocks, phytosociological surveys were carried out according to the phytosociological stigma method developed by Braun-Blanquet. The results show that the SOC stocks in cork oak soils are characterized by high variability, with values ranging from 55 t•ha-1 to 95 t•ha-1. Indeed, the findings of this study showed that the SOC stocks fluctuated significantly with plant communities. In addition, SOC stocks were also affected by the interactions between plant communities, the amount of litter and the density of the cork oak stand. These outcomes of this study highlight the critical need to incorporate community-specific carbon values into future carbon sequestration modeling.
Źródło:
Journal of Ecological Engineering; 2023, 24, 5; 128--136
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clay-organic complexes in a Polish loess soil
Autorzy:
A. Czyż, Ewa
Rejman, Jerzy
R. Dexter, Anthony
Jadczyszyn, Jan
Rafalska-Przysucha, Anna
Stanek-Tarkowska, Jadwiga
Powiązania:
https://bibliotekanauki.pl/articles/973053.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
carbon sequestration
clay dispersion
complexed organic matter
non-complexed clay
strip tillage
Opis:
Complexes formed between clay and soil organic matter are important for carbon sequestration and for soil physical quality. Here, we use samples of loessial soil from South-East Poland to explore the phenomenon of complexing in loess. Soil samples were collected from a single catchment 8 years after the introduction of strip tillage and their compositions were characterized by traditional methods. Complexing was characterized in terms of the content of non-complexed clay which was estimated in two ways: firstly, by measurement of the content of readily-dispersible clay (which was assumed to be the non-complexed clay); and secondly, by calculation using algorithms that had been developed and evaluated previously. The calculations were based on the concept that, at carbon saturation, the clay/organic carbon mass ratio is equal to n. The calculations were done with a range of values of n. It was assumed that the correct value of n was that which gave the greatest coefficient of correlation between the measured values of clay dispersion and the predicted values of non-complexed clay. For the loess used, the optimum value was n = 14.
Źródło:
International Agrophysics; 2017, 31, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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