Unleashing the sequestration potential of soil organic carbon under climate and land use change scenarios in Danish agroecosystems DOI Creative Commons

Sebastián Gutiérrez,

Diego Grados, Anders Bjørn Møller

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 905, С. 166921 - 166921

Опубликована: Сен. 12, 2023

Future global climate changes are expected to increase soil organic carbon (SOC) decomposition. However, the combined effect of C inputs, land use changes, and on SOC turnover is still unclear. Exploring this SOC-climate-land interaction allows us understand stabilization mechanisms examine whether can act as a source or sink for CO2. The current study estimates sequestration potential in topsoil layer Danish agricultural lands by 2038, considering change future scenarios using Rothamsted Carbon (RothC) model. Additionally, we quantified loss vulnerability existing projected based capacity stabilize OC. We used quantile random forest model estimate initial stock 2018, simulated with RothC business-as-usual (BAU) scenario crop rotation (LUC) under conditions 2038. compared stocks saturation deficit. ranged from 10 181 Mg ha-1 different parts country. projections showed 8.1 BAU 6 after LUC adoption. This was strongly influenced warmer temperatures clay content. proposed became mitigation measure against negative accumulation, especially sandy soils high livestock density. A accumulation C-saturated suggests an non-complexed SOC, which vulnerable being lost into atmosphere With these results, provide information prioritize areas where management practices be adopted enhance stable forms preserve labile-existing stocks.

Язык: Английский

Combining field measurements and process‐based modelling to analyse soil tillage and crop residues management impacts on crop production and carbon balance in temperate areas DOI
Mathieu Delandmeter, Gilles Colinet,

Jérôme Pierreux

и другие.

Soil Use and Management, Год журнала: 2024, Номер 40(3)

Опубликована: Июль 1, 2024

Abstract Crop residues management is an important issue in the context of climate change. They might be kept on field and restituted to soil enhance its fertility or exported for other uses such as production energy through biomethanization. Furthermore, choices regarding tillage operations impact potential incorporate residues, which turn affects physical (e.g. structure, water retention), biological organic matter, microorganisms) chemical nutrient release mineralization) fertility. We combined measurements from a 14‐year experiment Hesbaye loamy region Belgium simulation with STICS soil‐crop model investigate impacts crop production, characteristics carbon balance. Four treatments were compared, where all combinations incorporation versus exportation conventional reduced tested. The comparison observations simulations proved that adequate explore contrasted management. analysis data outputs showed was positively influenced by but unresponsive fate. Reduced led clear stratification observed SOC content topsoil (0–30 cm), also increase simulated stocks (0–26 cm). This gain greater retention under tillage. Moreover, both treatments, incorporating increased despite associated augmentation heterotrophic respiration. Finally, importance environmental conditions balance suggests modelling very useful specific agro‐pedoclimatic contexts, especially when facing

Язык: Английский

Процитировано

5
Full Inversion Tillage (FIT) during pasture renewal as a potential management strategy for enhanced carbon sequestration and storage in Irish grassland soils DOI Creative Commons

Andrew P. Madigan,

Jesko Zimmermann, Dominika Król

и другие.

The Science of The Total Environment, Год журнала: 2021, Номер 805, С. 150342 - 150342

Опубликована: Сен. 15, 2021

It has been suggested that the sequestration of CO2 by agricultural soils offers a means to reduce atmospheric greenhouse gas (GHG) concentrations and in turn mitigate impacts climate change. Carbon grassland soils, which account for more than 60% land use Ireland, could contribute successful net reduction GHG emissions accordance with COP21 Paris Agreement. However, current estimates soil carbon are variable it is likely many permanent grasslands close saturation. A literature search shows enhanced variety different management strategies, although one option only examined date New Zealand full inversion tillage (FIT) during renovation. FIT involves inverting topsoil, generally depths 30 cm, resulting movement C-deficient subsoil surface burying carbon-rich topsoil. In this review, we hypothesise over next ~30 years new topsoil incorporate large amounts organic (SOC) from re-seeded sward vegetation buried will be retained. We assess capability Irish sequester suggest potential role An analysis distribution Ireland using Land Parcel Identification System (LPIS) suggests ~26% Ireland's suitable FIT.

Язык: Английский

Процитировано

28
Benchmarking carbon sequestration potentials in arable soils by on-farm research on innovative pioneer farms DOI Creative Commons
Christoph Rosinger, Gernot Bodner, Luca Giuliano Bernardini

и другие.

Plant and Soil, Год журнала: 2022, Номер 488(1-2), С. 137 - 156

Опубликована: Авг. 1, 2022

Abstract Purpose Tackling the global carbon deficit through soil organic (SOC) sequestration in agricultural systems has been a focal point recent years. However, we still lack comprehensive understanding of actual on-farm SOC potentials order to derive effective strategies. Methods Therefore, chose 21 study sites North-Eastern Austria covering wide range relevant arable types and determined pool sizes (0–35 cm depth) pioneer versus conventional management relation permanently covered reference soils. We evaluated physico-chemical predictors stocks quality differences between using Fourier-transform infrared (FTIR) spectroscopy. Results Compared farming systems, were 14.3 Mg ha − 1 or 15.7% higher equaling rate 0.56 yr . Reference soils however showed approximately 30 50% than respectively. Nitrogen dissolved similar patterns. While could close storage coarse-textured soils, medium- fine-textured 30–40% lower compared quality, as inferred by FTIR spectra, differed land-use yet lesser extent cropping systems. Conclusions Innovative alleviates storage. Actual realized are rather estimated derived from field experiments models. The potential is governed parameters. More approaches necessary evaluate close-to-reality agroecosystems.

Язык: Английский

Процитировано

22
High-resolution soil organic carbon mapping at the field scale in Southern Belgium (Wallonia) DOI
Yue Zhou,

Caroline Chartin,

Kristof Van Oost

и другие.

Geoderma, Год журнала: 2022, Номер 422, С. 115929 - 115929

Опубликована: Май 12, 2022

Язык: Английский

Процитировано

21
Unleashing the sequestration potential of soil organic carbon under climate and land use change scenarios in Danish agroecosystems DOI Creative Commons

Sebastián Gutiérrez,

Diego Grados, Anders Bjørn Møller

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 905, С. 166921 - 166921

Опубликована: Сен. 12, 2023

Future global climate changes are expected to increase soil organic carbon (SOC) decomposition. However, the combined effect of C inputs, land use changes, and on SOC turnover is still unclear. Exploring this SOC-climate-land interaction allows us understand stabilization mechanisms examine whether can act as a source or sink for CO2. The current study estimates sequestration potential in topsoil layer Danish agricultural lands by 2038, considering change future scenarios using Rothamsted Carbon (RothC) model. Additionally, we quantified loss vulnerability existing projected based capacity stabilize OC. We used quantile random forest model estimate initial stock 2018, simulated with RothC business-as-usual (BAU) scenario crop rotation (LUC) under conditions 2038. compared stocks saturation deficit. ranged from 10 181 Mg ha-1 different parts country. projections showed 8.1 BAU 6 after LUC adoption. This was strongly influenced warmer temperatures clay content. proposed became mitigation measure against negative accumulation, especially sandy soils high livestock density. A accumulation C-saturated suggests an non-complexed SOC, which vulnerable being lost into atmosphere With these results, provide information prioritize areas where management practices be adopted enhance stable forms preserve labile-existing stocks.

Язык: Английский

Процитировано

11