Long-term manure applications to increase carbon sequestration and macroaggregate-stabilized carbon

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 174, P. 108827 - 108827

Published: Sept. 12, 2022

Language: Английский

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Current controversies on mechanisms controlling soil carbon storage: implications for interactions with practitioners and policy-makers. A review

Agronomy for Sustainable Development, Journal Year: 2023, Volume and Issue: 43(1)

Published: Feb. 1, 2023

Abstract There is currently an intense debate about the potential for additional organic carbon storage in soil, strategies by which it may be accomplished and what actual benefits might agriculture climate. Controversy forms essential part of scientific process, but on topic soil storage, confuse agricultural community general public delay actions to fight climate change. In attempt shed light this topic, originality article lies its intention provide a balanced description contradictory opinions examine how can support decision-making despite controversy. first part, we review reconcile conflicting views mechanisms controlling dynamics soil. We discuss divergent chemical recalcitrance, microbial or plant origin persistent matter, contribution particulate matter spatial energetic inaccessibility decomposers. second advantages limitations big data management modeling, are tools link latest theories with taken stakeholders. Finally, show analysis discussion controversies guide scientists supporting stakeholders design (i) appropriate trade-offs biomass use forestry (ii) climate-smart practices, keeping mind their still unresolved effects storage.

Language: Английский

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“Reactive Mineral Sink” drives soil organic matter dynamics and stabilization

npj Materials Sustainability, Journal Year: 2023, Volume and Issue: 1(1)

Published: Nov. 27, 2023

Abstract Reactive primary and secondary minerals play a critical role in the transformation stabilization of organic matter (OM) soil, aspect that has been largely overlooked existing literature. In this regard, we propose new model known as “reactive mineral sink” (RMS) to illustrate three mechanisms through which these drive bioprocessing, transformation, transport OM soil. Firstly, from biological perspective, reactive influence enzymatic microbial processing binding proteins or influencing structure communities. Secondly, chemical standpoint, have capacity adsorb and/or coprecipitate with it, leading more diverse distribution This distribution, turn, triggers catalysis redox reactions. Thirdly, on physical level, substantial impact soil architecture, aggregate dynamics, porosity development, hydrological processes. These changes then affect transport, reprocessing OM. The RMS provides conceptual framework underscores fundamental driving dynamics carbon (C) sequestration natural Furthermore, it promotes restoration biogeochemical processes ecological resilience. We advocate for implementation strategies based enhance C soils purposes rejuvenating health mitigating CO 2 emission.

Language: Английский

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Soil Organic Carbon and Mineral Nitrogen Contents in Soils as Affected by Their pH, Texture and Fertilization

Agronomy, Journal Year: 2023, Volume and Issue: 13(1), P. 267 - 267

Published: Jan. 16, 2023

Soil organic carbon (SOC) and mineral nitrogen (Nmin), especially nitrates (NO3−) in agroecosystems have attracted much attention over the past few decades due to their crucial roles soil fertility, crop productivity, environmental quality, and/or climate change mitigation adaptation. The aim of study was evaluate contents carbon, ammonium, nitrate soils under differentiated pH, texture, fertilization rates. A large-scale conducted Polish arable lands. spatial distribution sampling points reflected agricultural production conditions, variability properties, representativeness textures that are characteristic Poland. Our results indicated SOC content significantly affected by pH texture as well fertilization. same factors, except amendments, supported concentration present study. most important factors controlling were ranked follows: > pre-crop N applied with manure texture. In case N-NH4 N-NO3, critical variable. governance should consider ranks contents.

Language: Английский

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Relevance of the organic carbon to clay ratio as a national soil health indicator

Geoderma, Journal Year: 2024, Volume and Issue: 443, P. 116829 - 116829

Published: Feb. 22, 2024

The soil organic carbon (SOC) to clay-sized particles ratio (SOC/clay) has recently been selected as an indicator of the matter status in managed mineral soils within framework European Soil Monitoring Law proposal. This was initially developed predict structural quality a local study Switzerland and subsequently tested at national scales England Wales, Germany. In this study, we evaluated if SOC/clay relevant assess scale mainland France. We additionally its variant, SOC/(silt < 20 µm + clay). confronted clay) two indicators structure, bulk density aggregate stability, effect land use type using information from French Quality Network (RMQS). showed that were poor stability. our analysis, SOC content best structure. Both had on value. found be strongly affected by pH with acidic consistently being classified healthy according threshold 1/13 alkaline often unhealthy. domain applicability excludes involving other stabilization mechanisms than associations clay fraction climate is not taken into account. Based RMQS dataset, 63 % cropland, 81 permanent crop 23 grassland below 1/13, which would classify them unhealthy Law. questioned relevance proposed structure indicator, more broadly for all pedoclimatic contexts. leaves possibility correction factors specific types or climatic conditions, appears necessary France, because some contexts will never allow satisfactory value reached.

Language: Английский

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Is the organic carbon-to-clay ratio a reliable indicator of soil health?

Geoderma, Journal Year: 2024, Volume and Issue: 444, P. 116862 - 116862

Published: March 27, 2024

Climate action plans under the Paris Agreement and other national commitments aimed at improving soil-based ecosystem services require operational monitoring of soil carbon (C). The European Union is aiming to enhance health, as part proposed Soil Monitoring Law, Commission recommends C loss indicator among health indicators. In this study, we evaluate feasibility by assessing its performance using EU-wide 2009 LUCAS survey data. organic (SOC) clay ratio, with a threshold value 1:13. results are also compared stock changes reported countries climate convention (UNFCCC). Our reveal that variation in SOC content scale exceeds data used develop indicator. We found was influenced not only but land-use reflecting input levels. Therefore, defined inadequate for detecting degraded soils if beyond conditions establish criteria. Furthermore, major discrepancies were observed between greenhouse gas (GHG) inventories proportions identified conclude employing single such SOC:Clay ratio one all across various land covers, management practices, climatic conditions, inappropriate loss.

Language: Английский

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High organic carbon content constricts the potential for stable organic carbon accrual in mineral agricultural soils in Finland

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 352, P. 119945 - 119945

Published: Jan. 12, 2024

Sequestering carbon into agricultural soils is considered as a means of mitigating climate change.We used agronomic soil test results representing c. 95% the farmed land area in Finland to estimate potential uppermost 15 cm layer mineral sequester organic (OC) and contribute mitigation change.The estimation maximum capacity matter protect OC stable mineral-associated form was based on theory that clay fine-sized (fines = + silt) particles have limited OC.In addition, we clay/OC fines/OC ratios identify areas with risk erosion reduced productivity, thus indicating priority potentially benefitting from increased contents.We found 32-40% further accumulate (MOC), while majority soils, current stock exceeded OC.The nationwide sequestration ranged between 0.21 0.26 Tg, which corresponds less than 2% annual greenhouse gas emissions Finland.The fields highest for SOC accrual were southern southwestern parts country, including some most intensively cultivated high-clay soils.Although additional estimated be relatively small, storage Finnish arable (0-15 cm) large, 128 Tg.Farming practices enabling input play an important role tool loss high-OC changing climate.Furthermore, especially MOC accrual, efforts increase could help improve structural stability therefore reduce nutrients aquatic environments.

Language: Английский

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Organic carbon in Mollisols of the world − A review

Geoderma, Journal Year: 2024, Volume and Issue: 447, P. 116937 - 116937

Published: June 12, 2024

Language: Английский

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Depth dependence of soil organic carbon additional storage capacity in different soil types by the 2050 target for carbon neutrality

SOIL, Journal Year: 2025, Volume and Issue: 11(1), P. 149 - 174

Published: Feb. 5, 2025

Abstract. Land planning projects aiming to maximize soil organic carbon (SOC) stocks are increasing in number and scope, often line with the objective reach neutrality by 2050. In response, a rising of studies assesses where additional SOC could be stored over regional global spatial scales. order provide realistic values transferrable beyond scientific community, providing targets accrual should consider timescales needed them, taking into consideration effects C inputs, type, depth on dynamics. This research was conducted 320 km2 territory north-eastern France, eight contrasted types have been identified, characterized, mapped thanks high density fully described profiles. Continuous profiles were interpolated for each type land use (cropland, grassland, or forest). We defined potential using percentile boundary lines used linear model depth-dependent dynamics explore inputs necessary those within 25 years. also from literature input scenarios provided maps stocks, maximum accrual, highly heterogenous region study. Median range 78–333 tC ha−1. Maximum varies 19 ha−1 forested Leptosols 197 grassland Gleysols. The simulated years whole study one-fifth accrual. Further different is therefore storage relevant public policies approach

Language: Английский

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Distinct impact of land use and soil development processes on coupled biogeochemical cycling of C, N and P in a temperate hillslope-flood plain system

Biogeochemistry, Journal Year: 2025, Volume and Issue: 168(1)

Published: Feb. 9, 2025

Language: Английский

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