Stabilization of organic matter in soils: drivers, mechanisms, and analytical tools – a literature review

Revista Brasileira de Ciência do Solo, Journal Year: 2023, Volume and Issue: 47

Published: Jan. 1, 2023

ABSTRACT Soils are the largest terrestrial carbon (C) reservoir, and most of this C is retained as soil organic matter (SOM). Due to its ability capture, stabilize, store for extended periods, soils considered important allies in decarbonizing atmosphere. The term ‘C stabilization’ includes a series mechanisms or processes by which protected within losses reduced through microbial decomposition leaching. their relevance global cycle, stabilization have received intensive attention from scientific community. As new analytic technologies push boundaries what was previously possible know, paradigms emerge. This literature review summarizes current knowledge main that may promote SOM stabilization. Factors govern accumulation also addressed. We highlight role organo-mineral associations spatial inaccessibility due occlusion aggregates understand relative contribution these different conditions (e.g., texture, mineralogy, land- use). In addition, cutting-edge approaches analytical techniques advance understanding protection presented. Modern evaluate on micro, nano, molecular scale can contribute mechanistic study adoption management strategies maintain increase stocks soils.

Language: Английский

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Crop sequence intensification: Meta‐analysis of soil organic carbon and aggregate stability in Argentina

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(2)

Published: March 1, 2024

Abstract Intensification of crop sequence (ICS) has been proposed as a key field practice to preserve soil health and achieve more sustainable agricultural systems. However, the effects ICS are site‐specific vary according characteristics, climatic conditions, duration sequencing types involved. Soil aggregate stability (AS) organic carbon (SOC) stock useful indicators they closely linked diverse services functions sensitive management practices. We performed meta‐analysis 33 studies analyse impact on SOC AS in experiments central‐eastern region Argentina. Our results showed that increased AS, with an overall mean change 7% 22%, respectively. Fine‐textured soils greatest increase (12%), comparable observed coarse‐textured (11%); medium‐textured this was less than half (5%). Coarse‐textured had (32%), followed by fine‐textured soils, which also notable improvements (25% 19%, respectively). Greater diversity crops resulted larger increases both SOC. generated surface (0–10 cm) subsurface (10–20 cm), whereas opposite found for AS. Long‐term (≥9 years) effect stock. Regression analysis revealed initial influenced following ICS, being greater when contents were smaller. Introducing gramineous species into associated improvement Finally, rate sequestration from all amounted 0.28 Mg ha −1 yr . Overall, is strategy improving storage region, though may characteristics

Language: Английский

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Trophic groups of soil fauna in semiarid: Impacts of land use change, climatic seasonality and environmental variables

Pedobiologia, Journal Year: 2021, Volume and Issue: 89, P. 150774 - 150774

Published: Oct. 15, 2021

Language: Английский

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Soil food-web energy fluxes reveal diverse responses to smallholder land-use choices in temperate forests

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 200, P. 109619 - 109619

Published: Oct. 16, 2024

Language: Английский

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Well-managed grass is a key strategy for carbon storage and stabilization in anthropized Amazon soils

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 373, P. 123742 - 123742

Published: Dec. 18, 2024

Language: Английский

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