A landscape-scale view of soil organic matter dynamics

Nature Reviews Earth & Environment, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Язык: Английский

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Contestations in the emerging soil-based carbon economy: towards a research agenda

Sustainability Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 4, 2025

Abstract This paper highlights the need to consider processes and relations in political, knowledge, technical socio-material complex that underpins emergence of a soil-based carbon economy. economy, characterised by proliferation voluntary markets, farming policies, supply chain other initiatives, operates through private mechanisms (offsetting, insetting) public policy instruments. emerging economy entails number inherent political knowledge contestations associated with claims around mitigation potential soil sequestration farming. We adapt social ecological systems (SES) framework understand these draw on corpus agricultural, ecological, science literatures identify pose critical questions for future research. conceptualise as interactions outcomes among actors embedded within defined SES (governance, resource systems, units, actors). Five themes are identified: Marketisation, abstraction technogovernance; Power expert knowledge; Disputing meaning value carbon; Disruptions: new interfaces, configurations actor relations; Uncertainties capabilities. These underpin research agenda proposal. argue an integrative conceptualisation is essential equitably account broad mix social, technical, economic, contexts which present options operationalising conceptualisation.

Язык: Английский

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Impacts of Woody Residue Amendments and Compost on ‘Beauregard’ Orange Fleshed Sweet Potato

Horticultural Plant Journal, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Advances in modelling soil microbial dynamics

Soil Biology and Biochemistry, Год журнала: 2024, Номер 197, С. 109535 - 109535

Опубликована: Июль 14, 2024

Microbial processes mediating the cycling of carbon and nutrients in soils are complex thus difficult to predict with mathematical models. Such complexity arises because biological ecological dynamics interact physical soil shape patterns resource acquisition use, ultimately organic matter stabilization soil. In article collection "Advances Modelling Soil Dynamics" (https://www.sciencedirect.com/special-issue/10DG8MTGCCF), novel approaches tackle these complexities presented. This perspective summarizes their findings by highlighting theoretical advances outstanding challenges modelling microbial constraints.

Язык: Английский

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Major overlap in plant and soil organic carbon hotspots across Africa

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175476 - 175476

Опубликована: Авг. 13, 2024

Terrestrial plant and soil organic carbon stocks are critical for regulating climate change, enhancing fertility, supporting biodiversity. While a global-scale decoupling between has been documented, the hotspots interconnections these two compartments across Africa, second-largest continent on planet, have significantly overlooked. Here, we compiled over 10,000 existing observations to generate high-resolution map, illustrating distribution pattern of in Africa. We then showed that above- below-ground positively correlated with Both shared major tropical regions. Our study provides insights into spatial essential conservation safeguarding terrestrial amidst challenges change.

Язык: Английский

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Linking structure and functions in agricultural soils

Advances in agronomy, Год журнала: 2024, Номер unknown, С. 363 - 403

Опубликована: Янв. 1, 2024

Язык: Английский

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‘Shifting gears ain't easy’: Disciplinary resistances to perspective shifts in soil science and how to move forward

European Journal of Soil Science, Год журнала: 2024, Номер 75(6)

Опубликована: Сен. 1, 2024

Abstract Over the last decade, fact that novel perspectives on various aspects of soils have remained strongly controversial long after they emerged, without any kind consensus being reached about them, raises question underlying reasons for this phenomenon. The on‐going debate usefulness aggregates to describe functions illustrates some key question. Similar debates other soil‐related issues also appear stalled, or been a time and are only now moving forward. This might suggest fundamental aversion change, which when it gets overcome, does so slowly. However, at same time, somewhat surprisingly, researchers willing quickly seize opportunities provided by new idea topics. In context, objective present article is analyse in detail what may cause such contrasting reactions novelty. We consider, then ultimately dismiss, explanations based how not actively promoted, access suitable technology impede slow down perspective shifts whether recent theory ‘slowed canonical progress large fields science’ applies relatively small soil science community. Then, taking as case point, we come realize extent mandates an interdisciplinary approach determines adopted quickly. From standpoint, envisage number practical actions could be taken facilitate future emergence research efforts, argue absolutely essential successfully tackle enormous complexity up with satisfactory answers daunting environmental food security problems currently face their management.

Язык: Английский

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Procarbon-Soil—Procs: A Dynamic Soil Carbon Model for Improved Model-Data Compatibility in Carbon Farming

Опубликована: Янв. 1, 2024

Carbon farming trading schemes (CFTS) are emerging as a nature-based solution to contribute the mitigation of climate change by capturing carbon from atmosphere and storing it in plant-soil system soil organic (SOC). Increasing SOC for CFTS requires improved management practices, monitoring through sampling measurements, ex-ante economic evaluation. The implication is that needs be quantified reliably, i.e., compatible with measurements data validation certification under CFTS. Multicompartmental dynamic models (mSCDM) have been widely proposed assessing spatial temporal trajectories stocks. However, overly complex structure mSCDM means they prone overparameterization overfitting, poor performance unseen data, thus, not appropriate present paper addresses this gap describing development ProCarbon-Soil (PROCS) model, designed explicitly CTFS new context data-model fusion.PROCS holds same fundamental biophysical principles most applied SCDM has advantage improving adherence empirical shortening soil-plant system's state variables total stocks decomposability allow reducing number parameters needed.

Язык: Английский

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Soil health – a perspective

Frontiers in Soil Science, Год журнала: 2024, Номер 4

Опубликована: Окт. 9, 2024

Governments and organizations are expressing growing concerns about soil health, driven largely by uncertainties of food security with an increasing human population unpredictable effects climate change. Although considerable literature debate exist, there is discord around the question, what a healthy soil? This not surprising, given complex roles provides, from range food, fiber medical products, hosting biodiverse community, supporting water nutrient cycles. While consensus seems to suggest that in good health should be able provide goods services perpetuity, this does define rather its provisioning functions. To explore ‘what healthy?’, we propose analogy comparing indicators health. For example, identify cause symptom, compare diagnostic pH both humans soil, demonstrating similarities between way addressed. Additionally, consider context necessitates use set holistic predictors link further. In humans, genetics express many traits can predispose one certain illnesses or diseases, same way, parent material, texture, length time exposed weathering inform soil’s capability predisposition for habitats uses. cases, science informs state appropriate management solutions. We posit null hypothesis “the concept cannot applied soil”.

Язык: Английский

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Computational microbiology of soil organic matter mineralization: Use of the concept of curve skeleton to partition the 3D pore space in computed tomography images

Опубликована: Окт. 25, 2024

Abstract Recent advances in 3D X-ray Computed Tomography (CT) sensors have stimulated research efforts to unveil the extremely complex micro-scale processes that control activity of soil microorganisms. Classical methods for numerical simulation biological dynamics using meshes voxels, such as Lattice Boltzmann Method (LBM), tend require long computation times. The use more compact geometrical representations pore space can drastically decrease computational cost simulations. has introduced basic analytic volume primitives define piece-wise approximations simulate drainage, diffusion, and microbial mineralization organic matter soils. Such approaches work well but a drawback is they give rise non-negligible approximation errors. In present article, another alternative proposed, where described by means geometrically relevant connected subsets voxels (regions) regrouped on basis curve linear skeleton (3D medial axis). This been adopted characterize shapes various fields (e.g., medical imaging, material sciences, etc.) few publications used it context soils, dealt exclusively with determination throats. technique mostly describe shape not partition into subsets. Here, partitioned branches skeleton, then an attributed relational graph created order numerically matter, including diffusion by-products. new representation be graph-based simulations, which are different from voxel-based

Язык: Английский

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