Balancing litterfall and decomposition in cacao agroforestry systems

Plant and Soil, Journal Year: 2022, Volume and Issue: 473(1-2), P. 251 - 271

Published: Jan. 8, 2022

Abstract Backgrounds and aims Litter protects the underlying soil, depending on litterfall decomposition, but dynamics of standing litter stock in agroforestry systems remain poorly understood. We aimed to unravel effects quality, temporal patterns, microclimate, a possible home-field advantage (HFA) across land-use gradient. Methods quantified litterfall, stock, microclimate during year (remnant) forest, cacao-based simple complex agroforestry, cacao monocultures, annual crops producing area Indonesia. conducted reciprocal transfer experiment, tested decomposition rates pruning residues. Standing stocks were estimated from monthly rates. Results Variation quality influenced more strongly than variation or HFA. Lower monoculture decreased decay rate compared systems; mean residence time was over year. Mixing high- low-quality material residues modified rate, soil C N changes, offering options for targeted management protection nutrient release. Conclusions The seasonal patterns relatively slow supported permanence layer all production systems, protecting soil.

Language: Английский

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The global biogeography of soil priming effect intensity

Global Ecology and Biogeography, Journal Year: 2022, Volume and Issue: 31(8), P. 1679 - 1687

Published: May 10, 2022

Abstract Aim Fresh carbon (C) inputs to the soil can have important consequences for decomposition rates of organic matter (priming effect), thereby impacting delicate global C balance at soil–atmosphere interface. Yet, environmental factors that control priming effect intensity remain poorly understood a scale. Location Global. Time period 1980–2020. Major taxa studied Soil intensity. Methods We conducted dataset CO 2 effluxes in 711 pairwise soils with 13 or 14 simple sources and without from incubation experiments which isotope‐labelled was used quantify fresh C‐induced rather than exudate‐induced priming. Results is predominantly positive. texture content were identified as most associated effects, sandy tropical mid‐latitudes supporting highest intensity, greater fine textures high latitudes maintaining lowest effects. The negative association between also indirectly driven by changing mean annual temperature, net primary productivity, fungi : bacteria ratio. Using this information, we generated map found lower higher latitudes. Main conclusions Global patterns be predicted using data, playing predominant role explaining These effects climate, vegetation microbial properties. present first atlas advance our knowledge on potential mechanisms underlying are integral improving climate change dynamics components Earth System models.

Language: Английский

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Functional Potential of Soil Microbial Communities and Their Subcommunities Varies with Tree Mycorrhizal Type and Tree Diversity

Microbiology Spectrum, Journal Year: 2023, Volume and Issue: 11(2)

Published: March 23, 2023

Loss of multifunctional microbial communities can negatively affect ecosystem services, especially forest soil nutrient cycling. Therefore, exploration the genomic potential communities, particularly their constituting subcommunities and taxa for cycling, is vital to get an in-depth mechanistic understanding better management ecosystems.

Language: Английский

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Higher biochar rate strongly reduced decomposition of soil organic matter to enhance C and N sequestration in nutrient-poor alkaline calcareous soil

Journal of Soils and Sediments, Journal Year: 2020, Volume and Issue: 21(1), P. 148 - 162

Published: Aug. 26, 2020

Language: Английский

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Priming of soil organic carbon mineralization and its temperature sensitivity in response to vegetation restoration in a karst area of Southwest China

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 851, P. 158400 - 158400

Published: Aug. 29, 2022

Language: Английский

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Microbial community structure and functional genes drive soil priming effect following afforestation

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 825, P. 153925 - 153925

Published: Feb. 23, 2022

Language: Английский

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Effects of different management practices on soil microbial community structure and function in alpine grassland

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 327, P. 116859 - 116859

Published: Nov. 28, 2022

Language: Английский

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Changes over time in organic matter dynamics and copper solubility in a vineyard soil after incorporation of cover crop residues: Insights from a batch experiment

Chemosphere, Journal Year: 2024, Volume and Issue: 350, P. 141137 - 141137

Published: Jan. 8, 2024

Language: Английский

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Soil Health to Enhance Ecological Restoration and Conservation

Journal of Sustainable Agriculture and Environment, Journal Year: 2024, Volume and Issue: 3(4)

Published: Oct. 1, 2024

ABSTRACT Ecological restoration has gained increased attention to combat the global biodiversity and habitat loss driven by human activities climate change. To address these impacts, efforts apply interventions aimed at recovering native ecosystems on degraded lands. However, they tend centre vegetation‐based interventions, with limited aboveground belowground linkages. Soil health, including its physicochemical, biological functional attributes, is fundamental ecosystem resilience sustainability, provision of services, well‐being. This synthesis explores how a deeper understanding soil‐vegetation interactions can support conservation efforts. We discuss be applied from early later stages restoration, future directions novel approaches that target processes promote soil health successful plant community establishment. propose integrating practices explicitly consider linkages among vegetation, properties biota lead more effective outcomes establishment resilient, self‐sustaining ecosystems.

Language: Английский

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Phenolic acid-degrading Paraburkholderia prime decomposition in forest soil

ISME Communications, Journal Year: 2021, Volume and Issue: 1(1)

Published: March 25, 2021

Abstract Plant-derived phenolic acids are catabolized by soil microorganisms whose activity may enhance the decomposition of organic carbon (SOC). We characterized whether acid-degrading bacteria SOC mineralization in forest soils when primed with 13C-labeled p-hydroxybenzoic acid (pHB). further tested pHB-induced priming could explain differences content among mono-specific tree plantations a 70-year-old common garden experiment. pHB addition significant losses (3–13 µmols C g−1 dry wt over 7 days) compared to glucose, which reduced (-3 -8 days). The principal degraders were Paraburkholderia and Caballeronia all regardless species or type, one predominant phylotype (RP11ASV) enriched 23-fold following peak respiration. isolated confirmed degrading strain matching this (RP11T), encoded numerous oxidative enzymes, including secretion signal-bearing laccase, Dyp-type peroxidase aryl-alcohol oxidase. Increased relative abundance RP11ASV corresponded higher respiration expression monooxygenase (pobA), was inversely proportional plantations. pobA proved responsive measure activity. found that stimulating phenolic-acid can prime activity, corresponding species, is potential mechanism cycling forests. Overall, study highlights ecology function associations plant roots capacity degrade phenolics suggest role for specialized effect.

Language: Английский

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