Interactions between iron mineral and low-molecular-weight organic acids accelerated nitrogen conversion and release in lake sediments

Water Research, Год журнала: 2025, Номер 275, С. 123174 - 123174

Опубликована: Янв. 21, 2025

Язык: Английский

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Microbial communities overwhelm environmental controls in explaining nitrous oxide emission in acidic soils

Soil Biology and Biochemistry, Год журнала: 2024, Номер 194, С. 109453 - 109453

Опубликована: Апрель 29, 2024

Язык: Английский

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Hot or Not? An Evaluation of Methods for Identifying Hot Moments of Nitrous Oxide Emissions From Soils

Journal of Geophysical Research Biogeosciences, Год журнала: 2025, Номер 130(1)

Опубликована: Янв. 1, 2025

Abstract Effectively quantifying hot moments of nitrous oxide (N 2 O) emissions from agricultural soils is critical for managing this potent greenhouse gas. However, we are challenged by a lack standard approaches identifying moments, including (a) determining thresholds above which considered and (b) considering seasonal variation in the magnitude frequency distribution net N O fluxes. We used one year hourly flux measurements 16 autochambers that varied conventionally tilled maize field central Illinois, USA, to compare three identify moment thresholds: deviations (SD) mean, 1.5x interquartile range (IQR), isolation forest (IF) identification anomalous values. also compared these on seasonally subdivided data (early, late, non‐growing seasons) versus whole year. Our analyses revealed IQR method best identified moments. In contrast, using or 4 SD both yielded threshold values too high, IF low, leading missed low fluxes mischaracterized as respectively. Furthermore, subdividing set not only facilitated smaller late‐ seasons when were generally but it increased early growing season larger. Consequently, methods evaluated here, recommend sets

Язык: Английский

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Single-cell genomics of single soil aggregates: methodological assessment and potential implications with a focus on nitrogen metabolism

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Янв. 11, 2025

Abstract Soil particles in plant rooting zone are largely clustered to form complex porous structural unit called aggregates where highly diverse microbes coexist and drive biogeochemical cycling. The complete extraction of microbial cells DNA from soil is a substantial task as certain exhibit strong adhesion surfaces and/or inhabit deep within aggregates. Yet, the degree aggregate dispersion efficacy have rarely been examined, thus adequate cell method remain unclear. We aimed develop an optimal for single-cell genomics (SCG) analysis single by focusing on water-stable macroaggregates (diameter: 5.6-8.2 mm) isolated topsoil cultivated Acrisol. Using same six individual aggregates, we performed both SCG sequencing amplicon analysis. While bead-vortexing sonication methods improved extractability bacterial compared previous studies, latter yielded higher number more former. analyses nitrogen-cycling exopolysaccharides-related genes suggested that sonication-assisted led greater recovery strongly attached inhabited subunits were physically stable (e.g., core). Further revealed all held intact having (i.e., potentials) convert nitrate into possible nitrogen forms while some low-abundance showed inter-aggregate heterogeneity. In addition, studied overall similarity pore characteristics, phylum-level composition, functional redundancy. Together, these results suggest may act show potential useful experimental ecology. Our study also conventional employed not be optimal. current findings underscore necessity advance methodologies, thereby facilitating comprehensive understanding diversity functioning environments.

Язык: Английский

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Lei bamboo (Phyllostachys praecox) shows greater sensitivity to salt stress than to hypoxia stress: insights from plant physiology, metabolome and soil microbiome

Plant and Soil, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Язык: Английский

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Responses of nitrogen conversion, related enzyme activity, and microbial community to soil hypoxia in a simulated Phyllostachys praecox forest with mulching

Journal of Soils and Sediments, Год журнала: 2025, Номер unknown

Опубликована: Март 30, 2025

Язык: Английский

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Ferrous salts accelerate humification and reduced carbon emissions during the co-composting of hoggery slurry and wheat husks: New insights into their biotic and abiotic functions and mechanisms

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162570 - 162570

Опубликована: Апрель 1, 2025

Язык: Английский

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Insight into N2O emission and denitrifier communities under different aeration intensities in composting of cattle manure from perspective of multi-factor interaction analysis

The Science of The Total Environment, Год журнала: 2024, Номер 931, С. 172936 - 172936

Опубликована: Май 1, 2024

Язык: Английский

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Heavy rainfall stimulates more N2O emissions from wheat fields during basal and overwintering fertilization phases

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 376, С. 109227 - 109227

Опубликована: Авг. 7, 2024

Язык: Английский

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The effect of aeration and irrigation on the improvement of soil environment and yield in dryland maize

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Окт. 18, 2024

The aim of this study was to examine the effect long-term aerated seepage irrigation technology on soil fertility changes and maize yield under continuous cropping system in red loam soil, explain mechanism increase technology, which can provide theoretical basis for crop quality improvement (AI) technology. Therefore, research conducted four field seasons 2020–2023 at National Soil Quality Observation Experimental Station, Zhanjiang, China. aeration, fertility, root growth, physiological traits, indicators were evaluated by conventional underground drip (CK) AI. Our results showed that AI treatment significantly improved aeration fertility. Increases oxygen content, respiration rate, bacterial biomass, urease activity observed, corresponding increases from 3.08% 21.34%, 1.90% 24.71%, 26.37% 0.09%, 12.35% 100.96%, respectively. increased year year. Based improvements length, surface area, dry weight enhanced 15.56% 53.79%, 30.13% 62.31%, 19.23% 35.64% ( p < 0.05) compared CK group. In addition, agronomic traits characteristics performance; particular, over 1.16% 14.42% identified treatment. Further analysis using a structural equation model (SEM) demonstrated promotes enhancing As result, could be indirectly

Язык: Английский

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