Fertilizing-induced changes in the nitrifying microbiota associated with soil nitrification and crop yield

The Science of The Total Environment, Год журнала: 2022, Номер 841, С. 156752 - 156752

Опубликована: Июнь 16, 2022

Язык: Английский

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Ammonia oxidizing bacteria dominate soil nitrification under different fertilization regimes in black soils of northeast China

European Journal of Soil Biology, Год журнала: 2022, Номер 111, С. 103410 - 103410

Опубликована: Май 11, 2022

Язык: Английский

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Topography modulates effects of nitrogen deposition on soil nitrogen transformations by impacting soil properties in a subtropical forest

Geoderma, Год журнала: 2023, Номер 432, С. 116381 - 116381

Опубликована: Фев. 14, 2023

Soil nitrogen (N) transformations play key roles in ecosystem productivity and other functions of terrestrial ecosystems via regulating soil N availability. Although the effects elevated atmospheric deposition on have been intensively investigated, it remains unclear whether are mediated by topography, which impacts multiple abiotic biotic properties. Here, we conducted an addition experiment consisting three treatments: control (0 kg ha−1 yr−1), moderate (50 high (100 yr−1) valley slope, respectively, a subtropical karst forest. Under control, protein depolymerization, amino acid uptake, nitrification dissimilatory nitrate reduction to ammonium (DNRA) rates were significantly higher slope than attributed dissolved organic carbon, total pH slope. Nitrogen increased mineralization, DNRA through alleviating microbial carbon limitation valley, but decreased mineralization DRNA enhancing phosphorus limitations The increase transformations, use efficiency (NUE) biomass lowered turnover time resulted 94 % necromass under addition. However, NUE led 33 decrease due enhanced destabilization Our results suggest that responses may be hence highlight importance incorporating topography into Earth system models better predict dynamics forest context deposition.

Язык: Английский

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Investigating microbial and environmental drivers of nitrification in alkaline forest soil

ISME Communications, Год журнала: 2024, Номер 4(1)

Опубликована: Янв. 1, 2024

Abstract Ammonia oxidation is a key step in the biogeochemical cycling of nitrogen, and soils are important ecosystems for nitrogen flux globally. Approximately 25% world’s alkaline. While nitrification has been studied more extensively agricultural alkaline soils, less known about natural, unfertilized soils. In this study, microorganisms responsible ammonia several environmental factors (season, temperature, concentration, moisture content) to affect were an forest soil with pH ranging from 8.36 8.77. Ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea, comammox present, AOB belonging genera Nitrosospira Nitrosomonas, originally comprising <0.01% total bacterial community, responded rapidly addition soil. No significant difference was observed rates between seasons, but there situ field laboratory microcosms. Surprisingly, took place under many tested conditions, no detectable increase abundance any recognizable group oxidizers. This study raises questions role low-abundance microbial processes situations where zero or very low growth coincides metabolic activity. addition, provides insights into supports previous studies, which found that play supplemented ammonia, including ecosystems.

Язык: Английский

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Soil depth and fertilization had more influence on comammox Nitrospira and ammonia-oxidizing archaea communities than ammonia-oxidizing bacteria in an acidic paddy soil

Applied Soil Ecology, Год журнала: 2025, Номер 206, С. 105885 - 105885

Опубликована: Янв. 13, 2025

Язык: Английский

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