Cited by Microbial biomass stoichiometry and proportion of Fe organic complexes separately shape the heterogeneity of mixotrophic denitrification and net N2O sinks in iron-carbon amended ecological ditch

Micro-/nanobubble oxygenation irrigation enhances soil phosphorus availability and yield by altering soil bacterial community abundance and core microbial populations DOI

Qingyong Bian,

Zhiduo Dong,

Yupeng Zhao

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Feb. 10, 2025

Micro-/nanobubble oxygenation irrigation, as a novel irrigation technique, has been widely utilized to enhance soil phosphorus availability and maize yield. Nevertheless, currently, most of the studies remain unclear about precise mechanism through which micro-/nanobubble improves Therefore, we established two methods, conventional (CF) (MB), investigate combined effects on enzyme activity, microbial communities, in rhizosphere maize.The results showed that compared CF treatment, MB treatment significantly increased available content alkaline phosphatase activity by 21.3% 15.4%, respectively. Furthermore, influenced bacterial diversity but did not considerably affect fungal diversity. Specifically, regulated community structure altering relative abundances phylum Firmicutes phyla Mucoromycota, Chytridiomycota, Basidiomycota. In addition, reduced complexity network while increasing interaction density among species. Meanwhile, enhanced network. Structural equation modeling indicated primarily promoted regulating diversity, thereby enhancing availability. conclusion, application enhances phosphatasein modulating within rhizosphere, facilitating maize.

Language: Английский

Citations

Combined effects of acidification and warming on soil denitrification and microbial community DOI

Peiyuan Xu,

Mengke Gao, Yuchen Li

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 2, 2025

In light of the challenges posed by contemporary global warming and soil acidification, respective effects pH temperature on microbiome functions have been explored. However, combined influence acidification denitrification active microbial communities are still unclear. Here, we conducted a microcosm experiment to investigate influences increasing microbes such as bacteria eukaryotic microbes. Denitrification rate in were detected using C2H2 inhibition method. The results showed that Shannon index bacterial exhibited significant enhancement response whereas their community patterns predominantly shaped pH. For micro-eukaryotic community, emerged main driver variations α-diversity, with MT group exhibiting significantly lower indices compared LT HT groups. Both exerted effect patterns. Additionally, was crucial factor influencing rates, negative correlation between within range 4.32-7.46 across all temperatures this study. Our findings highlighted impacts rates under warming, which provided an important scientific basis for agricultural production management environmental protection context climate warming.

Language: Английский

Citations

Extreme Rainfall Amplified the Stimulatory Effects of Soil Carbon Availability on N₂O Emissions DOI

Zengming Chen, Nan Zhang, Ye Li

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(4)

Published: April 1, 2025

Ongoing climate change is predicted to increase the frequency and intensity of extreme rainfall, which will dramatically alter soil nitrous oxide (N2O) emissions, especially changes in organic carbon (SOC) due anthropogenic management. However, our ability predict this effect limited owing a dearth research. Therefore, we selected two croplands Northeast China with same quantity but contrasting availability SOC explore situ dynamics N2O fluxes N-cycling microbes through 2-year field experiment production pathways by laboratory 15N-tracing experiment. In normal rainfall year, high (HCA) low (LCA) emitted 0.66 0.25 kg N2O-N ha-1 without N-fertilization 2.03 1.51 N-fertilization, respectively. record-breaking wet multiple heavy events caused water supersaturation low-lying HCA cropland over 2 months. Consequently, background emissions increased 508% compared N-induced emission factor from 0.77% 2.24%. Soil dissolved (DOC) was identified as primary driver larger facilitated denitrification fueling nirS- nirK-denitrifiers metabolism. Furthermore, greater N substrate supply via faster mineralization-nitrification coupling process promoted contribution autotrophic nitrification cropland. The pulses soils during waterlogging period were derived stimulated denitrification, dominated (> 90%). Simultaneously, C enhanced nitrate produced archaeal nitrification, leading an nirS/nosZII ratio that fostered incomplete denitrification. Overall, findings highlight importance avoiding amendment exogenous materials lability, particularly under extremes, eliminate potential positive feedback management on inducing emissions.

Language: Английский

Citations

Straw Incorporation Mitigating Fertiliser‐Induced Nitrous Oxide Emissions in Intensively Managed Protected Vegetable Soils DOI

Wenchao Cao, Yajing Wang, Xiaomin Sun

et al.

Soil Use and Management, Journal Year: 2025, Volume and Issue: 41(2)

Published: April 1, 2025

ABSTRACT The impact of straw incorporation on nitrous oxide (N 2 O) emissions has long been a research focus. However, N O from protected vegetable soils with and their response to increased nitrogen (N) input are not well understood. To address this knowledge gap, greenhouse without 6‐year were studied in laboratory experiment aerobic incubations. Urea‐N solutions applied achieve contents 0, 20, 40, 80, 120 mg urea‐N kg −1 soil. Soil O, carbon dioxide (CO ) oxygen (O dynamics monitored using robotized incubation system, while ammonium (), nitrite nitrate () measured. Straw significantly reduced decreased emission fluxes. Cumulative exponentially rising rates, but lowered mean cumulative fertiliser‐induced factors at all rates. CO linearly elevated average fluxes, regardless addition. also accelerated depletion across content emerged as the most important predictor irrespective incorporation. findings show that decreases accumulation mitigates intensively managed soils. This study provides sustainable agricultural management approach balances soil fertility enhancement gas reduction.

Language: Английский

Citations

Dynamics of nitrogen mineralization and nitrogen cycling functional genes in response to soil pore size distribution DOI

Danni Li,

Yi Li, Shuihong Yao

et al.

European Journal of Soil Biology, Journal Year: 2024, Volume and Issue: 123, P. 103692 - 103692

Published: Nov. 6, 2024

Language: Английский

Citations

Significant increases in nitrous oxide emissions under simulated extreme rainfall events and straw amendments from agricultural soil DOI

Xiaogang Li, Rui Wang,

Yanling Du

et al.

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 246, P. 106361 - 106361

Published: Nov. 14, 2024

Language: Английский

Citations

Air injection in paddy soil reduces N2O and NH3 emissions and regulates the nitrogen cycle DOI

Jichao Tang,

Quanyi Hu, Chengfang Li

et al.

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 246, P. 106329 - 106329

Published: Oct. 22, 2024

Language: Английский

Citations

Bioaugmentation Strategy for Mitigating Pollutant Gas Emissions in Food Waste Composting Using Fermented Mixtures DOI

Anqi Wang,

Jingjing Xue,

Bo Pang

et al.

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: unknown, P. 103919 - 103919

Published: Nov. 1, 2024

Language: Английский

Citations

Microbial biomass stoichiometry and proportion of Fe organic complexes separately shape the heterogeneity of mixotrophic denitrification and net N2O sinks in iron-carbon amended ecological ditch DOI

Bi–Ni Jiang,

Yingying Zhang, Yan Wang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 272, P. 122945 - 122945

Published: Dec. 10, 2024

Language: Английский

Citations