A Warmer and Wetter World Would Aggravate GHG Emissions Intensity in China's Cropland DOI Creative Commons
Jingting Zhang, Hanqin Tian, Xiaoyong Li

et al.

Earth s Future, Journal Year: 2024, Volume and Issue: 12(2)

Published: Feb. 1, 2024

Abstract Many agricultural regions in China are likely to become appreciably wetter or drier as the global climate warming increases. However, impact of these change patterns on intensity soil greenhouse gas (GHG) emissions (GHGI, GHG per unit crop yield) has not yet been rigorously assessed. By integrating an improved ecosystem model and a meta‐analysis multiple field studies, we found that is expected cause 20.0% yield loss, while stimulating by 12.2% between 2061 2090 China's regions. A wetter‐warmer (WW) would adversely equal basis lead 1.8‐fold‐ increase relative those drier‐warmer (DW) climate. Without water limitation/excess, extreme heat (an more than 1.5°C average temperature) during growing season amplify 15.7% simultaneously elevating 42.5% compared below 1.5°C. when coupled with drought, it aggravate loss 61.8% without reducing corresponding emissions. Furthermore, emission WW 22.6% DW Under this intense climate, use nitrogen fertilizer 37.9% necessarily gaining advantage These findings suggest threat world efforts reduce may be great even greater world.

Language: Английский

Nitrogen and Water Additions Affect N2O Dynamics in Temperate Steppe by Regulating Soil Matrix and Microbial Abundance DOI Creative Commons
Siyu Ren, Yinghui Liu,

Pei He

et al.

Agriculture, Journal Year: 2025, Volume and Issue: 15(3), P. 283 - 283

Published: Jan. 28, 2025

Elucidating the effects of nitrogen and water addition on N2O dynamics is critical, as a key driver climate change (including deposition shifting precipitation patterns) stratospheric ozone depletion. The temperate steppe notable natural source this potent greenhouse gas. This study uses field observations soil sampling to investigate seasonal pattern emissions in Inner Mongolia mechanism by which additions, two different types factors, alter pattern. It explores regulatory roles environmental physicochemical properties, microbial community structure, abundance functional genes influencing emissions. These results indicate that emission mechanisms vary throughout growing season. Nitrogen application consistently increase In contrast, suppresses during early season but promotes peak late seasons. season, primarily increased dissolved organic (DON) levels, provided matrix for nitrification promoted Meanwhile, moisture, enhancing nosZ (nitrous oxide reductase) gene while reducing nitrate (NO3−-N) well AOA (ammonia-oxidizing archaea) amoA AOB bacteria) expression, thereby lowering During nitrogen’s role adjusting pH ammonium (NH4+-N), along with amplifying amoA, spiked Water affects balance between denitrification altering aerobic anaerobic conditions, ultimately increasing inhibiting nosZ. As waned decreased, temperature also became Structural equation modeling reveals impacts flux variations through are more significant research uncovers innovative insights into how additions differently impact across various stages steppe, providing scientific basis predicting managing within these ecosystems.

Language: Английский

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Reforestation practices have varied the resilience of nosZ-type denitrifier communities: A 40-year soil chronosequence study DOI

Haoyan Xiao,

Hanxia Yu,

Juntao Wang

et al.

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 206, P. 105877 - 105877

Published: Feb. 1, 2025

Language: Английский

Citations

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Short-term effect of grazing on net ecosystem exchange and fluxes of greenhouse gases in C3 and C4 pastures during the growing season DOI Creative Commons
Milad Bagheri Shirvan, Feike A. Dijkstra, L. A. González

et al.

Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 383, P. 109538 - 109538

Published: Feb. 6, 2025

Language: Английский

Citations

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Biochar modified water-retaining agent polyacrylamide reduced NO but not N2O emissions from Camellia oleifera plantation soil DOI Creative Commons
Shuli Wang,

Yadi Yu,

Xi Zhang

et al.

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 227, P. 120838 - 120838

Published: March 19, 2025

Language: Английский

Citations

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Nitrification inhibitors reduce N2O emissions from Mollisols by potentially targeting Nitrosospira cluster 3a and denitrifiers DOI Creative Commons

Yanqiang Cao,

Yulian Liu, Zengming Chen

et al.

Geoderma, Journal Year: 2025, Volume and Issue: 456, P. 117266 - 117266

Published: March 23, 2025

Language: Английский

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Increasing phosphorus availability reduces grassland soil N2O emission: Plants and microbes move from mutualism to self-reliance DOI
Jirui Gong,

Shangpeng Zhang,

Ying Li

et al.

Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 389, P. 109695 - 109695

Published: April 14, 2025

Language: Английский

Citations

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Nitrous oxide emissions as affected by nitrogen rates in irrigated sugar beet DOI Creative Commons
Deepak Ghimire, Aaron Lee M. Daigh, Bijesh Maharjan

et al.

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Nitrous oxide (N 2 O) is a major greenhouse gas and its emissions from soil are largely driven by fertilizer nitrogen (N). Sugar beet ( Beta vulgaris L.) an economically important crop; however, there limited studies reporting N O in as affected fertilization. The 2‐year (2022–2023) experiment was conducted Nebraska, to evaluate the effects of different rates on root yield, estimated recoverable sugar (ERS), emissions, emission factors (EFs). treatments were 0%, 50%, 80%, 100%, 125% (also, 150% 2023) current University Nebraska recommended based yield goal spring test N. In 2023, at ≥80% had higher ERS than control. Daily fluxes increased exponentially during first 3–4 weeks application. Cumulative linearly with both years. Emissions least 50% greater 2023 2022, most likely moisture 2023. EF calculated applied (EF_N) 0.87% 1.48% 2022 respectively. Fertilizer‐induced (EF_fert) 0.71% 1.32% average annual EF_fert (1.02%) very close Intergovernmental Panel Climate Change (IPCC) default 1%, suggesting that could reasonably estimate understudied crops such irrigated beet.

Language: Английский

Citations

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Estimating the Potential Impact of Spatially Uniform Nitrogen Management Policies for Irish Grasslands and Options for Geographical Refinement DOI
Sudipto Bhowmik, Rowan Fealy, David Wall

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

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Fertiliser nitrogen source and the use of nitrification inhibitors are tools to reduce nitrous oxide emissions and improve agronomic performance in temperate grassland DOI Creative Commons
Dumsane Themba Matse, Dominika Król, Karl G. Richards

et al.

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104232 - 104232

Published: April 1, 2025

Language: Английский

Citations

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Monthly Diurnal Variations in Soil N2O Fluxes and Their Environmental Drivers in a Temperate Forest in Northeastern China: Insights from Continuous Automated Monitoring DOI Open Access
Chuying Guo, Leiming Zhang, Shenggong Li

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 766 - 766

Published: April 30, 2025

Global warming, driven by increased greenhouse gas emissions, is a critical global concern. However, long-term trends in emissions remain poorly understood due to limited year-round data. The automated chamber method was used for continuous monitoring of soil N2O fluxes mixed forest Northeast China’s Changbai Mountains, analyzing monthly diurnal patterns and their relationships with temperature (Ts) volumetric water content (VWC). results revealed significant seasonal variations, peak at 11:00 during the growing season (May–October) elevated nighttime winter (March, April, November, December). optimal sampling time 14:00, closely reflecting daily mean fluxes. Soil Ts VWC were key drivers, variability effects: showed no relationship January but strong correlations February March. Q10 values ranged from 0.4 7.2 (mean = 2.5), indicating high-temperature sensitivity. effects complex, moderate promoting denitrification excessive suppressing microbial activity. These findings provide insights optimizing improving emission estimates.

Language: Английский

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