Scenario-Based Modeling of Agricultural Nitrous Oxide Emissions in China DOI Creative Commons

Miaoling Bu,

Weiming Xi,

Yu Wang

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(11), P. 2074 - 2074

Published: Nov. 18, 2024

Agricultural land in China represents a major source of nitrous oxide (N2O) emissions, and as population growth technological advancements drive agricultural intensification, these emissions are projected to increase. A thorough understanding historical trends future dynamics is critical for formulating effective mitigation strategies advancing progress toward the Sustainable Development Goals. This study quantifies N2O across 31 provinces from 2000 2021, employing IPCC coefficient method alongside China’s provincial greenhouse gas inventory guidelines. The spatiotemporal evolution emission intensities was examined, with Stochastic Impacts by Regression on Population, Affluence, Technology (STIRPAT) model employed assess influence population, development, economic growth, energy structure. findings confirm that remains primary significantly higher levels observed eastern coastal regions compared western inland areas. Implementing targeted strategies, such enhanced agricultural- manure-management practices region-specific interventions, imperative effectively curb rising trends.

Language: Английский

Investigation of Nitrogen Conversion Efficiency in Hydrogen-based Autotrophic Nitrate Reduction Reactor DOI Creative Commons
Yufei Zhao, Chun-Yu Lai, He‐Ping Zhao

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Abstract This study investigates the performance of a hydrogen-based membrane biofilm reactor (MBfR) for nitrogen transformation over an extended operational period exceeding 200 days. During monitoring, sustained highly alkaline conditions with pH consistently 11.20, while achieving ammonia conversion efficiency above 60% and maintaining nitrite accumulation rate below 1%. Integrated mass balance calculations microbial community profiling revealed coexistence denitrification dissimilatory nitrate reduction to ammonium (DNRA) pathways within network. A factorial experimental design was implemented hydraulic retention time (HRT) influent concentration as independent variables, generating nine distinct regimes through cross-variable permutations. Subsequent analysis extensive datasets enabled development Response Surface Methodology (RSM) model simulate dynamics. Model validation confirmed statistical reliability predictive accuracy RSM framework. Critical demonstrated that in hydrogen autotrophic system exhibited significant correlation individual variables themselves but showed negligible dependence on their interactive effects. These findings provide novel insights into process optimization strategies theoretical understanding convention.

Language: Английский

Citations

0
Nitrogen reduction with green manure roots return maintains spring wheat yield and alleviates soil N2O emission in saline-alkali agroecosystem DOI Creative Commons

Fangdi Chang,

Hongyuan Zhang,

Peiyi Zhao

et al.

Resources Environment and Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 100202 - 100202

Published: Feb. 1, 2025

Language: Английский

Citations

0
Investigation of nitrogen conversion efficiency in hydrogen-based autotrophic nitrate reduction reactor DOI
Yufei Zhao, Chun-Yu Lai, He‐Ping Zhao

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107536 - 107536

Published: March 22, 2025

Language: Английский

Citations

0
Effect of diverse crop establishment techniques and weed management approaches in rice-chickpea cropping systems on soil attributes DOI Creative Commons

Konathala Kusumavathi,

Smritikana Sarkar,

Mostafa G. Ali

et al.

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: March 24, 2025

Modern agricultural systems demand an integrative approach to address the challenges of food security, resource conservation and sustainability. Balancing demands for increased production with imperative conserve vital resources has never been more pressing. This study investigates dynamic interplay between crop establishment methods weed management practices in cultivation Kharif rice followed by chickpea 2019-2020 2020-2021. Various properties soil physio-chemical biological were significantly influenced different rice-chickpea cropping system. Physical like bulk particle density reported highest transplanted under puddled treatment after harvest (1.44 Mg m− 3 2.53 3) (1.46 2.54 while MWHC was maximum (56%) unpuddled soils than soils. chemical OC (5.19 g kg− 1) (5.23 found Wet-DSR unpuddled. Other available N, P K recorded values Wet-DSR. After each harvest, microbial population biomass carbon, nitrogen phosphorus activity enzymes dehydrogenase, urease phosphatase treatment. Among practices, MWHC, all intercropping Sesbania case mulching paddy straw.The weed-free plots harvest.

Language: Английский

Citations

0
The Response of Soil Organic Nitrogen to the Application of Green Manure Mixed with Phosphate Fertilizer at Manure Microsite on Acidic Soil DOI Creative Commons

Julong Huang,

Jiwang Hong,

Jacobo Arango

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(4), P. 813 - 813

Published: March 26, 2025

The application of green manure (GM), particularly leguminous varieties, demonstrates significant benefits for crop cultivation in acidic soils by enhancing the soil organic nitrogen (No) pool. To maximize these agronomic advantages, it is crucial to implement scientifically grounded strategies. this end, an incubation experiment was conducted investigate content, movement distance, and accumulation N at different distances from GM microsite. Stylosanthes (10 or 40 ton/ha) applied with without phosphate fertilizer (monocalcium phosphate, MCP) 44 kg/ha P, placed on surface cylinders. GM/fertilizer were incubated 14 28 d. results indicated total (TNo) content—including both non-acid-hydrolyzable (NAHNo) acid-hydrolyzable (AHNo) fractions—significantly (p < 0.05) increased microsite after application. influence generally weakened as distance site increased, spatial impact range exhibited modulation three key parameters: period, rates, MCP addition. Subsequent analysis revealed a positive correlation between rate/incubation period No fractions microsite, demonstrating rate-dependent temporal dynamics. They also addition longer but inhibited shorter period. This information will improve efficiency use, addition, decrease environmental load due pollution caused GM.

Language: Английский

Citations

0
Enhancing Sustainability in Indian Rice–Wheat Agroecosystem: a Review and Analysis of Fertilizer Management Practices and Greenhouse Gas (N2O) Emission Mitigation DOI
Raushan Kumar, Bipradeep Mondal, Anurag Linda

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(6)

Published: April 21, 2025

Language: Английский

Citations

0
Scenario-Based Modeling of Agricultural Nitrous Oxide Emissions in China DOI Creative Commons

Miaoling Bu,

Weiming Xi,

Yu Wang

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(11), P. 2074 - 2074

Published: Nov. 18, 2024

Agricultural land in China represents a major source of nitrous oxide (N2O) emissions, and as population growth technological advancements drive agricultural intensification, these emissions are projected to increase. A thorough understanding historical trends future dynamics is critical for formulating effective mitigation strategies advancing progress toward the Sustainable Development Goals. This study quantifies N2O across 31 provinces from 2000 2021, employing IPCC coefficient method alongside China’s provincial greenhouse gas inventory guidelines. The spatiotemporal evolution emission intensities was examined, with Stochastic Impacts by Regression on Population, Affluence, Technology (STIRPAT) model employed assess influence population, development, economic growth, energy structure. findings confirm that remains primary significantly higher levels observed eastern coastal regions compared western inland areas. Implementing targeted strategies, such enhanced agricultural- manure-management practices region-specific interventions, imperative effectively curb rising trends.

Language: Английский

Citations

0