Effects of Different Straw Return Methods on Farmland Carbon Footprint and Water Footprint

Agriculture, Journal Year: 2024, Volume and Issue: 15(1), P. 73 - 73

Published: Dec. 31, 2024

Straw return is an effective agricultural measure that influences the ecological environment. In context of global climate change and need for sustainable development, it essential to explore how straw methods affect This study conducted a two-year field experiment comparing different treatments: no (CK), directly (SR), returned in deep ditches (ISR). The results showed SR treatment increased soil dissolved organic carbon (DOC) (21.7~25.8%) nitrogen (DON) (8.5~43.8%) compared CK. ISR significantly enhanced DOC (13.1~33.0%) DON (14.2~50.8%). Both treatments also improved maize growth indicators, such as leaf area index (LAI), stem biomass, grain biomass. terms environmental effects, reduced N2O emissions lowered footprint (CF) water (WF). Specifically, yield-scale (CFy) (WFy) were by 12.0% 9.1%, respectively, 2023. Correlation analysis revealed key factors these benefits. Furthermore, reduction WF CF was closely linked SWC higher biomass all organs. Therefore, we demonstrated not only promotes accumulation but effectively mitigates consumption on farmland. It may be related boosting levels. Overall, method holds promise supporting farming practices.

Language: Английский

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Straw Return or No Tillage? Comprehensive Meta-Analysis Based on Soil Organic Carbon Contents, Carbon Emissions, and Crop Yields in China

Agronomy, Journal Year: 2024, Volume and Issue: 14(10), P. 2263 - 2263

Published: Oct. 1, 2024

Conservation tillage methods, including straw return (SR) and no (NT), are widely used to improve the soil organic carbon (SOC) content crop yield. However, applying SR or NT separately has become a common practice for farmers producing different crops those in regions. Evaluating effects of on SOC content, emissions, yield important guiding correct application conservation promoting sustainable agricultural development. Therefore, we conducted meta-analysis based 1014 sets data obtained China assess Compared with return, increased by 10% 8.6%, respectively, but significant impact emissions. conventional tillage, 2.9% reduced emissions 18% 3.9%, respectively. We also found that combined had an additive effect, where combination improved more than alone. If alone, specific climatic conditions, characteristics, field management strategies need be considered maximize SOC. In particular, should limited hydrothermal conditions (low temperature low precipitation) areas rice–wheat rotation is implemented. can under any climate it effectively increase continuous wheat cropping areas.

Language: Английский

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A rapid increase of soil organic carbon in paddy fields after applying organic fertilizer with reduced inorganic fertilizer and water-saving irrigation is linked with alterations in the structure and function of soil bacteria

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 379, P. 109353 - 109353

Published: Nov. 1, 2024

Language: Английский

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Different grazing management strategies change greenhouse gas emissions and global warming potential in global grasslands

Geography and sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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Optimizing fertilization rate can maintain the greenhouse gas mitigation effect of no-tillage: A global-scale meta-analysis

Field Crops Research, Journal Year: 2024, Volume and Issue: 322, P. 109720 - 109720

Published: Dec. 24, 2024

Language: Английский

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