Effects of intercropping on soil greenhouse gas emissions - A global meta-analysis

The Science of The Total Environment, Год журнала: 2024, Номер 918, С. 170632 - 170632

Опубликована: Фев. 2, 2024

Язык: Английский

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Temperature Sensitivity Response of Soil Enzyme Activity to Simulated Climate Change at Growth Stages of Winter Wheat

Agronomy, Год журнала: 2025, Номер 15(1), С. 106 - 106

Опубликована: Янв. 3, 2025

In recent years, research on farmland soil stability has gained attention due to climate change. Studying the thermal of enzymes at key crop growth stages in response increased CO2, drought, and warming is critical for evaluating change impacts production ecosystem stability. Despite its importance, nutrient cycling remains limited. A pot experiment was conducted using winter wheat (Triticum aestivum L.), one China’s main grain crops, as object. An artificial chamber used simulate four (jointing stage, flowering filling maturity stage). Different levels CO2 concentration (400 800 μmol mol−1), temperature conditions (current 4 °C higher), water (80% 60% field capacity) were set, their interactions examined. By analyzing sensitivity (Q10) enzyme activities related carbon (C), nitrogen (N), phosphorous (P) cycles different treatments, results showed that doubling decreased C cycle Q10 N P significantly. Additionally, with increasing temperature, while other inconsistent responses. Mild drought significantly N-cycling early stage P-cycling each but mature stage. The interaction between exhibited a single-factor superimposed effect reducing Q10. Moreover, offset mild stress Above-ground biomass, total dissolved nitrogen, nitrate identified primary factors influencing C, N, This study great significance exploring effects global food mechanism functional under future

Язык: Английский

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Optimizing crop rotation increases soil carbon and reduces GHG emissions without sacrificing yields

Agriculture Ecosystems & Environment, Год журнала: 2022, Номер 342, С. 108220 - 108220

Опубликована: Окт. 27, 2022

Язык: Английский

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Optimizing irrigation management sustained grain yield, crop water productivity, and mitigated greenhouse gas emissions from the winter wheat field in North China Plain

Agricultural Water Management, Год журнала: 2023, Номер 290, С. 108599 - 108599

Опубликована: Ноя. 21, 2023

Climate change caused by increasing greenhouse gas (GHG) emissions has led to frequent extreme weather events, which seriously threaten sustainable agricultural production. Therefore, it is essential optimize proper irrigation management improve the grain yield, crop water productivity (WPc), economic (EWPc), and lower global warming potential (GWP) GWP Intensity (GWPI). The effect of scheduling methods on GHG remains largely unknown, even though this knowledge management. To address gap, a field experiment was carried out in North China Plain (NCP) for three winter wheat seasons measure influence different WPc, EWPc, GWP, GWPI. Irrigation including 50%, 60%, 70% capacity (FC) were kept main plots methods, sprinkler, drip, flood sub-plots. results revealed that relative sprinkler at 60% FC, drip FC significantly (p < 0.05) improved yield 4.89–7.52%, WPc 1.0–5.4%, EWPc 1.1–5.49%, 7.47–9.34%, GWPI 10.92–15.23%. Compared with increased 5.34–6.81%, 5.65–15.1%, 5.73–15.12%, 10.36–15.16%, 16.22–19.40%. Technique order preference similarity an ideal solution (TOPSIS) presented compared scheduling, provides best optimal balance combined suggested sustained mitigated NCP.

Язык: Английский

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Effects of different irrigation methods on regional climate in North China Plain: A modeling study

Agricultural and Forest Meteorology, Год журнала: 2023, Номер 342, С. 109728 - 109728

Опубликована: Сен. 26, 2023

Agricultural irrigation is important in boosting crop yields especially water-stressed regions, but little known about the distinct climatic effects induced by different methods, particularly North China Plain (NCP) where applied extensively. Here we examine of flood (FI), sprinkler (SI) and drip (DI) over NCP during growing season using dynamic schemes implemented into a coupled land-atmosphere model. The model generally captures spatial distribution surface temperature, relative humidity precipitation. changes regional average temperature FI, SI DI are –0.43, –0.53 –0.19 °C, respectively. relatively larger cooling effect for than that FI associated with enhanced cloud formation. By shifting energy balance, cause wet, cool, cloudy shallow planetary boundary layer, while exhibits smallest indeed inhibits increases convective available potential precipitable water enhance precipitation 0.8–1.2 mm d–1. In contrast, reduced due to within leads warmer drier from June August, which likely upper-level geopotential heights turn suppresses series climate feedbacks. hydrometeorological interactions feedbacks arising methods related rates, frequencies approaches application. While recognized as most water-saving method, it also generates least among three thus less effective safeguarding grain against rising temperatures. Our study emphasizes need more sustainable adaptive ensure food security, conservation stability face change.

Язык: Английский

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Multivariate Controls of Water–Carbon Coupling Relationship Under Various Land Use Types in the Thick Loess Deposits

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

ABSTRACT Prior studies have conducted extensive investigations of the water–carbon coupling relationship for aboveground vegetation and shallow soils, but characteristics multivariate controls in deep soils not been fully explored. This has important implications better understanding water carbon cycles ecosystems. In this study, we attempted to examine 18 m profiles under farmland (F), grassland (G), willow (SP), poplar (P) China's Loess Plateau. Specially, at diverse depths scales were explored via wavelet analysis. Individually, conversion from F G, SP, P decreased soil storage within 0–15 by 553 (22% F), 557 (22%), 943 mm (38%). Land use change had little impact on organic or inorganic carbon. Even so, poplar, compared with willow, resulted higher vertical variations Furthermore, land increased coherence between whole layer. comparison F, which was dominated retention, exhibited dominant sequestration. The reduced root‐mean‐square deviation 0.29 (F) 0.13 6‐ 15‐m layer 0.32 0.20 0‐ 2‐m Sand content electrical conductivity both played negative roles maintaining layers different scales, respectively. study endeavors present a novel viewpoint management, potential enhance ecosystem services water‐limited land‐degradation regions.

Язык: Английский

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Labelling the Carbon Footprint as a Strategic Element of Environmental Assessment of Agricultural Systems

Agricultural Engineering/Inżynieria Rolnicza, Год журнала: 2024, Номер 28(1), С. 235 - 250

Опубликована: Янв. 1, 2024

Abstract The aim of the study was to assess potential use carbon footprint for environmental evaluation agricultural systems. Carbon analysis in agriculture has a strategic dimension terms sustainable food production. Reducing negative impact on climate change is key element many quality management systems and included legislation countries. One challenges calculating lack clear methodologies determination greenhouse gas (GHG) emissions at this stage. Normative documents highlight need consider all areas GHG emissions, but practice, exceedingly difficult due specific characteristics plant production, which takes place under variable conditions related soil type, its properties, chemical composition, climate, production technology. Based review scientific literature, it concluded that studies evaluations technology improvements (implementing actions compensate anthropogenic pressure) should be conducted within an individual system boundary. boundary developed based process map created accordance with guidelines ISO 31000:2018. Most input data used calculations must standardized range parameters dependent natural, geographical, infrastructural location.

Язык: Английский

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Sustainable water and nitrogen optimization to adapt to different temperature variations and rainfall patterns for a trade-off between winter wheat yield and N2O emissions

The Science of The Total Environment, Год журнала: 2022, Номер 854, С. 158822 - 158822

Опубликована: Сен. 15, 2022

Язык: Английский

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High efficiency and low greenhouse gas emissions intensity of maize in drip irrigation under mulch system

Agriculture Ecosystems & Environment, Год журнала: 2023, Номер 346, С. 108344 - 108344

Опубликована: Янв. 23, 2023

Язык: Английский

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Strategies for managing corn crop residue in the context of greenhouse gas emissions

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Май 30, 2024

Food production is one of the most important sources greenhouse gas (GHG) emissions, both in primary and processing logistics chain. The problematic risky optimization environmental effects stage production. This due to significant influence factors related climate soil that are difficult predict. scientific literature offers much information on impact crop residue management, but context for assessing management corn carbon footprint still unclear. effectiveness using organic additives like biochar, compost, or straw, maintain productivity well acknowledged. Information about particular strategies sequestration, quality, yield cultivation currently scarce. research aimed assess potential optimizing through modifications with a focus efficiency indicator being level emissions per functional unit product. A three-year growing experiment was conducted investigate different strategies. technology terms strategy had plants amount GHG emissions. conversion straw biochar its introduction into reduced from unit, despite energy expenditure transport From time perspective, beneficial effect addition size commercial observed. In variants nitrogen fertilization, no reduction yields confirmed hypothesis could be useful material slow-acting fertilizers.

Язык: Английский

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