Long-Term Annual Changes in Agricultural Carbon Footprints and Associated Driving Factors in China from 2000 to 2020

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 453 - 453

Published: Feb. 13, 2025

China is one of the world’s largest agricultural producers, and its carbon footprint (CF) a major contributor to global warming. However, long-term annual changes in CF underlying driving factors remain largely unknown, compromising scientific basis for effective reduction sustainable agriculture management. To this end, we used life cycle assessment (LCA) method statistical data calculate CFs China. We then adopted linear regression slope Moran’s I analyze temporal trends spatial clustering characteristics revealed correlations between main drivers CFs. The results showed that total (TCF) farmland-averaged (FCF) crop production both increased first decreased from 2000 2020, with turning point 2015. Overall, TCF by 6.82% (3022.16 × 104 t CO2 eq), while FCF slightly 0.004% (0.01 eq/ha). Both heterogeneity, high values east low west, components has weakened over time. Fertilizer (39.26%) paddy (27.38%) were contributors TCF. Driver analysis found grain yield was positively correlated most provinces, indicating continuous increase brought greater pressure on emission Agricultural stakeholders should optimize planting structures patterns improve resource-use efficiencies through technological management innovation adapt these threats achieve low-carbon agriculture. findings our research can aid spatiotemporal estimation driver provide decision-making support practices.

Language: Английский

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Exploring the Impact of Rural Labor Mobility on Cultivated Land Green Utilization Efficiency: Case Study of the Karst Region of Southwest China

Agriculture, Journal Year: 2025, Volume and Issue: 15(3), P. 226 - 226

Published: Jan. 21, 2025

The unique Karst landforms in Southwest China led to fragile soil structures and erosion, compounded by the large-scale non-agricultural transfer of rural labor force. This study employed a two-way fixed effects model analyze impact mobility on green utilization efficiency cultivated land, controlling for unobservable individual time-specific factors. Mediation analysis examined how changes planting structure influenced this relationship, considering force heterogeneity. Results revealed U-shaped with initially causing short-term decline but leading long-term increase. mechanism action showed that indirectly affected altering structures; specifically, increased replanting frequency had partial mediating effect (0.158), while “grain-oriented” focus masked (0.067). Additionally, an aging workforce low education levels negatively impacted efficiency, complicating situation region. To enhance it is essential protect migrant farmers’ rights, improve agricultural quality, promote industrial upgrades, adjust structures. These strategies will guide regional agriculture ensure sustainable land resource use.

Language: Английский

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Supply and demand of agricultural water resources under future saline-alkali land improvement

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 314, P. 109503 - 109503

Published: May 1, 2025

Language: Английский

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Impact of irrigation on cropland yield potential and scenario-based optimization in Northeast China

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 314, P. 109522 - 109522

Published: May 6, 2025

Language: Английский

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Multiscale Spatiotemporal Variation Analysis of Regional Water Use Efficiency Based on Multifractals

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(22), P. 4269 - 4269

Published: Nov. 16, 2024

Understanding the complex variations in water use efficiency (WUE) is critical for optimizing agricultural productivity and resource management. Traditional analytical methods often fail to capture nonlinear multiscale inherent WUE, where multifractal theory offers distinct advantages. Given its limited application WUE studies, this paper analyzes spatiotemporal characteristics influencing factors of Anhui Province from 2001 2022 using a multifractal, approach. The results indicated that exhibited significant interannual variation, peaking summer, especially August (2.4552 gC·mm−1·m−2), with monthly average showing an inverted “V” shape. Across different spatial temporal scales, displayed clear characteristics. Temporally, variation fractal features between years was not prominent, while inter-seasonal most during summer. Spatially, patterns were observed hilly mountainous areas, particularly regions brown soil distribution. Rainfall identified as primary natural driver regional changes. This study aims promote sustainable resources ensuring stability production within protected farmlands.

Language: Английский

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A Study on the Spatial, Structural, and Cultural Differentiation of Traditional Villages in Western Henan Using Geographic Detectors and ArcGIS

Sustainability, Journal Year: 2024, Volume and Issue: 16(23), P. 10188 - 10188

Published: Nov. 21, 2024

Traditional villages are an important cultural heritage left by China’s agrarian civilization and serve as a testament to the historical development of Chinese nation. The study spatial differentiation in traditional is significant for their future preservation development. Existing studies predominantly adopt macro perspective, focusing on large-scale regions, lack investigations from micro perspective medium- small-scale areas. This utilizes ArcGIS 10.8 analysis, multi-factor geographic detectors, geography zoning methods explore structure 305 western Henan. results indicate that distribution this region significantly clustered uneven, primarily concentrated specific districts Sanmenxia Luoyang. Per capita GDP distance roads negatively correlated with settlements, reflecting positive impact lower economic levels remote locations village preservation. layout Henan exhibits clustering patterns, characterized distinct residential forms. study, through analysis characteristics influencing factors region, provides new formation evolution villages, revealing research offer directional guidance conservation strategies provide decision-making reference practices similar regions.

Language: Английский

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