Spatial pattern of cultivated land fragmentation in mainland China: Characteristics, dominant factors, and countermeasures

Land Use Policy, Journal Year: 2024, Volume and Issue: 139, P. 107070 - 107070

Published: Jan. 26, 2024

Systematically recognizing spatial patterns and driving factors of cultivated land fragmentation is great significance for the exploration locally appropriate path to relieve fragmentation. This study aims estimate density, mean patch size area-weighted shape index respectively indicate characteristics from three dimensions, namely, natural resource endowment, partition, convenience utilization. The regional leading are also analyzed. results demonstrate that distribution density higher in Northern regions compared with those southern regions. significant positive correlation between found be universal across nearly all cities, exceeding differences terrain, elevation, climate, soil, social economic condition. For cities part China, regular partitioned smaller blocks irregular ones; alternatively, intensive meticulous farming under small-scale agricultural operation leads clusters low - index. Random forest model explains impact on fragmentation, an explanatory power ranging 66% 95%. terrain factor emerges as primary driver negatively affecting density. Gross domestic product dominant a (p < 0.01) negative climatic zones. Terrain, gross population most important Rural development degree influences greatly instructive at national scale exploring barriers impede regionally scaled use.

Language: Английский

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Beyond the land quantity: Rethinking the role of land quality in agriculture from the efficiency perspective

Socio-Economic Planning Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 102151 - 102151

Published: Jan. 1, 2025

Language: Английский

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Evaluation and driving force analysis of the water-energy‑carbon nexus in agricultural trade for RCEP countries

Applied Energy, Journal Year: 2023, Volume and Issue: 353, P. 122143 - 122143

Published: Nov. 6, 2023

Language: Английский

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Does multi-goal policy affect agricultural land efficiency? A quasi-natural experiment based on the natural resource conservation and intensification pilot scheme

Applied Geography, Journal Year: 2023, Volume and Issue: 161, P. 103141 - 103141

Published: Nov. 2, 2023

Language: Английский

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Spatio-temporal changes and hydrological forces of wetland landscape pattern in the Yellow River Delta during 1986–2022

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(3)

Published: Feb. 19, 2024

Abstract Context Estuarine wetlands provide valuable ecosystem services, but 20–78% of coastal are facing the risk loss by end century. The Yellow River Delta (YRD) wetland, one most productive delta areas in world, has undergone dramatic changes under influence a precipitous drop sediment delivery and runoff, coupled with invasion Spartina alterniflora . Monitoring spatio-temporal patterns, thresholds, drivers change wetland landscapes is critical for sustainable management wetlands. Objectives Generate annual mapping salt marsh vegetation YRD from 1986 to 2022, analyze trends patch area landscape pattern, explain hydrological pattern evolution. Methods We combined Landsat 5‒8 Sentinel-2 images, phenology, remote sensing indices, Random Forest supervised classification map typical YRD. applied piecewise linear regression stepwise multiple assess impact factors on pattern. Results identified three stages evolution 1997 2009 as junctures, including rapid expansion stage, gradual decline bio-invasion stage. In expanded 70%, while ( Phragmites australis ) was reduced 25%. 21% 16%. coverage rapidly, 68-fold increase relative 2009, expanding at an average rate 344 hm 2 per year. Conclusions Areas total tidal flat, were significantly influenced cumulative which together explained 61.5%, 75.7% 63.8% their variation, respectively. Wetland flat increased delivery, runoff had weak negative effect. For , positive effect, whereas Water resources regulation measures should be taken prevent degradation ecosystems, intervention can implemented during seedling stage control

Language: Английский

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Impact of Spatial Evolution of Cropland Pattern on Cropland Suitability in Black Soil Region of Northeast China, 1990–2020

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 172 - 172

Published: Jan. 12, 2025

Agricultural land resources are essential for food production, and thus it is vital to examine the spatiotemporal changes in these their impacts on suitability optimize resource allocation. In this study, we investigated spatial evolution of cropland through use change analysis by utilizing four periods data from 1990 2020 black soil region northeast China (BSRNC). Employing niche theory, developed a cultivability evaluation model tailored BSRNC, which was used assess impact patterns over past 30 years suitability. Our key findings as follows: (1) Cropland have generally tended expand with an increase 7.16 × 103 km2 cultivated area northeastward shift center 52.94 km, indicating significant configuration land. (2) The region’s cultivable were substantial, covering 694.06 km2, or 55.78% total area, notable variability, influenced regional climate topography. (3) has slightly improved, shown 0.10 index, but declining trend observed after 2000. provide valuable insights help accurately productivity BSRNC facilitate sustainable conservation soil.

Language: Английский

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Economy-energy-environment nexus: the potential of agricultural value-added toward achieving China’s dream of carbon neutrality

Carbon Research, Journal Year: 2023, Volume and Issue: 2(1)

Published: Nov. 14, 2023

Abstract Agriculture is one of the major sources global emissions that cause climate change while agricultural value added helps to boost economy in developing countries like China. Therefore, this study aims investigate long- and short-term influences added, economic growth (GDP), energy use on carbon dioxide (CO 2 ) The autoregressive distributed lag (ARDL) method was used by using annual time series data from 1990 2021. empirical outcomes revealed a 1% increase would cut CO 1.37% long-run 0.65% short-run. However, found both GDP consumption have positive statistically significant effect emissions. Furthermore, an inverted U-shaped association between environmental pollution discovered spotting coefficient negative squared, which proved validity Kuznets curve (EKC) hypothesis. robustness ARDL verified fully modified ordinary least squares (FMOLS), dynamic (DOLS), canonical cointegration regression (CCR) approaches. This offers comprehensive set policy recommendations aimed at enhancing These suggestions focus promotion climate-smart agriculture, integration renewable production, adoption advanced technologies within systems. Implementing these measures contribute achievement China’s goal neutrality. Graphical

Language: Английский

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Coupling input and output intensity to explore the sustainable agriculture intensification path in mainland China

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 442, P. 140827 - 140827

Published: Jan. 30, 2024

Language: Английский

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Influencing factors and the establishment of a basin ecological compensation mechanism from the perspective of water conservation: A case study of the upper Yangtze River in China

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 456, P. 142332 - 142332

Published: April 27, 2024

Language: Английский

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Identifying and monitoring of abandoned farmland in key agricultural production areas on the Qinghai‒Tibet Plateau: A case study of the Huangshui Basin

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 354, P. 120380 - 120380

Published: Feb. 24, 2024

Language: Английский

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