Construction of China's food security evaluation index system and spatiotemporal evolution
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View abstract on PubMed
Summary
This summary is machine-generated.China
Area Of Science
- Agricultural Economics
- Food Security Studies
- Spatial Analysis
Background
- China's food security is critical due to its large population and global impact.
- Existing research lacks a comprehensive evaluation of China's food security system.
- Ensuring food security is vital for China's development and global stability.
Purpose Of The Study
- To construct a comprehensive framework for evaluating food security in China.
- To analyze the spatial correlations and disparities in China's food security.
- To forecast future trends in China's food security.
Main Methods
- Developed a four-dimensional evaluation framework (supply, accessibility, stability, sustainability).
- Employed Moran's Index, LISA maps, Dagum Gini coefficient, and kernel density estimation for spatial analysis.
- Utilized the Exponential Smoothing (ETS) model for trend forecasting.
Main Results
- The composite food security score peaked in 2003 and declined sharply after 2019.
- Spatial analysis revealed high-high clustering in key agricultural regions and low-low clustering elsewhere.
- Disparities in food security are expanding, with inter-group differences becoming more prominent.
Conclusions
- China's food security faces significant risks of decline in the next decade, exacerbated by the pandemic.
- The study provides an early warning system for policymakers.
- Addresses critical research gaps in understanding and managing national food security.
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