Evaluation of Food Security in Different Grain Functional Areas in China Based on the Entropy Weight Extended Matter Element Model.

Reflections on China's food security and land use policy under rapid urbanization

Against the backdrop of global warming, intensifying regional conflicts, deglobalization, and the spread of diseases, global food security is facing severe challenges. Studying the food security situation in China and the United States in depth can provide practical experience for formulating food security policies for countries around the world and promoting global food security governance. On the basis of a meticulous review of the evolving connotations of food security, this study adopts six dimensions-quantity security, quality security, circulation security, economic security, ecological resource security, and policy security-as breakthrough points to construct a framework consisting of food security evaluation indicator system comprising 29 specific indicators. The CRITIC-MEREC-MARCOS model is applied to evaluate the status of food security in China and the United States from 2000 to 2022, while the obstacle degree model (ODM) model is utilized to identify factors impeding food security between the two countries. The results indicate that the level of food security in China has shown slight fluctuations initially, followed by a steady upward trend. The gap with the United States is continuously narrowing. However, significant differences between China and the United States still exist in terms of economic security, ecological resource security, and policy security. Furthermore, due to the limited productivity of agricultural labor, scarcity of water and soil resources, and low efficiency in the use of fertilizers and pesticides, China's food security is subject to economic and environmental constraints. The restrictions imposed by economic security and ecological resource security on China's food security are showing an increasing trend year by year. For the United States, with the obstruction of grain exports and the increasing frequency of drought disasters, the impact of circulation security and ecological resource security on food security is becoming increasingly prominent. In the future, China and the United States should join hands to address challenges, actively promote international cooperation in food security, and drive sustainable development for humanity.

Food security is a vital material foundation for a nation's development and has been a topic of significant concern on the international stage in recent years. With a population exceeding 1.4 billion, China is not only a major producer but also a substantial consumer of food. Ensuring food security in China is not only a top priority for its socio-economic development but also a driving force in maintaining the stability of the global food supply chain and reducing the number of hungry people worldwide. However, a lack of comprehensive research into the Chinese food security system remains. This study addresses this gap by constructing a comprehensive evaluation framework encompassing four dimensions: food supply, accessibility, production stability, and sustainability. Utilizing the Moran's Index and generating LISA (Local Indicators of Spatial Association) maps, we analyze the spatial correlations of food security. The Dagum Gini coefficient and kernel density estimation are applied to assess heterogeneity and spatial disparities. Furthermore, this research employs the Exponential Smoothing (ETS) model to forecast food security trends. The findings reveal that the overall composite food security score exhibited fluctuations, initially increasing and reaching its peak of 0.407 in 2003, followed by a subsequent sharp decline after 2019. Spatially, food security exhibits correlations, with the Huang-Huai-Hai Plain and Northeast regions consistently showing high-high clustering. In contrast, the Western and Southern regions exhibit low-low clustering at specific periods. The Dagum Gini coefficient indicates that overall food security disparities are relatively small. However, these disparities have gradually expanded in recent years, with inter-group differences becoming predominant after 2005. As indicated by the kernel density estimation, the dynamic distribution of food security initially widens and then narrows, suggesting a shift from dispersed to concentrated data distribution. This phenomenon is accompanied by polarization and convergence trends, particularly evident after 2015. According to the ETS model, the study forecasts a substantial risk of declining food security in China over the next decade, largely influenced by the ongoing pandemic. In conclusion, this research provides a comprehensive assessment of the changing status of food security in China. It offers early warnings through predictive analysis, addressing the existing research gaps in the field of food security.

This paper reviews studies concerning food security in China. Before the 1980s, China suffered from chronic food shortages. Since 1980, food supply has gradually improved. Today, food in China is plentiful and varieties are diverse. Reviewing what the literature has to say about what has been most fundamental in affecting China’s level of food security can help channel future food security efforts in the right direction. Existing studies suggest that institutions were chiefly responsible for China’s food shortage or abundance. Reforms to China’s economic institutions since the 1980s were fundamental to improving its food supply. To further improve China’s overall food security, several major challenges – widespread food safety and quality concerns, large and widening income inequalities, and the degrading environment and resources that affect sustainable food production – have to be overcome. All such challenges are also closely linked to the country’s widespread corruption. To curtail the corruption and conquer remaining and emerging food security challenges, more innovative reforms to the country’s institutions would be needed.

Improving agricultural water productivity to ensure food security in China under changing environment: From research to practice

Eliminating hunger and ensuring food security is one of the specific goals of sustainable development of the United Nations in 2030, and food production is of great significance to food availability. Based on this, this paper investigates the impact of digital inclusive finance on food security by constructing a fixed effects model using panel data for 30 Chinese provinces from 2011 to 2020. The results found that: (1) Digital inclusive finance significantly and positively affects food security, and the results remain robust after robustness tests and endogeneity tests. (2) The scale of farmland operations plays a positive mediating role in the effect of digital inclusive finance on food security, and the level of agricultural machinery positively moderates the effect of digital inclusive finance on food security. (3) Heterogeneity tests show that there is a positive effect of digital inclusive finance on food security in eastern China, and a non-significant effect of digital inclusive finance on food security in central and western regions;. There is a significant positive effect of digital inclusive finance on food security in China’s main grain marketing areas and balanced production and marketing areas, and a non-significant effect of digital inclusive finance on food security in the main grain producing areas.

The prospects for China's food security and imports: Will China starve the world via imports?

Objective. The purpose of the article is to compare the levels and mechanisms of food security management in Ukraine and Poland, to identify the main factors influencing the processes of its formation and to determine the directions of increasing the level of Ukraine food security. Methods. The scientific results of the study were obtained using the following methods: theoretical generalization and comparison (for the study of meaningful aspects of the definition of «food security»), analysis and synthesis (for comparative analysis of Ukraine and Poland food security levels), abstract-logical method (for establishing the links between the level of economic development of countries and the levels of their food security and determining the directions of increasing the Ukraine level of food security). Results. On the basis of a comparative analysis of Ukraine and Poland food security levels, a significant gap in Ukraine’s provision of food security has been identified. Thus, with respect to all food security components identified by FAO, except for the «use» of sanitary and safe drinking water, Poland has reached far ahead of Ukraine. It has been found that for the period 2012–2018, the value of the Global Food Security Index for Ukraine decreased by 2.1 due to a decrease in the level of affordability and availability of food, while the Polish side increased its position on GFSI by 2.8 due to the increase in affordability and availability of food in the country. It has been found that the decisive influence on the level of food security in Poland, as well as high ranking in the ranking is carried out by the EU Common Agricultural Policy (CAP), the implementation of the Polish Rural Development Program and significant public spending on agriculture. It has been determined that the main directions for improving the level of food security of Ukraine should be: lifting the moratorium on the sale of agricultural land; financing the agri-food sector not only through public spending but also through EU programs; creation and implementation of the National Rural Development Program; full and unconditional implementation of Government programs on EU integration; adaptation to the EU Common Agricultural Policy standards.

Water management and crop production for food security in China: A review

Food security in the United Kingdom: External supply risks

The interconnection between urbanization, the environment, and food security necessitates an exploration of their coupling coordination to advance the attainment of Sustainable Development Goals. However, limited research directly addresses the feasibility and strategies required to achieve such coordination. This study investigates the coupling coordination and spatial heterogeneity between urbanization, the environment, and food security in China from 2004 to 2020, employing the coupling coordination degree model, the spatial correlation model, the Dagum Gini coefficient, and the obstacle degree model. The results show that: (1) the level of coordinated development between urbanization, the environment, and food security in China has significantly increased, as evidenced by a remarkable rise in the coupling coordination degree; (2) a robust positive spatial correlation is observed in the coupling coordination degree, with “Low-Low” clusters predominantly concentrated in northwest China and “High-High” clusters primarily located in southeast China; (3) inter-regional differences are identified as the primary cause of this spatial heterogeneity; (4) food security has emerged as the foremost obstacle to coordinated development between urbanization, the environment, and food security in China. Optimizing the rational allocation of natural resources across different sectors, enhancing resource use efficiency, and strengthening environmental pollution control and management have been proven to be crucial measures and key strategies for promoting their coordinated development. This study provides a novel perspective on balancing the intricate relationship between urbanization, environmental protection, and food security, which is conducive to the achievement of Sustainable Development Goals in developing countries.

Contributions made by rain-fed potato with mulching to food security in China

As a large agricultural country, food security is of vital importance to the national economy and people's livelihood. In recent years, food production has been constantly restricted in order to meet the needs of urbanization and economic development. And problems such as resource compression, cost increase and insufficient investment in science and technology have gradually surfaced. In order to guarantee the food production safety, this paper comprehensively analyzes the status of China's food security from four aspects: food availability, food access, food utilization and the stability of food security. Through comparative analysis, it is known that the overall situation of China's food security has been significantly improved. It is better than the average level of developing countries. China also has advantages when compared with other developing countries with large populations, but there is still a certain gap with the average level of developed countries. China's food security situation is not balanced in different dimensions. The food availability situation measured by indicators such as per capita food output and average dietary energy supply has significantly improved. The food access measured by per capita GDP, domestic food price index, prevalence of undernourishment and so on, enhances continuously. The global hunger index was significantly reduced in food utilization, and the condition of food utilization measured by clean drinking water sources and good sanitation facilities was significantly improved. The lower stability index of political stability, the higher domestic food price volatility and per capita food production variability are not conducive to the stability of food security.

In view of food affordability and the threshold for food security, this paper has established an integrated index for assessing the vulnerability of food security in China, which is composed mainly of the balance between food supply and demand, the reserve for food security and the economic capacity for offset food demand. Six types of food security regions are identified based on the data from county-level statistics. At regional scale, China’s food security is not optimistic. Under normal conditions without the emergence of extreme disasters and decline of grain-sown areas, China’s most vulnerable areas (Type VI) account for 30.3% of the total number of counties (cities), which are unable to meet the ends by food productivity or market based measures at subsistence levels. In China, there are only 14.5% of the counties (cities) that could guarantee well-off food security through grain production (Type I) or economic measures to meet the demand by themselves (Type III). According to the different vulnerable levels of food security and its dominant forming factors, vulnerable regions of food security in China could be classified into three categories: (1) Vulnerable regions of food security dominated by natural factors (including Type IV and Type VIa), which account for 39.4% of the total number of counties (cities), mainly located in fragile ecologic zones, i.e., farming-grazing transitional zones in the marginal areas of summer monsoon, the poor hilly areas in southern China and so on; (2) Vulnerable regions of food security dominated by low ratio of grain-sown areas (including Type VIb and Type V), which account for 16.7% of the total number of counties (cities), mostly located in the developed areas in the eastern coast of China; (3) Potential vulnerable regions of food security with underdeveloped local economies (Type II), of which 57% are the main grain-surplus regions in China, mainly located in the areas of plains and basins with favorable climate.

The population growth and demand for high living standard not only increase food demand but also cause more loss of the limited cultivated land resources. Cultivated land loss caused by disasters and the implementation of the "Conversion of Cropland to Forest or Grassland" project make this situation even worse in China. Thus, there is a problem to be solved imminently that to what extent the cultivated land can guarantee food security of China. Based on time-series data on food production and cultivated land area from 1989 to 2003 and other research results, this paper constructs quality index of cultivated land according to different land quality. Regression models are adopted to predicate changes of main factors from 2004 to 2030, which have great effect on cultivated land area or grain productivity, and verify accuracy with coefficient of determination (R(2)). Nine results were got according to three scenarios of decreasing rate of population growth rate and three cases of urban and rural built-up area per capita. There results show that China's food supply can only be maintained at a low to middle level of 370-410kg per capita, that is, China has enough land productivity to meet primary demand of food independently. However, it cannot reach the safe target of 500kg per capita if there is no breakthrough in breeding or no remarkable improvement of irrigation works, when the grain self-sufficiency maintains no less than 80%. To breed productive crops and to improve land productivity by meliorating low quality cultivated land are appropriate measures to shrink the gap between food demand and supply. The results may offer helpful information for the formulation of policies on population growth, land use, protection of cultivated land.