Food security is an important guarantee for world peace and development and has a bearing on the sustainable development and future destiny of humankind. The 2023 State of Food Security and Nutrition in the World report released by the Food and Agriculture Organization of the United Nations (FAO) shows that between 691 and 783 million people worldwide were hungry in 2022. Although the increase in the number of hungry people in the world has slowed down, there are still many regions of the world that are sinking deeper into the food crisis. If left unchecked, the world will not be on track to meet the Sustainable Development Goal of eradicating hunger by 2030. Food security continues to be a global challenge.

Food security is based on the food system, and when the food system is under stress, the level of food security is reduced. This stress comes from a variety of factors, including land-use change. Land use change and its impacts have become a hotspot and frontier of global change research. With the development of human society, the structure, depth, and intensity of land use are constantly changing, which directly affects the issue of food security. There is a close relationship between regional food security and land use change. This Research Topic focuses on land use intensity change and its implications for food security.

In-depth research on the relationship between land use intensity change and food security is still needed, including relevant theories, evaluation methods, and practical studies. This collection aims to explore the process of regional land use intensity change, reveal the pattern of land use change and its driving mechanism, and focus on the impact of land use intensity change on food security, to provide strong support for ensuring food security and achieving the United Nations Sustainable Development Goals on schedule. We will bring together relevant original research, build an academic exchange platform, and promote rigorous analysis and discussion.

The collection welcomes high-quality original research and review articles related to land use change and food security. The Research Topic will focus on the following topics, but not limited to them:

• The impact of land use intensity change on food production potential
• Sustainability of food production under intensive land use
• Risk assessment of land use intensity and food security
• Regional land use planning for intensive land use and food security
• Ecological responses to land use intensity changes and their impact on food systems

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Frontiers in Sustainable Food Systems

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