Xu Ming, Lu Zhaoyang
School of Economics, Southwest University of Political Science and Law, Chongqing, China.
School of National Security, Southwest University of Political Science and Law, Chongqing, China.
PLoS One. 2025 Jun 4;20(6):e0324899. doi: 10.1371/journal.pone.0324899. eCollection 2025.
Food security is the lifeline of national security. It is not only an important cornerstone for world peace, stability, and development, but also the core driving force for promoting the green development of agriculture. This paper utilizes the empirical data of 30 provinces in China from 2010 to 2022 to explore how agricultural non-point source pollution (ANSP) affects food security (FS), and also discusses the moderating effect of environmental regulations (ER). Empirical research shows that the intensification of agricultural non-point source pollution will lead to a decline in the level of food security, especially in the western areas, grain-producing areas, and grain-balanced areas. Furthermore, environmental regulations have a positive moderating effect on the impact of agricultural non-point source pollution on food security. From the perspective of the spatial spillover effect, the inhibitory effect of agricultural non-point source pollution on food security has a spillover effect in space and will radiate to the development of food security in adjacent areas. The research suggests that the local government should enhance its attention and supervision over agricultural non-point source pollution, integrate agricultural technology with environmental supervision, optimize the allocation of agricultural resources, and attach importance to the protection of the agricultural ecological environment, so as to better ensure food security and achieve green agricultural development.
粮食安全是国家安全的生命线。它不仅是世界和平、稳定与发展的重要基石，也是推动农业绿色发展的核心驱动力。本文利用2010年至2022年中国30个省份的经验数据，探讨农业面源污染（ANSP）如何影响粮食安全（FS），并讨论环境规制（ER）的调节作用。实证研究表明，农业面源污染的加剧将导致粮食安全水平下降，特别是在西部地区、粮食产区和粮食平衡区。此外，环境规制对农业面源污染对粮食安全的影响具有正向调节作用。从空间溢出效应来看，农业面源污染对粮食安全的抑制作用具有空间溢出效应，并将辐射到相邻地区的粮食安全发展。研究建议地方政府应加强对农业面源污染的重视和监管，将农业技术与环境监管相结合，优化农业资源配置，重视农业生态环境保护，以更好地保障粮食安全，实现农业绿色发展。
