Abstract: To explore the role of high-standard farmland construction in the green and low-carbon development of agriculture, this study constructs a "five-in-one" analytical framework to systematically investigate the intrinsic logic and optimization pathways through which high-standard farmland construction facilitates this synergy. The findings reveal that current high-standard farmland construction has established a synergistic foundation encompassing production capacity, efficiency, ecology, and economy for grain yield enhancement and carbon reduction. However, practical constraints persist, including imbalanced regional planning, inefficient fund allocation, inadequate long-term maintenance mechanisms, and insufficient policy coordination. To address these challenges, this paper proposes a dynamic planning system to mitigate regional disparities, innovative funding allocation models to amplify synergistic effects, robust maintenance mechanisms to consolidate developmental foundations, and enhanced policy coordination to promote resource integration. These strategies aim to drive the transformation of grain production systems from "high-carbon yield growth" to "low-carbon efficiency enhancement," thereby providing actionable pathways and policy references for advancing agricultural green and low-carbon development and achieving China’s Dual Carbon Goals.

Key words: high-standard farmland construction, grain yield increase, carbon emission reduction, agricultural green low-carbon development