Objective The impact of geographical indication (GI) certification of agricultural products on the spatial agglomeration degree of county-level cultivated land and its pathways were evaluated from spatial perspective in order to provide decision-making reference for promoting regional specialty agriculture and effectively enhancing the agglomeration degree of cultivated land. Methods Based on county-level annual cultivated land raster data from the CACD (2024), ArcGIS and Fragstats were used to construct indicators of cultivated land spatial agglomeration at the county level. A multi-period difference-in-differences model and a two-way fixed effects model were employed to identify causal effects and to systematically examine the internal logic of the impact of agricultural brand building on the spatial agglomeration of cultivated land. Results ① GI certification significantly enhanced the spatial agglomeration degree of county-level cultivated land, with the spatial agglomeration degree of county-level cultivated land increasing by an average of about 0.113 after certification. ② GI certification strengthened the spatial agglomeration of cultivated land by promoting the development of agricultural industrialization and improving the dynamic balance level of total cultivated land. ③ The effects of GI certification were more significant in counties with lower terrain slopes and higher levels of agricultural mechanization. ④ GI certification also generated positive spatial spillover effects on adjacent non-certified counties. Conclusion Expanding the newly added scale of agricultural brands, improving the quality level of existing brands, and optimizing the spatial layout of brands can further unlock the effectiveness of brand building policies, thereby becoming an effective pathway for optimizing the spatial patterns of cultivated land and enhancing national food security capacity.
文献参数: 刘波, 李谦.农业品牌建设对耕地空间聚集度的影响[J].水土保持通报,2026,46(3):247-256. Citation:Liu Bo, Li Qian. Impact of agricultural brand building on spatial agglomeration degree of cultivated land [J]. Bulletin of Soil and Water Conservation,2026,46(3):247-256.
Tu Ying等[22]提出一种整合多源遥感数据和机器学习技术的全新框架,实现对中国省、市、县3个层次的大规模、高精度耕地动态监测,构建了中国1986—2021年30 m空间分辨率的县级年度耕地数据集(CACD),数据来源于Zenodo平台,数据格式为栅格数据。基于此,本文首先通过ArcGIS软件对栅格数据进行裁剪,获得县级层面的耕地数据,再利用Fragstats软件估计耕地空间聚集度指数,作为评估县域耕地空间聚集度的指标。
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