河南省耕地多功能权衡-协同关系与分区管制研究

Trade-off and Synergy Relationships and Regional Regulation of Multifunctional Cultivated Land in Henan Province

摘要:

研究耕地多功能权衡协同关系对于保护耕地资源、确保粮食安全、维护生态安全及推动乡村振兴等具有重要意义。本文以河南省105个县（市）为研究对象，采用Spearman秩相关分析法、K-means聚类分析法等方法，对河南省2000—2020年耕地多功能水平及其权衡协同关系进行研究。研究表明，2000—2020年，河南省耕地多功能指数整体呈上升趋势，呈现“东高西低”的空间格局，且各功能之间呈现出不同的时空分异特征，东部地区粮食生产功能强而西部生态服务功能优，经济贡献功能整体呈下降趋势，社会保障功能虽弱却逐年提升；耕地多功能权衡与协同关系时空差异变化显著，多功能间的相互作用表现出协同减弱与权衡加剧的特点，尤其是粮食生产与经济贡献功能、生态服务功能之间的权衡关系显著；结合耕地主导功能类型和多功能耦合协调特征，将河南省划分为现代农业示范区、城市农业休闲区、生态农业建设区、现代农业建设区4个多功能类型区，并提出了差别化的管制措施。研究结果对于指导粮食主产区耕地的合理配置以及提高耕地多元化利用效率具有理论和实践意义。

Abstract:

The research on the trade-off synergy relationship of multifunctional cultivated land is of great significance for protecting cultivated land resources, ensuring food security, maintaining ecological security, and promoting rural revitalization. Taking 105 counties in Henan Province as the research object, and methods such as Spearman rank correlation analysis and K-means clustering analysis were used to study the multifunctional level of cultivated land in Henan Province from 2000 to 2020 and its trade-off and synergy relationship. The results showed that from 2000 to 2020, the multifunctional index of cultivated land in Henan Province showed an overall upward trend, showing a spatial pattern of “high in the east and low in the west”, and different spatiotemporal differentiation characteristics were observed among various functions. The grain production function in the eastern region was strong, while the ecological service function in the western region was excellent. The overall economic contribution function was declining, and although the social security function was weak, it was gradually improving. The spatiotemporal differences in the trade-off synergy relationship of multifunctional cultivated land were significant, and the interactions between multiple functions showed a characteristic of weakened synergy and intensified trade-offs, especially the significant trade-off between food production and economic contribution functions, as well as ecological service functions. Based on the dominant functional types of cultivated land and the characteristics of multifunctional coupling coordination, Henan Province was divided into four types of functional zones: modern agricultural demonstration zone, urban agricultural leisure zone, ecological agricultural construction zone, and modern agricultural construction zone, and differentiated control measures were proposed. The research result had certain theoretical and practical significance for guiding the rational allocation of cultivated land in major grain producing areas and improving the efficiency of diversified utilization of cultivated land.