济南市耕地多功能性时空演变及优化调控研究

Study on Spatiotemporal Evolution and Optimal Regulation of Cultivated Land Multifunctionality in Ji'nan City

摘要:

耕地多功能性研究对耕地保护及可持续利用具有重要意义。本文以济南市为研究区，构建了栅格尺度的耕地多功能性评价方法体系，系统分析了2013—2023年济南市耕地多功能性的时空演变特征，进行了优化分区。研究结果表明：2013—2023年济南市耕地各项功能及耕地多功能性的空间分布具有相似性，均呈现北高南低的空间分布格局；研究期内济南市耕地多功能性先减弱后增强，就具体功能而言，除生境维持功能外，其他功能均呈先减弱后增强的变化趋势，生境维持功能则呈先增强后减弱的变化趋势；济南市耕地多功能性的保护工作应从耕地数量、质量和生态“三位一体”的角度出发，根据不同的耕地功能区制定因地制宜的保护和发展政策。

Abstract:

The research on the multifunctionality of cultivated land is of great significance to the protection and sustainable utilization of cultivated land. Taking Ji'nan city as a research area, a gridscale multifunctional evaluation method system of cultivated land has been constructed, the spatiotemporal evolution characteristics of multifunctionality of cultivated land in Ji'nan city from 2013 to 2023 has been systematically analyzed, and the zoning has been optimized. It is showed that spatial distribution of various functions and multifunctionality of cultivated land in Ji'nan city is similar from 2013 to 2023, and spatial distribution pattern is high in the north and low in the south. During the study period, the multifunctionality of cultivated land in Ji'nan will decrease first and then increase. In terms of specific functions, except for habitat maintenance function, other functions show a trend of weakening first and then strengthening, while habitat maintenance function shows a trend of strengthening first and then weakening. The protection of multifunctionality of cultivated land in Ji'nan city should start from the perspective of the "trinity" of quantity, quality and ecology, and formulate protection and development policies according to different functional areas of cultivated land.