Spatial Zoning of Cultivated Land in Shandong Province Based on the Trinity of Quantity, Quality and Ecology

The spatial zoning of cultivated land is a core aspect of territorial spatial planning and an important basis for implementing differentiated cultivated land protection policies. To provide theoretical guidance for the future direction of the protection and utilization of cultivated land in Shandong Province, this paper built a theoretical framework for the spatial zoning of cultivated land based on the trinity of quantity, quality, and ecology and formed an indicator system for the spatial zoning of cultivated land based on these three elements. Based on the analysis and grading results of spatial zoning indicators of cultivated land, hierarchical clustering analysis was performed on 133 county-level administrative units, and then the cultivated land resources of Shandong Province were divided into four types of zones: Key protection zones, comprehensive promotion zones, multifunctional utilization zones, and ecological utilization zones. Future development directions in relation to the protection and utilization of cultivated land in each type of zone were proposed. The results showed that the spatial zoning of cultivated land based on the trinity of quantity, quality, and ecology has important theoretical and practical significance for guiding the protection and utilization of cultivated land in Shandong Province and other regions.