海陆梯度视角下土地资源错配程度与优化路径探析——以大连市金普新区为例

Measuring Land Resource Mismatch and Exploring Optimization Pathways from a Land-Sea Gradient Perspective—A Case Study of Dalian Jinpu New Area

摘要: 土地利用效率(LUE)是指土地类型数量、分布、用途对城市经济、社会、文化等活动所产生的效益，反映土地资源配置、经济活力等。土地利用强度(BUI)某一时间特定区域内人类活动对土地利用强度的干扰程度。土地利用效率和土地利用强度之间的耦合指数(CI)决定了土地资源的错配情况。然而，目前对随海岸距离变化土地资源错配的情况尚不明确。所以，本研究将采用多指标综合评价法和地理信息系统空间分析技术，利用国内生产总值(GDP)数据、道路密度数据等数据测算土地利用效率；利用土地开发广度指数和建筑高度数据得到土地利用强度。利用土地利用效率与强度指数从土地自身角度，分析在不同离岸距离下海–陆梯度效应对金普新区土地资源错配情况。结果表明：沿海地区土地利用效率和强度高度重合，且值较高，但土地资源错配程度偏高；中间过渡区域土地利用效率和利用强度匹配较好，土地利用强度稍高，土地资源错配程度较低；内陆地区受地形影响，土地利用效率较低，使土地资源错配程度高。

Abstract: Land Use Efficiency (LUE) refers to the benefits generated by the quantity, distribution, and utilization of land types for urban economic, social, and cultural activities, reflecting land resource allocation and economic vitality. Land use intensity (BUI) measures the degree of human disturbance to land use within a specific area at a given time. The coupling index (CI) between land use efficiency and land use intensity determines the degree of land resource mismatch. However, the pattern of land resource mismatch varying with distance from the coastline remains unclear. Therefore, this study employs a multi-indicator comprehensive evaluation method and Geographic Information System (GIS) spatial analysis techniques. Land use efficiency is calculated using Gross Domestic Product (GDP) data, road density data, and other relevant datasets. Land use intensity is derived from the Land Development Extent Index and building height data. By analyzing the Land Use Efficiency and Intensity Index from the perspective of land itself, this study examines the sea-land gradient effect on land resource mismatch in the Jinpu New Area at different offshore distances. Results indicate: The coastal areas exhibit high overlap between land use efficiency and intensity, with relatively high values, yet significant land resource mismatch. Intermediate transition zones show better alignment between efficiency and intensity, featuring slightly higher intensity and lower mismatch. Inland regions, influenced by topography, demonstrate lower land use efficiency, leading to high levels of land resource mismatch.