中缅边境典型城市扩张遥感动态监测及驱动力分析

在“一带一路”背景下，当前针对边境城市建成区发展的研究尚不充分，特别境内外口岸毗邻城市的演化交互关系更有待挖掘。以中缅边境地区典型的口岸毗邻城市——瑞丽市和木姐市作为研究区，选取2012、2015和2018年遥感影像，采用城镇建筑用地指数提取两市建成区，从建成区扩张数量、空间分布格局和内部经济规模3个方面，分析瑞丽市开发开放试验区设立后的两市建成区动态变化特征，并对两市建成区演化的交互关系和扩张驱动因素进行探讨。结果表明：在自然环境、经济产业、政策规划、交通、口岸等因素的综合作用下，两市建成区扩张明显。瑞丽市城市西部扩张最为明显，东部次之，呈现“一体两翼”式扩张格局，逐渐从建成区外延转为内部填充及基础设施完善阶段；木姐市主要向西北和正东方向扩张，建成区保持较为明显的外延特征，但其内部土地集约利用水平不高。在交互协同发展过程中，瑞丽市占主导地位，木姐市处在依附地位。两市的快速协同扩张也体现了中缅两国政治经济的紧密交流和广阔的合作空间。

Remote Sensing Dynamic Monitoring and Driving Force Analysis of Typical Urban Expansion along the China-Myanmar Border

In the context of "One Belt， One Road"， the current research on the development of built-up areas in border cities is insufficient， especially the expansionary interaction of cities adjacent to domestic and foreign ports needs to be explored. The cities of Ruili and Muse， which are typical border crossing cities in the China-Myanmar border region， are used as the study area. This study selects remote sensing images from 2012， 2015 and 2018， and extracts the built-up areas of the two cities using the Urban Construction Land Index to analyze the dynamic and changing characteristics of the built-up areas of the two cities after the establishment of the Ruili Development and Opening-Up Pilot Zone in terms of the number of expansions， spatial distribution patterns and internal economic scale. Furthermore， the interaction between the evolution of the two cities' built-up areas and the drivers of expansion are also discussed. The results show that under the combined effect of the natural environment， economic industry， policy planning， transportation， ports and other factors， the built-up areas of the two cities have expanded significantly. The expansion of Ruili is most obvious in the western part of the ubran， followed by the east， showing a "one body， two wings" expansion pattern， gradually shifting from the outer extension of built-up areas to the internal filling and infrastructure improvement stage. Muse is expanding mainly to the northwest and due east， and the built-up areas of the city maintain a more pronounced outward character， but the level of intensive land use within the city is low. In the process of interactive and coordinated development， Ruili is dominant and Muse is in a dependent position. The rapid synergistic expansion of the two cities also reflects the close political and economic exchanges and the vast scope for cooperation between China and Myanmar.