Dynamic Identification and Evolution of Urban-suburban-rural Transition Zones Based on the Blender of Natural and Humanistic Factors: A Case Study of Chengdu, China

IF 3.4 2区 地球科学 Q2 ENVIRONMENTAL SCIENCES
Wei Deng, Zhenyuan Jiang, Shaoyao Zhang, Ping Ren, Hao Zhang, Zhanyun Wang
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引用次数: 0

Abstract

Urban-suburban-rural (U-S-R) zones exhibit distinctive transitional characteristics in interaction between human and nature. U-S-R transition zones (U-S-RTZ) are also highlighting the function diversity and landscape heterogeneity across territorial spaces. As a super megacity in western China, Chengdu’s rapid urbanization has driven the evolution of U-S-R spaces, resulting in a sequential structure. To promote the high-quality spatial development of urban-rural region in a structured and efficient manner, it is essential to conduct a scientific examination of the multidimensional interconnection within the U-S-RTZ framework. By proposing a novel identification method of U-S-RTZ and taking Chengdu, China as a case study, grounded in a blender of natural and humanistic factors, this study quantitatively delineated and explored the spatial evolutions of U-S-RTZ and stated the optimization orientation and sustainable development strategies of the production-living-ecological spaces along the U-S-R gradients. The results show that: 1) it is suitable for the quantitative analysis of U-S-RTZ by established three-dimensional identification system in this study. 2) In 1990–2020, the urban-suburban transition zones (U-STZ) in Chengdu have continuously undergone a substantial increase, and the scale of the suburban-rural transition zones (S-RTZ) has continued to expand slightly, while the space of rural-ecological transition zones (R-ETZ) has noticeably compressed. 3) The landuse dynamics within U-S-RTZ has gradually increased in 1990–2020. The main direction of landuse transition was from farmland to construction land or woodlands, with the expansion of construction land being the most significant. 4) R-ETZ primarily focus on ecological functions, and there is a trade-off relationship between the production-ecological function within the S-RTZ, and in the U-STZ, production-living composite functions are prioritized. This study emphasizes the importance of elastic planning and precise governance within the U-S-RTZ in a rapid urbanization region, particularly highlighting the role of suburbs as landscape corridors and service hubs in urban-rural integration. It elucidates to the practical implications for achieving high-quality development of integrated U-S-R territorial spaces.

基于自然和人文因素混合的城市-郊区-农村过渡带的动态识别与演化:中国成都案例研究
城市-郊区-农村(U-S-R)地带在人与自然的互动中表现出鲜明的过渡特征。城市-郊区-乡村过渡带(U-S-RTZ)也凸显了不同地域空间的功能多样性和景观异质性。作为中国西部的超大城市,成都快速的城市化进程推动了 U-S-R 空间的演化,形成了序列结构。要有序、高效地推动城乡区域空间高质量发展,必须对 U-S-RTZ 框架内的多维互联关系进行科学考察。本研究通过提出一种新颖的 U-S-RTZ 识别方法,以中国成都为例,立足于自然与人文因素的融合,定量划分和探索了 U-S-RTZ 的空间演化过程,提出了 U-S-R 梯度上生产-生活-生态空间的优化导向和可持续发展策略。研究结果表明1)本研究建立的三维识别系统适合对 U-S-RTZ 进行定量分析。2)1990-2020 年,成都市城市-郊区过渡带(U-STZ)持续大幅增加,郊区-农村过渡带(S-RTZ)规模持续小幅扩大,农村-生态过渡带(R-ETZ)空间明显压缩。3) 1990-2020 年,U-S-RTZ 内的土地利用动态变化逐渐加剧。土地利用转型的主要方向是从耕地到建设用地或林地,其中建设用地的扩张最为显著。4)R-ETZ 以生态功能为主,S-RTZ 内存在生产-生态功能的权衡关系,U-STZ 内则以生产-生活复合功能为主。本研究强调了在快速城市化地区,在 U-S-RTZ 内进行弹性规划和精确治理的重要性,尤其突出了郊区作为景观走廊和服务枢纽在城乡一体化中的作用。它阐明了实现 U-S-R 领土空间一体化高质量发展的实际意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Chinese Geographical Science
Chinese Geographical Science 环境科学-环境科学
CiteScore
6.10
自引率
5.90%
发文量
63
审稿时长
3.0 months
期刊介绍: Chinese Geographical Science is an international journal, sponsored by Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, and published by Science Press, Beijing, China. Chinese Geographical Science is devoted to leading scientific and technological innovation in geography, serving development in China, and promoting international scientific exchange. The journal mainly covers physical geography and its sub-disciplines, human geography and its sub-disciplines, cartography, remote sensing, and geographic information systems. It pays close attention to the major issues the world is concerned with, such as the man-land relationship, population, resources, environment, globalization and regional development.
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