The expeditious trajectory of urbanization has profound ramifications on the configuration and functioning of the natural milieu. Given the constrained opulence of natural capital and its indispensable bestowal of ecosystem services in different regions, meticulous contemplation of the relationship between urbanization and the ecosystem service scarcity value (ESSV) while formulating decisions is imperative. This study focuses on the Yangtze River Economic Belt (YREB), where ESSV is quantified by combining the dynamic changes in market supply and demand factors. The influence of supply and demand changes on the ESSV is discussed and analyzed in four scenarios. Subsequently, a multidimensional urbanization comprehensive evaluation index system was established to explore the spatiotemporal interactive response mode between ESSV and urbanization. Our findings manifest a notably augmented ESSV in the YREB from 1990 to 2020, particularly prominent between 2000 and 2010. Moreover, the growth in public goods services outpaced that in private goods services within the same period. Demand-driven scarcity has emerged as the foremost determinant of ESSV. Urbanization levels gradually increased from 1990 to 2020, with a uniform allocation of heightened ESSV and urbanization throughout the region. The urbanization level of YREB, as a whole, exhibited conspicuous spatial heterogeneity, with the downstream region significantly surpassing the middle and upper reaches, and the downstream Yangtze River Delta city cluster and the middle reaches of the Chengdu-Chongqing city cluster notably outpacing that in the surrounding region. The coupling coordination degree (CCD) between the ESSV and urbanization in the YREB develops in a harmonious direction during the study period, accompanied by palpable spatial disparities. The area of unbalanced development gradually decreased, and the area proportion of the coordinated development type of ESSV and urbanization increased continuously. Overall, this study elucidates regional disparities in the reciprocal relationship between the ESSV and urbanization in the YREB, thereby unveiling the extent of incongruity between regional urbanization and the ecosystem. It serves to identify the juncture at which ecological sustainability and urbanization converge harmoniously, thus offering novel insights in achieving comprehensive, high-caliber, and synchronized development in the YREB.

中文翻译：

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长江经济带生态系统服务与城镇化的时空相互作用——考虑稀缺效应的新视角


城市化的快速发展轨迹对自然环境的配置和功能产生了深远的影响。鉴于自然资本的丰富性及其在不同地区不可或缺的生态系统服务，在制定决策时必须仔细考虑城市化与生态系统服务稀缺价值 （ESSV） 之间的关系。本研究以长江经济带 （YREB） 为研究对象，通过结合市场供需因素的动态变化对 ESSV 进行量化。本文在 4 种情景中讨论和分析了供需变化对 ESSV 的影响。随后，建立了多维城镇化综合评价指标体系，探索 ESSV 与城市化之间的时空交互响应模式。我们的研究结果表明，从 1990 年到 2020 年，YREB 的 ESSV 显着增强，在 2000 年至 2010 年期间尤为突出。此外，同期公共产品服务的增长速度超过了私人产品服务的增长。需求驱动的稀缺性已成为 ESSV 的首要决定因素。从 1990 年到 2020 年，城市化水平逐渐提高，整个地区 ESSV 和城市化率的统一分配。长江城市化水平整体上表现出明显的空间异质性，下游区域显著超过中上游地区，下游长三角城市群和成渝城市群中游地区明显超过周边地区。 在研究期间，长江经济分布区与城市化的耦合协调度 （CCD） 朝着和谐的方向发展，并伴有明显的空间差异。不平衡发展面积逐渐缩小，ESSV与城镇化协调发展型的面积比重持续增加。总体而言，本研究阐明了 ESSV 与 YREB 城市化之间互惠关系的区域差异，从而揭示了区域城市化与生态系统之间的不协调程度。它有助于确定生态可持续性和城市化和谐融合的节点，从而为实现长江经济区全面、高质量和同步发展提供新的见解。