Abstract:

Clarifying the relationship between urbanization and ecosystem services in the frontier plateau regions is an inevitable requirement for implementing China’s ecological civilization construction strategy. Taking Yunnan Province as the research object, this study measures the coupling coordination between urbanization and ecosystem services, uses an allometric growth model to explore their allometric relationship, and then introduces a ‘differentiation’ gradient to analyze their interactive mechanism. The results indicate that: 1) In terms of correlation, between 2000 and 2020, 93.6% of the relationship between urbanization levels and ecosystem service values in Yunnan Province showed significant negative correlations (p<0.05), exhibiting a development trend of rising first and then falling. The coupling coordination displayed a pattern of 'high in central Yunnan, low on the edges,' with coordination gradually improving. 2) In terms of vertical allometric relationships, the goodness-of-fit for both urbanization and ecosystem service values in Yunnan Province was greater than 0.55, indicating a good overall fit, and a significant negative allometric growth relationship was observed. In horizontal allometric relationships, negative allometric growth predominated, with a distinct patchy spatial distribution, suggesting that the growth rate of ecosystem service values was slightly slower than the relative growth rate of urbanization, which generally reflects a development pattern of uncoordinated ecosystem services under rapid urbanization. 3) Regarding interaction mechanisms, six major factors—geographic environment, socio-cultural aspects, public health, political factors, legal policies, and economic development—interact and couple across spatial order, temporal sequence, and driving mechanisms to form a 'differentiated' gradient. This results in a significant negative allometric growth relationship under the coupled relationship between urbanization and ecosystem services in Yunnan Province. The research findings may provide theoretical and practical guidance for the sustainable regional development of border towns in China within the new development pattern that prioritizes the domestic cycle while promoting mutual reinforcement between domestic and international cycles.

Key words: urbanization, ecosystem services, allometric relations, interaction mechanisms, Yunnan Province

摘要：

厘清边疆高原地区城镇化与生态系统服务之间的关系，是落实中国生态文明建设战略任务的必然要求。以云南省为研究对象，在测度城镇化与生态系统服务耦合协调的基础上，采用异速增长模型探究其异速关系，再引入“差异性”梯度剖析其互动机制。结果表明，1）在相关性上，2000－2020年云南省城镇化水平与生态系统服务价值有93.6%的部分为显著负相关性（p<0.05），并呈现先增后降的发展态势；耦合协调性呈“滇中高、边缘低”格局，且协调性逐渐增强。2）在纵向异速关系上，云南省城镇化与生态系统服务拟合优度均大于0.55，整体性拟合效果较好，负异速增长关系显著；在横向异速关系上，以负异速增长为主，片状分布空间形态明显，表明生态系统服务价值增长速度稍慢于城镇化相对增长速度，普遍存在快速城镇化下生态系统服务不相协调的发展态势。3）在互动机制上，地理环境、社会文化、公共卫生、政治因素、法律政策和经济发展等六大要素在空间秩序、时间序列和动因机制上交互耦合作用下形成“差异性”梯度，使云南省城镇化与生态系统服务呈现耦合作用关系下显著的负异速增长关系。研究成果可为边疆城镇在中国构建国内大循环为主体、国内国际双循环相互促进的新发展格局中的区域可持续发展提供理论与实践指导。

关键词: 城镇化, 生态系统服务, 异速关系, 互动机制, 云南省