河北省廊坊市北三县生态系统服务价值与居民福祉耦合协调演变

Spatiotemporal evolution of coupling coordination between ecosystem service value and residents’ well-being in the northern three counties of Langfang City, Hebei Province of northern China

摘要

【目的】分析京津冀城市群城镇化承接区生态系统服务价值（ESV）与居民福祉的时序变化和县域差异，探讨二者耦合协调关系的演变特征，为区域生态保护与民生改善统筹决策提供参考。【方法】以廊坊市北三县（三河市、大厂回族自治县和香河县）为例，基于1999-2023年土地利用、气象、土壤及社会经济等多元数据，利用InVEST模型评估产水、土壤保持、固碳、水质净化与生境质量等生态系统服务，综合影子工程法、替代成本法和市场价值法核算生态系统服务价值；构建居民福祉多维评价指标体系并采用熵权法确定权重；运用耦合协调度模型刻画两系统协同演变特征，同时在整体尺度开展分项ESV与福祉维度的相关性分析。【结果】（1）1999-2023年北三县生态系统服务价值总体呈波动上升趋势，ESV总值由88.133亿元增至332.213亿元。（2）居民福祉综合指数总体上升，由0.357增至0.697，但2011年前后出现阶段性回落，2015年后增速加快。（3）耦合度 C介于0.484~0.997，耦合协调度 D介于0.303~0.897，整体由轻度失调向协调水平提升，但城镇化加速阶段存在阶段性波动；县域尺度呈现明显梯度，2023年三河市耦合协调度显著高于香河县与大厂回族自治县，且香河县后期出现ESV回落与福祉上升的错位组合。（4）维度关联结果表明，固碳、水质净化与生境质量等分项与“基本物质需求”维度呈显著正相关，而与“健康与安全”维度相关性较弱或呈负相关；“良好社会关系”维度与生境质量、水质净化的相关性较强。【结论】北三县生态系统服务与居民福祉总体呈协同改善，但存在阶段性波动与县域分化。承接区协同治理应面向县域异质性，在稳定关键生态系统服务供给的同时加强公共服务与风险治理能力建设，促进生态保护与民生改善的协同提升。

Abstract

[Objective] To analyze the temporal variation and county-level differences in ecosystem service value and residents’ well-being in urbanization spillover-receiving areas of the Beijing-Tianjin-Hebei urban agglomeration, to explore the evolution of their coupling coordination relationship, and to provide a reference for regional ecological conservation and coordinated improvement of human well-being. [Method] Taking the Northern Three Counties of Langfang (Sanhe City, Dachang Hui Autonomous County, and Xianghe County) as a case study, and based on multi-source data on land use, meteorology, soil, and socioeconomic conditions from 1999 to 2023, this study assessed ecosystem services including water yield, soil conservation, carbon storage, water purification, and habitat quality using the InVEST model. The shadow engineering method, replacement cost method, and market value method were then integrated to estimate ecosystem service value. A multidimensional evaluation index system for residents’ well-being was constructed, with indicator weights determined by the entropy weight method. The coupling coordination degree model was used to characterize the coordinated evolution of the two systems, and correlations between ESV components and well-being dimensions were further analyzed at the overall scale. [Result] (1) From 1999 to 2023, total ESV in the Northern Three Counties of Langfang showed a fluctuating upward trend, increasing from 8.813 to 33.221 billion yuan. (2) The composite well-being index rose from 0.357 to 0.697, with a temporary decline around 2011 and a faster rise after 2015. (3) The coupling degree (C) ranged from 0.484 to 0.997 and the coupling coordination degree (D) ranged from 0.303 to 0.897, indicating an overall transition from mild maladjustment toward coordination, while exhibiting phase-specific fluctuations during the period of accelerated urbanization. Clear county-level gradients were observed: in 2023, Sanhe City had a markedly higher D than Xianghe County and Dachang Hui Autonomous County, and Xianghe County showed a mismatch in the later period characterized by declining ESV alongside rising well-being. (4) Dimension-specific associations showed that carbon sequestration, water purification, and habitat quality were significantly positively correlated with the “basic material needs” dimension, whereas correlations with “health and safety” were weak or negative; the “good social relations” dimension was more strongly correlated with habitat quality and water purification. [Conclusion] Overall, ecosystem services and residents’ well-being in the Northern Three Counties of Langfang improved in coordination, but with stage-dependent fluctuations and county-level differentiation. Collaborative governance in urbanization receiving zones should adopt place-based strategies: stabilizing the supply of key ecosystem services while strengthening public services and risk-governance capacity, so as to promote synergies between ecological conservation and livelihood improvement.

关键词

生态系统服务价值 / 居民福祉 / 耦合协调度 / InVEST模型

Key words

ecosystem service value / residents’ well-being / coupling coordination degree / InVEST model

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基金资助

廊坊市科技支撑计划(2025013107)