| 基于改进框架（VORSDR_EEQ）的贵州省生态系统健康变化及其驱动机制 |
| 摘要点击 406 全文点击 11 投稿时间：2024-12-12 修订日期：2025-03-26 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 生态系统健康 服务供需 环境质量 驱动机制 贵州省 |
| 英文关键词 ecosystem health（EH） services supply-demand environmental quality driving mechanism Guizhou Province |
| DOI 10.13227/j.hjkx.20260224 |
|
| 中文摘要 |
| 区域生态系统健康（EH）的全面评价及其驱动机制探索对于人类社会的可持续发展至关重要. 服务供需与环境质量对EH均具有显著影响，未将两者综合纳入EH评价框架限制了评价结果的合理性与全面性. 为此，研究提出了一种改进的EH评价框架（VORSDR_EEQ），以贵州省为研究区，运用综合考虑生态系统组织结构、服务供需和环境质量的新框架评价了2001~2020年EH的时空变化，并联合地理探测器和多尺度地理加权回归模型研究了EH的驱动机制. 结果表明：①相比于现有EH评价框架，VORSDR_EEQ框架能够同时反映区域自然环境的干度和热度的胁迫作用以及生态系统服务供需盈亏关系对EH 的影响，使评价结果更符合实际；②贵州省EH整体呈改善趋势，但东部地区退化较为严重；③EH的主导驱动因素由自然因素向人类活动转变. 其中土壤湿度的影响逐渐下降，人类足迹的影响持续增强并超越土壤湿度，造林工程的影响到2020年已不再显著，同时自然因素与人类活动的交互作用对EH的影响保持在较高水平；④不同驱动因素对EH的作用机制存在显著的时空差异，在推动生态工程和经济发展时应当结合EH对自然和人类活动响应的实际情况，制定有针对性的生态治理策略. 研究结果可为贵州省生态修复与保护提供科学依据，也为其他地区的EH评价与管理提供新见解. |
| 英文摘要 |
| A comprehensive assessment of regional ecosystem health （EH） and exploring its driving mechanisms are crucial for the sustainable development of human societies. Both service supply-demand and environmental quality significantly impact EH， and the failure to integrate them into the EH evaluation framework limits the rationality and comprehensiveness of the results. Therefore， this study proposed an improved EH assessment framework （VORSDR_EEQ） and assessed the spatial and temporal changes in EH from 2001 to 2020 using a new framework that integrates ecosystem organization structure， service supply-demand， and environmental quality with Guizhou Province as the study area. It also investigated the driving mechanisms of EH by combining Geodetector and the multi-scale geographically weighted regression model. The results showed that： ① Compared with the existing EH assessment frameworks， the VORSDR_EEQ framework can simultaneously reflect the coercive effects of dryness and heat of the regional natural environment and the impacts of ecosystem service supply and demand-gain-loss relationships on EH， thereby providing more realistic evaluation results. ② Overall， EH in Guizhou Province showed an improving trend， although the degradation in the eastern regions was more severe. ③ The dominant driver factors of EH shifted from natural factors to human activities. Among these， the influence of soil moisture gradually decreased， the influence of human footprint continued to increase and exceeded that of soil moisture， and the influence of afforestation projects was no longer significant by 2020. At the same time the interaction between natural factors and human activities maintained a high level of influence on EH. ④ There were significant spatiotemporal variations in the mechanism of action of different drivers on EH， and targeted ecological management strategies should be formulated in conjunction with the actual situation of EH response to natural and human activities when promoting ecological engineering and economic development. The findings provide a scientific basis for ecological restoration and conservation in Guizhou Province and offer new insights for EH assessment and management in other regions. |
