草地学报 ›› 2026, Vol. 34 ›› Issue (8): 2909-2920.DOI: 10.11733/j.issn.1007-0435.2026.08.015

• 研究论文 • 上一篇    

基于改进灰色模型的青海省生态安全演进预测及障碍度分析

郭婧1, 魏珍2, 周华坤3, 李宏林4   

  1. 1. 青海省社会科学院生态文明研究所, 青海 西宁 810000;
    2. 青海省社会科学院经济研究所, 青海 西宁 810000;
    3. 中国科学院西北高原生物研究所/青海省寒区恢复生态学重点实验室, 青海 西宁 810008;
    4. 青海大学/省部共建三江源生态与高原农牧业国家重点实验室, 青海 西宁 810016
  • 收稿日期:2025-12-26 修回日期:2026-03-29 发布日期:2026-08-04
  • 通讯作者: 李宏林,E-mail:honglinli@qhu.edu.cn
  • 作者简介:郭婧(1989-),女,汉族,青海西宁人,博士,副研究员,主要从事生态经济、环境生态学研究,E-mail:352097314@qq.com
  • 基金资助:
    国家黄河流域生态保护和高质量发展联合研究中心项目(2022-YRUC-01-0102);青海省科技厅基础研究面上项目(2025-ZJ-990M)资助

Prediction of Ecological Security Evolution and Obstacle Degree Analysis in Qinghai Province Based on an Improved Grey Model

GUO Jing1, WEI Zhen2, ZHOU Hua-kun3, LI Hong-lin4   

  1. 1. Research Department of Ecological Civilization, Qinghai Academy of Social Sciences, Xining, Qinghai Province 810000, China;
    2. Research Department of Economics, Qinghai Academy of Social Sciences, Xining, Qinghai Province 810000, China;
    3. Northwest Institute of Plateau Biology, Chinese Academy of Science; Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province, Xining, Qinghai Province 810008, China;
    4. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China
  • Received:2025-12-26 Revised:2026-03-29 Published:2026-08-04

摘要: 为探究青海省生态安全演进规律,本文基于PSR模型构建评价体系,结合障碍度分析与残差修正GM(1,1)-Verhulst方法,识别制约因素并开展短期预测,发现2005—2023年青海省生态安全综合指数由0.54提升至0.66,等级由“临界安全(Ⅲ)”跨越至“较安全(Ⅳ)”;形成“响应强化-状态改善-综合提升”演进路径;空间格局呈“东高西稳”的分异特征,东部地区率先进入“非常安全(Ⅴ)”等级;障碍机制由早期“压力主导”逐步转向“状态-响应双约束型”,生态系统结构质量与环境治理能力成为关键制约因素;短期预测显示,2028年生态安全指数预计接近0.73,稳定维持在“较安全(Ⅳ)”高位区间。未来需从强化响应转向提升生态系统韧性,实施差异化分区策略,支撑国家生态安全屏障建设。

关键词: 生态安全, 改进灰色模型, 演进预测, 障碍度

Abstract: To investigate the evolution pattern of ecological security in Qinghai Province, in this study we constructed an evaluation system based on the PSR (Pressure-State-Response) framework, integrated obstacle degree analysis with residual-corrected GM(1,1)-Verhulst modeling to identify constraining factors and conduct short-term forecasting. The results revealed that the comprehensive ecological security index in Qinghai Province increased from 0.54 to 0.66 during 2005-2023, with the security level upgrading from “Critical Security (Grade Ⅲ)” to “Relatively Secure (Grade Ⅳ)”. The evolution followed a trajectory of “response strengthening-state improvement-comprehensive enhancement”. Spatial distribution exhibited an “east-high west-stable” differentiation pattern, with eastern regions achieving the “Very Secure(Grade Ⅴ)” level ahead of others. The obstacle mechanism transitioned from early “pressure-dominated” to “state-response dual-constraint” type, indicating that ecosystem structural quality and environmental governance capacity have become critical limiting factors. Short-term prediction suggested that the ecological security index would approach 0.73 by 2028, stably maintaining a high-level “Relatively Secure(Grade Ⅳ)” status. Future efforts should shift from response enhancement to ecosystem resilience improvement, implementing differentiated zoning strategies to support national ecological security barrier construction.

Key words: Ecological security, Improved grey model, Evolution prediction, Obstacle degree

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