摘要
淮河生态经济带发展必须坚持绿色发展方向,生态安全建设成为重要保障.基于生态学逻辑架构构建指标体系,运用GIS空间分析、景观指数和突变理论模型综合指标评价结果,探索2000—2020年淮河生态经济带生态安全格局和演变规律.结果表明:淮河生态经济带生态安全状况整体较好,生态安全指数空间上呈现西南高东北低、高值集中低值分散的基本格局;20年来淮河生态经济带生态安全指数呈明显下降趋势,高值区基本维持稳定,低值区变化显著;近10年来一系列生态环境保护措施收到了明显成效,但城市用地的快速扩张依然是区域生态安全最显著的负面影响因素.建议从空间管控、过程调控、制度创新3个维度开展系统性协同治理.
The development of Huaihe River Ecological Economic Belt should be oriented towards green development,with ecological security construction serving as a critical safeguard.An index system was constructed based on an ecological logic framework,and GIS spatial analysis,landscape index analysis,and mutation theory-based comprehensive index evaluation were integrated to explore the pattern and evolution of ecological security in Huaihe River Ecological Economic Belt from 2000 to 2020.The results reveal that the overall ecological security status of the belt is relatively favorable,with the spatial distribution of the ecological security index exhibiting higher values concentrated in the southwest and lower values dispersed in the northeast.Over the past 20 years,the ecological security index exhibits a significant downward trend,characterized by relatively stable high-value areas and significant changes in low-value areas.In the last 10 years,a series of ecological environmental protection measures have yielded notable improvements,although the rapid urbanization of land continues to pose the most significant threat to regional ecological security.To tackle the ecological security challenges in Huaihe Ecological Economic Belt,it is recommended to carry out systematic collaborative governance from three dimensions:spatial control,process regulation,and institutional innovation.
作者
曹蕾
刘玲艳
王怀军
黄玉叶
李影慧
Cao Lei;Liu Lingyan;Wang Huaijun;Huang Yuye;Li Yinghui(School of Geography&Planning,Huaiyin Normal University,Huai'an 223000,Jiangsu,China)
出处
《江苏师范大学学报(自然科学版)》
2025年第1期9-16,共8页
Journal of Jiangsu Normal University:Natural Science Edition
基金
教育部人文社会科学研究规划项目(21YJCZH156)
国家级高等学校大学生创新训练计划项目(202210323002Z)。
关键词
生态安全评价
突变模型
景观指数
淮河生态经济带
ecological security assessment
mutation model
landscape index
Huaihe River Ecological Economic Belt
