基于生态风险空间识别的城市山体生态 修复与分类保护策略研究 ——以济南市 西部新城为例

作为城市重要的自然与景观资源的山体,在城市建设用地快速增长与无序扩张中,往往会受到不同程度的侵占。山体生态修复作为城市双修的重要内容,目前实践主要集中在单个破损山体修复工程技术与山体公园建设方面。本研究有别于传统生态修复手段,基于生态风险空间识别,从区域生态安全角度,构建了"风险诊断-空间识别-格局构建-分类保护"的山体生态修复的研究框架,对济南市西部新城山体进行生态风险动态评价与植被覆盖动态分析,识别区域内重要的高生态风险点,从生态过程完整性与生态系统服务优化视角出发,构建"源-廊-战略点"的山体生态保护与修复空间体系,提出西部新城山体分类保护与生态修复策略,以期为城市山体相关生态修复与景观规划工作提供参考。

Research on Urban Mountain Ecological Restoration and Classified Protection Strategies Based on Spatial Identification of Ecological Risk: Taking the West New District of Jinan City as an Example

As an important natural and landscape resource in the city, urban mountain is often invaded to different degrees in the process of rapid growth and disorderly expansion of urban construction land. Yet, as an important part of "Urban renovation and ecological restoration", at present, the practices mainly focuses on single damaged mountain restoration engineering technologies and mountain parks'' constructions. Different from the traditional ecological restoration methods, based on the spatial identification of ecological risks and from the perspective of regional ecological security, this study has constructed a research framework of mountain ecological restoration, which includes "risk diagnosis- spatial identification-pattern construction-classified protection". Based on the ecological risk dynamic assessment and the analysis of dynamic change in NDVI on the mountain of the West New District of Jinan city, this paper identified the important high ecological risk points. The paper and further provides strategies of a mountain ecological protection and restoration space system of "source-corridor-strategic point" according to the integrity of the ecological process an