摘要
采用形态空间格局分析结合目标物种的方法确定结构性绿地内源生境,基于最小阻力模型以及图论的原理和方法,对郑州中原区结构性绿地进行功能性连接分析并给出优化策略。结果表明(1)中原区整体斑块连接度较差,1500 m为源生境的最佳距离阈值,在该距离阈值下共形成8个组分115条连接路径,识别出6个重要斑块、5条需要重点保护路径及9条需要优先恢复的路径;(2)拟增9个垫脚石斑块可将生境网络修复完整且连接度指数提升1.3倍。通过对城市绿地结构空间布局的研究,为城市绿地系统规划提供了新视角,同时为城市绿地网络构建提供了底线方案。
This paper analyzes the current connection of urban structural green space in order to construct a perfect urban green space network.Using Morphological Spatial Pattern Analysis,it determines the source habitat in the research area.The principle and method of Least-cost model and graph theory are used to analyze the functional connection of the greenbelt in the Zhongyuan District area and give the optimization strategy.The results show that the connectivity of habitat patches in Zhongyuan area is poor,1500 m as the optimal distance threshold for optimizing the greenbelt network in the Zhongyuan District area.Refer to this distance threshold,a total of 8 components and 115 connection paths were formed in the entire area,6 important plaques,5 migration paths that need to be protected and 9 migration paths that need to be restored in priority were identified.It is planned to increase 9 stepping stone plaques to increase the overall connectivity index of the central region to 1.3 times of the original,so that the overall structure can be transformed a complete network.Through the study on the spatial layout of urban green space structure,it provides a new perspective for the urban green space system planning,and provides a baseline scheme for the construction of urban green space network.
作者
郭玲子
徐恩凯
汤瑶
田国行
Guo Lingzi;Xu Enkai;Tang Yao;Tian Guohang(College of Landscape Architecture and Art, Henau Agricultural University, Zhengzhou 450002, China)
出处
《环境科学与管理》
CAS
2021年第2期28-33,共6页
Environmental Science and Management
基金
河南省城乡绿地资源调控与景观生态设计学科创新引智基地项目(GXJD006)
河南省高等学校重点科研项目“郑州市绿地空间结构生态调控与格局优化关键性技术研究”(18A220003)。
关键词
郑州
结构性绿地
源生境
绿地网络
Zhengzhou
structural green space
source habitat
green space network
