摘要
郑州是国家综合交通的重要节点,发达的交通网络给城区带来了景观破碎化等问题,构建绿地生态网络可以改善城市生态空间结构,提高城市生态系统的稳定性。文章根据形态学空间分析法、dPC指数计算、最小费用距离模型和电路理论,对河南郑州环城高速公路围合区进行绿地生态网络的构建及优化。结果表明:在研究区内识别出37个生态源地,模拟生态廊道58条(东北和西南部较为集中);优化后的绿地生态网络共有46个生态源地和78条生态廊道,增设脚踏石19个,修复生态断裂点60个,生态源地和潜在生态廊道基本覆盖整个研究区域。
Zhengzhou is an important node of national comprehensive transportation network.The developed transportation network brings problems such as landscape fragmentation to its urban area.The establishment of green space ecological network can improve the urban ecological spatial structure and increase the stability of urban ecosystem.This study establishes and optimizes the green space ecological network in the enclosed area of the expressway around Zhenzhou City in Henan province by using morphological space pattern analysis,dPC index,minimum cost distance model and circuit theory.The results show that 37 green patches in the study area are identified as ecological sources,and 58 simulated ecological corridors are concentrated in the northeast and southwest.After optimizing the ecological network,there are 46 ecological sources and 78 ecological corridors,basically covering the whole study area.In addition,19 stepping stones are identified,and 60 ecological fracture points are rehabilitated.
作者
宋利利
夏艺菲
Song Lili;Xia Yifei(School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology,Xinxiang 453003,Henan,China;Henan Engineering Center of Horticultural Plant Resource Utilization and Germplasm Enhancement,Xinxiang 453003,Henan,China)
出处
《中国城市林业》
2022年第6期57-63,共7页
Journal of Chinese Urban Forestry
基金
国家自然科学基金项目“基于“结构-效能”关联的都市区生态空间网络演变与优化调控研究:以郑汴都市区为例”(41901237)
河南省科技攻关项目“郑汴都市区国土空间配置中生态系统服务功能增效关键技术研究及应用”(212102310417)。
关键词
绿地生态网络
形态学空间格局分析
景观连通性
电路理论
green space ecological network
morphological space pattern analysis
landscape connectivity
circuit theory
