【作者】 杨超； 戴菲； 陈明； 裴子懿；

【机构】 华中科技大学建筑与城市规划学院；

【摘要】 武汉市是长江经济带的重要战略城市,高强度的城镇化影响了市域生态资源连通性,建设生态网络是切实可行的应对办法。本文结合MSPA和电路理论,选取研究区连通性指数最高的10个斑块构建生态网络;采用电流密度识别出6个生态踏脚石,对增加踏脚石前后的生态网络进行对比分析,并通过阈值分析确立了生态廊道的宽度。结果表明,优化后的网络结构包含廊道37条,总长584km,优化后网络的闭合度、连接度、点线率分别提高了0.59、0.96、0.39,通过阈值分析得出,武汉市的廊道最优宽度为200m。更多还原

【Abstract】 Wuhan is an important strategic city in the Yangtze River Economic Belt.The high intensity of urbanization has affected the connectivity of ecological resources in the city.Therefore,the construction of ecological network is a feasible solution.In this paper,based on MSPA and circuit theory,10 patches with the highest connectivity index in the study area were selected to construct the ecological network.Five ecological stepping stones were identified by current density,and the ecological network before and after stepping stones were added was compared and analyzed,and the width of ecological corridor was established by threshold analysis.The results show that the optimized network structure contains 37 corridors,with a total length of 584 km.The closure degree,connection degree and point-line rate of the optimized network have been improved by 0.59,0.96 and 0.39 respectively.Through threshold analysis,it is concluded that the optimal width of wuhan corridor is200 m.更多还原