Building a Resilient Urban Ecological Network Based on PLUS-MOP Model
Land use change out of urbanization is the main cause of urban ecosystem degradation,and strengthening the resilience of ecological networks is conducive to improving ecological benefits.In order to promote better adaptation of the ecological network to future urban development,this paper constructs three simulation scenarios of ecological network in Harbin City in 2030 using PLUS-MOP model from the perspective of land use evolution and assesses their resilience in the two dimensions of structural resilience and functional resilience.The results show that:1)The enhancement of structural resilience of ecological networks is related to the degree of source fragmentation,ecological corridor length and network transmissibility;2)The functional resilience of ecological networks is closely related to the number of important nodes and the way to remove.Comparing the changes in ecological network resilience before and after removing important nodes can help further identify key ecological nodes.Suggestions are proposed for ecological space restoration in Harbin,including the conservation of the integrity of key nodes,the improvement of connectivity between key nodes,and more emphasis on the protection and planning of stepping stones,aiming to provide new ideas for exploring the urban ecological networks that can adapt to the long-term external changes.
land use simulationurban ecological networknetwork resiliencePLUS-MOP model
NETL
NSTL
万方数据
