Construction of Ecological Security Pattern in Qamdo City Based on MSPA and Circuit Theory
[Purposes]Under the background of ecological civilization construction,the construction of re-gional ecological security pattern based on urbanization in Qamdu City is conducive to promoting the co-ordinated development of regional ecology and economy,ensuring the stability of regional ecosystem,and promoting the strategic development of territorial space.[Methods]B ased on MSPA and circuit theory,the ecological source area,ecological corridor and ecological node of Qamdu City were identified respec-tively,and the ecological security pattern of Qamdu City was constructed.[Findings]There are 20 eco-logical sources and 44 ecological corridors in Qamdu City,of which 16 are key ecological corridors and 28 are general ecological corridors,and 13 ecological spots and 14 ecological obstacles are extracted.The ecological source areas are mainly distributed in the northern and eastern parts of the corridor,the ecological corridor flows along the Jinsha River and Lancang River,and the ecological pinch points and ecological obstacle points are concentrated around the corridor path.[Conclusions]By constructing the ecological security pattern of Qamdu City,ecological restoration zones were carried out,including eco-logical conservation area,ecological restoration area and ecological improvement area,and correspond-ing restoration measures were proposed based on the actual situation.The research results provide some reference and theoretical support for the future restoration of national space and the construction of urban ecological security pattern.