Research on Identification and Evaluation of Urban Damaged Ecological Space:Taking Beijing Haidian North New Area and Yizhuang New City as Examples
Identifying the damaged urban ecological space is the key link of implementing urban ecological restoration and building urban green infrastructure.The existing research focuses on the construction of urban ecological security patterns at the macro scale and the ecological restoration technology at the micro level,while the research on the discrimination and accurate identification of damaged ecological space in cities and districts is less.Taking Haidian Northern New Area and Yizhuang New City as research cases,through the data system of more than ten years'construction period to study the dynamic changes of urban ecological space in clusters and centralized cities,the identification and evaluation system of urban damaged ecological space was established and the damaged ecological space was identified.The results showed that the damage of urban ecological corridors was more serious than that of ecological patches,especially along rivers;The damaged ecological patches in the city are mostly concentrated in the high-class road intersection area and the green space of a single forest type.Therefore,the focus of urban ecological space optimi-zation and improvement should fully reserve the ecological space around rivers and important urban traffic corridors,ensure the connectivity of urban corridors and increase the plant diversity of green space.
urban ecological spacedamagedHaidian North New AreaYi Zhuang New Cityidentification and evaluation
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