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Tuesday, April 10 • 10:30am - 10:45am
URBAN AND REGIONAL PLANNING: Assessing Landscape Ecological Risk in Metropolitan Areas Through an Adaptive Cycle Framework

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AUTHORS: Fanghan Luo*, Jian Peng – Peking University

ABSTRACT: Cities are suffering various natural disasters due to rapid urbanization and global climate change. Landscape ecological risk assessment is conducive to identifying disaster stresses and guiding risk prevention in critical areas. However, few studies have focused on characterizing the dynamic processes of urban landscape ecological risk. In this article, the adaptive cycle in resilience theory was incorporated into a risk assessment framework for Beijing that used three criteria: “potential”, “connectedness” and “resilience”, integrating risk sources of exposure and disturbance. The results showed that the ecological risk of “potential” and “connectedness” weakened radially from urban centers to the surrounding outskirts. The distribution of “resilience”, “exposure” and “disturbance” were similar to the final landscape ecological risk pattern of Beijing, which exhibited a concentric pattern of “higher risk”, “highest risk” and “lowest risk” sequentially from urban centers to the outskirts. The results reflected the fact that people living in urban centers had already taken ecological restoration measures to reduce risk, while continuous urban construction in the surrounding areas increased the ecological risk. In terms of the risk adaptive cycle, six districts were in the reorganization O-phase, four districts were in the exploitation r-phase, and the other five districts were in the conservation K-phase. The resilience theory helped in understanding the evolution mechanism of urban landscape ecological risk, as well as its geographical-ecological significance. As a consequence, the assessment provides scientific guidance for improving the adaptability of an urban system as well as for implementing resilient urban planning.

Tuesday April 10, 2018 10:30am - 10:45am CDT
Grant Park Parlor

Attendees (3)