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Urban ecological security assessment for cities in the Beijing–Tianjin–Hebei metropolitan region based on fuzzy and entropy methods

Urban Land UseUrban GeographyFuzzy LogicEngineeringEnvironmental Impact AssessmentGeographyUrban EcologyUrban PlanningBeijing–tianjin–hebei Metropolitan RegionUrban GreeningUrban ScienceFuzzy Risk AnalysisUrban ClimateSocial SciencesEntropy MethodsUrban Environment