Urban–Rural Interface Dynamics in an Intermediate Andean City: An Integrated Territorial Taxonomy from Loja, Ecuador

This study examines the urban–rural interface of Loja, Ecuador, as a differentiated socio-ecological system shaped by environmental structure, the persistence of productive land, reliance on infrastructure, and terrain-adaptive settlement patterns. An integrated territorial taxonomy was developed using a four-phase methodological framework that combined morphological analysis, socio-territorial characterization, adaptive tectonic interpretation, and multivariate synthesis. Ten representative polygons located within Loja’s Andean periphery were evaluated using indicators of Biotic Porosity (BP), Degree of Hybridity (DH), Infrastructure Dependency (ID), and Alimentary Autonomy Extent (AAE), complemented by spatial analysis, field verification, and exploratory correlation assessment. The results revealed strong positive associations between socio-territorial hybridity and alimentary autonomy (ρ = 0.92), and strong negative associations between hybridity and infrastructure dependency (ρ = −0.88). A moderate positive relationship was identified between biotic porosity and hybridity (ρ = 0.67). The analysis also identified three adaptive tectonic typologies—Terracing, Cantilever, and Platform Urbanization—and a territorial taxonomy composed of Resilient, Adaptive, and Consolidating Edges. These findings demonstrate that the Andean urban periphery operates as a heterogeneous continuum rather than a homogeneous expansion zone. Although the statistical relationships should be interpreted as exploratory due to the limited sample size, the framework provides a useful basis for comparative research and resilience-oriented planning in intermediate mountain cities undergoing rapid territorial transformation.