From Spatial Patterns to Sustainability Pathways: A Culture-Ecology-Economy Framework for Characteristic Village Development in Southwest China’s Ecologically Sensitive Ethnic Regions

Developing regions rich in ethnic cultures face structural tensions between cultural heritage preservation, ecological conservation, and economic development. Yet existing research analyzes village types in isolation, overlooks non-additive factor interactions, and lacks frameworks connecting spatial heterogeneity to differentiated sustainability pathways. This study addresses these three gaps through integrated spatial analysis of 4083 characteristic villages across five nationally designated types in Southwest China, a region harboring over 40% of China’s Traditional Villages and high densities of Forest Villages, Key Tourism Villages, Ethnic Minority Characteristic Villages, and Historic and Cultural Villages. Kernel Density Estimation, Average Nearest Neighbor analysis, Standard Deviational Ellipse, and Geographical Detector methods are employed in a three-stage analytical progression. Spatial characterization reveals pronounced heterogeneity with “large-scale dispersion, small-scale agglomeration” patterns and systematic cross-type spatial co-location in high-heritage, high-vulnerability zones. Mechanism quantification shows that intangible cultural heritage (q-values 0.66–0.78) and GDP per capita (q-values 0.68–0.82) are dominant drivers whose pairwise interactions exceed individual effects by 40–60%. Sustainability classification translates q-value-weighted composite indices into four context zones across 506 counties, Culture-Ecology Tension Zones (22.7%), Economic Isolation Nodes (17.0%), Tourism-Driven Development Corridors (19.6%), and Balanced Development Potentials (40.7%), each exhibiting a distinct configuration of cultural, ecological, and economic conditions that necessitates differentiated pathways. The “culture-ecology-economy” tripartite framework advances sustainability science in three ways: it empirically identifies non-additive spatial interactions as generative mechanisms of heterogeneity, achieves a methodological progression from pattern description to sustainability diagnosis, and reconceptualizes cultural heritage from a development constraint into a measurable sustainability asset. The framework is transferable to analogous mountain regions globally where heritage-rich communities confront coupled ecological and economic vulnerabilities.