资源开发与市场2026，Vol.42Issue(6)：862-870,9.DOI:10.3969/j.issn.1005-8141.2026.06.007
川西高山峡谷区乡村聚落空间格局及其梯度效应
Spatial distribution patterns and gradient effects of rural settlements in the western Sichuan alpine gorge region
摘要
Abstract
The high-mountain gorge region of western Sichuan,on the eastern side of the Qinghai-Xizang Plateau,is one of the world's most prominent topographic gradient zones,with the most ecologically sensitive ecosystems.The systematic quantification and gradient response mechanism of county-level settlement spaces in the high-mountain gorage region of western Sichuan still need to be further explored.This paper used kernel density estimation,average nearest neighbor index(ANN),and spatial autocorrelation analysis to uncover the gradient response mechanisms of rural settlement spatial distribution patterns in Mao County,which served as a represent-ative case study region.The results showed that:① Rural settlements in Mao County had"strong overall clustering,stark density gradi-ents,and clustered differentiation,"with a county-level ANN index of 0.235 and settlements density variations exceeding sevenfold at the township scale.② Natural vertical gradients strongly influenced settlement distribution:61.49％of settlements were situated in low-elevation zones(896～2 068 m),with 77.46％concentrated on gentle slopes(＜25°).South slopes had much more settlements than north slopes,with 61.30％located at mid-slope altitudes to balance catastrophe avoidance and resource availability.③ Cultural horizontal gradients altered settlement clustering patterns:88.96％of settlements were within 387 m of roadways,whereas 84％were close to agriculture(within 446 m).Village-level administrative centers had a gravitational radius of 1 993 m,within which 83.85％of all settlements lied.④ Disaster hazards intensified human-land conflicts,with 61.74％of settlements located in medium-to-high geological danger zones(within 840 m of hazard spots).Based on these findings,this paper proposed settlement optimization strategies centered on"strictly upholding bottom lines,reconstructing systems,enhancing resilience,and stimulating vitality,"which provides a scientific basis for improving settlement resilience and advancing rural revitalization in high-mountain gorge regions.关键词
乡村聚落/空间梯度/灾害风险/高山峡谷区Key words
rural settlements/spatial gradient/disaster risk/high-mountain gorge region分类
社会科学引用本文复制引用
石晓娜,王铁霖,席昕,卿文华..川西高山峡谷区乡村聚落空间格局及其梯度效应[J].资源开发与市场,2026,42(6):862-870,9.基金项目
四川省自然科学基金青年基金资助项目(编号:2022NSFSC1170). （编号:2022NSFSC1170）
