Based on high-resolution Google Earth images,settlements in Yunnan section of the Lancang River basin were extracted.We use the kernal density and the optimized hot spot analysis methods to display spatial pattern of the settlements.Random forest model is used to explore the natural environmental impact factors of residential areas distribution.The results show that settlements in Yunnan section of the Lancang River basin are mainly distributed in the middle reaches and the upper reaches along the river.The random forest model contains 11 environmental factors,and the top three factors in importance are the nearest distance to forest,altitude and the nearest distance to glacier/snow.The partial dependence plots show the response trend of settlements to environmental factors.This research results could provide guidance for rational use of land resources,making regional development and construction plans,and coordinating the relationship between humans and the environment.
展开▼
