河套灌区渠系-聚落系统的空间生成逻辑与阶段性演化OACHSSCD

The formation of settlements in the Hetao Irrigation Area and the excavation of the artificial Yellow River diversion canals are highly intertwined in time.This study focuses on the Houtao area from the late Qing to the early years of the People's Republic of China,using historical maps,remote sensing images,and field surveys to explore how the canal network,land organization,settlement system,and grassroots governance co-evolved.Results reveal:1)Although settlements and canal digging often advanced simultaneously at the local scale,the canal system played a clear spatial leading role regionally.2)The canals shaped a spatial order where"fields follow canals,villages are embedded at nodes,and roads run along canals".3)The"sluice-village-field"unit coupled water control,agriculture,and village organization,transforming the canal system from mere infrastructure into the foundation of spatial and governance order.This"canal-determined order"evolved through three stages:local canal construction,stabilization of the main canal framework,and restructuring of a unified water allocation system.