摘要：Rivers which are important objects in real world need be appropriately described in Geographic Information System to be conveniently inquired and detailed analyzed for human being. Many spatial models were proposed in the past, but spatial models with regard to river channel plan- forms (RCPs) are lesser-known. This work proposes spatial models of river channel planforms (SMRCPs) based on the properties of river channel planforms in the real world and the spatial relation theory. We proposed the segment conditions based on RCPs properties in Geographic Information System to describe rivers in the real world by SMRCPs in detail.
