建立了一种面向自动综合的河系结构化数据模型，模型包含了大量水系综合所需要的信息。
A structural river network data model based on automated generalization oriented is developed, which contains lots of information needed by river network generalization.
以树状河系为研究对象，分析其空间特征，建立基于图论的水系网矢量模型。
This paper analyzed the spatial characteristics of tree-like river networks, and built vector model based on graph theory.
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