顾及形态特征的水系自适应综合方法研究

项目名称： 顾及形态特征的水系自适应综合方法研究

项目编号： No.41501496

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 天文学、地球科学

项目作者： 张翎

作者单位： 南京师范大学

项目金额： 23万元

中文摘要： 顾及形态特征的自适应地图综合，是考虑空间对象集合/群组的不同形态特征，自动调整地图综合的策略与方法，是结构化综合的重要内容，也是面向地理特征综合的重要体现。水系形态特征在一定程度上反应了所在流域的地质构造和地貌类型等地理特征，其重要性被众多学者所肯定，但是将其直接运用到水系自动综合中的研究还处于起步阶段。本课题以表达为线状要素的河流（包括渠道等人工水体）所组成的河流网络为研究对象，研究河网的空间分布和结构关系，对水系形态进行自动识别，并针对不同形态的水系进行“分而治之”的自适应综合，有针对有区别的将形态特征应用到河流选取以及河流简化当中，从而保证综合后水系的形态特征的合理性。本课题的研究将“形态特征”引入水系综合体系，尝试从地学角度考虑地图综合问题，是对地图综合理论的扩展与补充。

中文关键词： 数字地图综合；水系形态；模式识别；自适应综合；水系综合

英文摘要： Self-adaptive map generalization with consideration of patterns is a map generalization method that adjusts the generalization strategy automatically according to different pattern characteristics of spatial objectives. It is an important issue in structural map generalization, and also a significant exemplification of geographical feature oriented map generalization. A drainage pattern can reflect the geographical characteristics of a river network to a certain extent, because it depends on the topography and geology of the land. The importance of drainage pattern is confirmed by many researchers, but it is still in the early stage to apply drainage patterns directly into the map generalization process. The project focuses on rivers including ditches made by human in drainage system. Usually, rivers are represented as line features in GIS, and always connect together to form networks, achieving a particular drainage pattern. The project starts from the spatial distribution and structural relationship in river networks, and then automatically recognizes the drainage patterns. According different drainage patterns, river networks are treated differently. The characteristics of drainage pattern will be considered into the river network generalization process such as tributary selection and especially selected tributaries simplification, and the purpose of this project is going to preserve a river network with a reasonable drainage pattern after generalization. This project takes river network generalization issue with consideration of drainage patterns for the first time. It tries to resolve map generalization from geography aspect, which is an extension and complement of map generalization theory.

英文关键词： Digital map generalization;Drainage pattern;Pattern recognition;Self-adaptive generalization;River network generalization