“数字小流域”构建的理论与方法

A Theory and Some Methods to Build Digital Small Watershed

在数字小流域构建的理论、技术背景及可行性分析的基础上,提出了数字小流域构建的总体模式,并从框架结构、基本功能等方面对数字小流域构建的技术方法进行了探索.根据数字地球的基本概念,从小流域信息化建设出发对数字小流域发展的三个阶段等进行了设想;指出实现数据共享与综合分析,为小流域综合治理提供科学的技术平台和决策依据是数字小流域实现的最终目标.

Small watershed is a basic harness unit of Loess Plateau, its digitalization is the rudimental premise to carry out and to realize Digital Loess Plateau, and Digital Small Watershed (DSW) is the magnified impact of Digital Loess Plateau at the level of small watershed. Based on theory, technological background and feasibility analysis of DSW construction, this paper puts forward the whole pattern of constructing digital small watershed and explores the technological ways of building digital small watershed in terms of the framework, basic functions, and so on. According to the concept of Digital Earth, the paper conceives three stages of developing Digital Small Watershed. We also suggest that it is the final aim to share data,to realize synthetic analysis and to supply a scientific technical platform and decision grounds for synthetic harness of small watershed.