金沙江流域生态保护与建设决策支持系统

利用地理信息系统对生态保护与建设相关的地理信息进行采集、管理、分析,对政府部门的决策是一种有效的技术支撑。本文主要介绍“金沙江流域(云南部分)生态保护与建设决策支持系统”的体系结构设计和系统实现。

The Design and Implementation of Jinsha River in Yunnan Province:Ecological Conservation and Construction DSS

Jinsha river basin suffers from most serious soil and water loss among the six large watersheds in Yunnan province. To establish the Ecological Conservation and Construction decision-supporting system (DSS) in the river basin is of vital importance to the protection of resources and the local government's decision making through using the technology of GIS to capture, manage, analyze and apply eco-geographic information. This paper mainly discusses the application characteristics, architecture, and implementation of the project, namely, Jinsha River in Yunnan Province:Ecological Conservation and Construction DSS. Ecologists used to research the ecological status quo and transformation by measuring and analyzing with simple tools in paper maps and forms. But in ecological conservation and construction DSS, the GIS technology was introduced to overlay all kinds of eco-related information on 1∶250,000 and 1∶50,000 E-maps and TM images, spatial data and attributes data were uniformly managed to support decision for ecological conservation. Based on territorial ecological research, we developed and described an effective spatial analysis model for natural forest preservation by converting cultivated land into forest. The design and implementation of territorial ecological evaluation and forecast function was also introduced in this paper.