Integrating a GIS with an expert system to identify and manage dryland salinization

Abstract To manage secondary dryland salinization successfully a coordinated regional management approach must be implemented. This paper considers the development of an interactive land classification methodology that identifies key land areas associated with the problem and then conveys information regarding the decision-making process to the end user. The developed system, Salt Manager , utilizes an expert system, a geographic information system, remotely sensed information and a relational database management system to implement the land classification method. Consideration is given in the paper to the salinization process, the problem of system integration and the provision of contextual information via graphic and textual formats.