Abstract

Demonstrating a multi-criteria evaluation (MCE) decision-making tool using geographical information systems (GIS) is the main objective of this chapter. We use wetlands management as an example to demonstrate the applicability of the MCE for complex spatial decision-making process involving tradeoffs. Wetlands are an integral part of the world's ecology and, therefore, their management and maintenance needs to be given high priority. However, due to man-made changes, especially with large-scale urban developments, many wetlands are now in a fragmented condition that is preferably avoided. Modern technology, which includes remotely, sensed satellite data and GIS have excellent capabilities for studying and analysing the spatial issues regarding wetlands management. This chapter demonstrates the use of Fuzzy logic map overlays for MCE as an attractive alternative to weighted linear combination and Boolean map overlays commonly used in GIS analysis.

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