Development of ecological indicators—a methodological framework using compromise programming

Ecological assessments often rely on indicators to evaluate environmental conditions. An ecological indicator integrates discrete pieces of information representing condition of resources, magnitude of stresses, exposure of biological components to stress and related impacts and consequences. This paper describes our efforts to develop an ecological indicator based on information routinely collected during irrigation systems operation from projects in Greece. Compromise programming is used for the development of ecological indicators. The indicators can be used for decision making in order to evaluate different irrigation policies for irrigation water management when the water is limited. The results of the alternative policies are compared and conclusions for the application of the methodology are drawn. The study indicated that ecological indicators could be incorporated to select alternatives concerning water delivery. Conclusively, the methodology can be incorporated in ecological assessment and program studies.