ABSTRACT
There is an interactive process among three different levels in a water management system, i.e. field, system and delta level. Any development in one level may influence the performance of the other levels. The assessment of the impact of a development plan for a tidal lowland area, for planning purposes, should be based on a macro-to-micro approach (delta-system-field level). Due to the fact that the hydro-topographical conditions are not constant in time and due to the heterogeneity (spatial distribution characteristics), it is recommended that for every tidal lowland development scheme, a systematic monitoring and evaluation program should be considered. Based on the monitoring and evaluation results of the pilot project in Telang Saleh, it is proposed that a pilot project should cover field and system levels. Under this pilot project, the dynamic of soil and water characteristics should be monitored and the results can be used as a feedback for improvement of the soil and water management system.
