Abstract
A systems, holistic, or ecosystem approach is often advocated for water management, and has led to the emergence of integrated water resource management, or IWRM. Such an approach can be interpreted as ‘comprehensive’ or ‘integrated’, and analysts, planners, and managers need to understand the difference. Edge or boundary problems always are encountered when applying a holistic approach, and design of institutional arrangements cannot eliminate these problems but can minimize them. IWRM often does not have a statutory basis, which can lead to implementation challenges. By linking IWRM to land-use planning and official plans at the local level, IWRM can be given credibility, as well as be systematically connected to land-based issues.