註釋 The international, multipartner, multiagency nature of the ICP Forests conditioned its design from the beginning, with a number of trade-offs necessary to accommodate specific needs, perspectives, and monitoring “traditions.” Reconciling these differences with the program objectives is a major challenge for program managers and stakeholders. In this chapter, basic design concepts and principles of the ICP Forests are described, together with more recent efforts undertaken to respond to that major challenge. Emphasis is placed on fixed-area plot design for both Levels I and II monitoring intensity, as well as the need to maintain data time series. The newly developed Quality Assurance perspective, the enhanced data management system, and the policy for intellectual property, publication, and data distribution are also important elements of the entire monitoring design. 