Institutional mapping of Oregon coastal watershed management options

Institutional mapping is a technique that builds on the logic of Geographic Information Systems (GIS). In GIS, coverages placed over a base map show spatial relations. Social institutions are more difficult to ‘‘map’’ physically. Institutional mapping uses three social coverages—scale, power, and capital. Four sets of institutions affecting watershed management—salmon restoration, water quality improvement, forest management, and land-use planning—illustrate the institutional mapping process. Analysis indicates that water quality institutions under the Clean Water Act (CWA) have a slightly higher ranking on scale, power, and capital. Based on these rankings, CWA requirements are predicted to have greater potential for improving watershed health in coastal settings than institutions associated with salmon restoration, forest management, or land-use planning. The differences are not large, and overlapping goals for protecting salmon, improving water quality, sustainable forest management, and effective land-use planning institutions offers the strongest prospect for improved watershed health. r 2002 Elsevier Science Ltd. All rights reserved.