River restoration in five dimensions

摘要: 1. This paper provides a synthesis of the information presented at River Restoration '96 under series headings—described here as five ‘dimensions’. 2. The conceptual dimension addresses motivation for restoration, and whether intervention by restoration should happen all. Even when river projects are motivated particular sectoral interests, they be set within broader environmental framework. 3. spatial considers lateral, longitudinal, vertical connectivity systems, relationship between functioning rivers. There is growing acceptance importance not only connections channels their adjacent floodplains, but also need to take account processes operating catchment scale. 4. temporal describes both history attempting reconstruct past landscapes, requirement post-project appraisal once scheme completed. Systems classification evaluation essential pre-project planning appraisal. 5. often focuses on technological dimension, wide array engineering techniques currently used land. Analytical such mathematical modelling GIS now commonly applied projects, it important that sophisticated analysis matched base sound scientific data. 6. presentational plays valuable role in unlikely succeed without support cross-section society. However, whilst can bring range benefits, must never portrayed an alternative maintaining high quality undegraded © 1998 John Wiley & Sons, Ltd.