MULTISCALE RIVER ENVIRONMENT CLASSIFICATION FOR WATER RESOURCES MANAGEMENT

摘要: ABSTRACT: River Environment Classification (REC) is a new system for classifying river environments that based on climate, topography, geology, and land cover factors control spatial patterns in ecosystems. REC builds existing principles environmental regionalization introduces three specific additions to the “ecoregion” approach. First, assumes ecological are dependent range of associated landscape scale processes, some which may show significant variation within an ecoregion. arranges controlling hierarchy with each level defining cause at given characteristic scale. Second, characteristics rivers responses fluvial (i.e., hydrological hydraulic) processes. Thus, uses network channels watersheds classify sections river. When mapped, has form linear mosaic classes change downstream direction as integrated watershed change, producing longitudinal typical Third, assigns individual class independently objectively according criteria result geographically independent framework wide geographic dispersion rather than schemes from ecoregion been developed provide multiscale management used map New Zealand 1:50,000 mapping