COMPREHENSIVE ASSESSMENT ON RIVER HABITAT IN DONGJIANG RIVER (HUIZHOU REACH) BASED ON ORDER RELATION METHOD

摘要

In order to assess the river habitat quality of Dongjiang river (Huizhou reach), we developed a hierarchical structure model, which including 12 indices in three aspects: river water habitat, riverside habitat and riverway habitat. An ordering relation method, improved by interactive decision making and index scale, was employed to determine index weight, and their importance. And based on grading 12 indices and river habitat quality, habitat quality of 15 investigation stations are assessed, and the relationship between habitat quality and water physicochemical indices, benthic animals and riparian land-used type has been analysed.