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Main Title: Scaling Effects in Spatial Multi-Criteria Decision Aggregation in Integrated River Basin Management
Author(s): Taha, Rania
Dietrich, Jörg
Dehnhardt, Alexandra
Hirschfeld, Jesko
Type: Article
Language Code: en
Abstract: For river basin management plans (RBMPs), measures are aggregated from smaller spatial units (e.g., water bodies) to the catchment or basin scale. River basin management plans measures in integrated management are evaluated using multiple criteria, e.g., ecological and socio-economiccriteria, etc. Therefore, aggregation often combines spatial analysis and multi-criteria decision analysis (MCDA). Herein, we investigate: (1) the effect of applying different aggregation pathways on the outcome of the RBMP using the technique for order of preference by similarity to ideal solution (TOPSIS) as an MCDA method, (2) the scaling effects considering water body, sub-catchment, and river basin scales, and (3) the effect of using global and local criteria weighing on the final ranking of alternatives. We propose two approaches to aggregate ranks for the entire basin: using non-dominated alternatives only and using a normalized TOPSIS relative closeness value. The results show no variation in the final non-dominated alternative for both aggregation pathways. However, we note rank reversal among the dominated alternatives. These results suggest that scaling effects need to be considered in spatial MCDA.
Issue Date: 20-Feb-2019
Date Available: 26-Aug-2019
DDC Class: 600 Technik, Technologie
550 Geowissenschaften
Subject(s): multi-criteria decision analysis
spatial compensation
criteria aggregation
river basin management plan
technique for order of preference by similarity to ideal solution
Sponsor/Funder: BMBF, 0330211, Verbundvorhaben: Flußgebietsmanagement für die Werra - Teilvorhaben 2: Wasser- und Stoffhaushalt, Entscheidungsunterstützungssystem
Journal Title: Water
Publisher: MDPI
Publisher Place: Basel
Volume: 11
Issue: 2
Article Number: 355
Publisher DOI: 10.3390/w11020355
EISSN: 2073-4441
Appears in Collections:FG Landschaftsökonomie » Publications

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