1 / 9

Evaluation of Water Resource Management Classes in Letaba Catchment via Multi-Criteria Analysis

This overview presents the implementation of the Water Resources Classification System and resource quality objectives for significant water resources in the Letaba Catchment. It focuses on a Multi-Criteria Decision Support System that evaluates various scenarios, considering ecological health, ecosystem services, and socio-economic implications. The evaluation involves rating ecological consequences, assessing economic indicators, and analyzing employment impacts. Emphasizing the role of multi-criteria analysis, the approach allows for comparing alternatives with quantifiable and non-quantifiable outcomes, guiding management class determinations.

lenora
Télécharger la présentation

Evaluation of Water Resource Management Classes in Letaba Catchment via Multi-Criteria Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Implementation of the Water Resources Classification System and Determination of the Resource Quality Objectives for Significant Water Resources in the Letaba Catchment 7: Overview of the Multi-Criteria Decision Support System to evaluate scenarios and identify draft Management Classes 3 April 2014 Presented by: Pieter van Rooyen

  2. Letaba NWRCS steps Scenario Analysis: Where does it fit in? 2

  3. What needs to be evaluated? • Degree of the ecological health defined by Ecological Categories of biophysical nodes (none-monetary) • Ecosystem Services (none-monetary) • Socio-Economic implications (quantitative: monetary and non-monetary (job count))

  4. How is it rated? • Ecological consequences are rated according to the degree that the Recommended Ecological Category is met. (REC is the top of the scale.) • Ecosystem Services, present state is “1.0” with relative rating for scenarios. • Economic Indicator, in general GDP or other relevant comparative monitory indicator. • Employment, number of jobs as affected by scenario. • Integrated rank, weighted scores of above 4 variables – two methods of ranking.

  5. Why Multi-Criteria Analysis? • Method to compare alternatives where the outcomes (consequences) are not all quantifiable. • Ecological consequences is a relative rating while economy is in monetary terms and employment in numbers. • Multi-Criteria Analysis is appropriate in these circumstances.

  6. Integrated Assessment of Scenarios Elements Variables (Resource Unit) Scenario Assessment

  7. Multi-criteria assessment method For all scenarios For each reach / node For IUA / system Relative importance Weighting process Score Degree of meeting REC Prevailing situation Integrated Comparison (all three variables) Weighting process Score Relative to present provisions Makeup of economy Weighting process Score Relative to base condition

  8. Deriving the Management Class Ecological Categories for a Selected Scenario (IUA 1) Pd Total length Pc Total length Pb Total length Pa/b Total length Management Class Criteria Management Class: I, II or III

  9. Questions for clarification

More Related