scaling issues in multi-criteria evaluation of combinations of measures for integrated river basin management
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2016
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Abstract
In integrated river basin management, measures for
reaching the environmental objectives can be evaluated at different scales,
and according to multiple criteria of different nature (e.g. ecological,
economic, social). Decision makers, including responsible authorities and
stakeholders, follow different interests regarding criteria and scales. With
a bottom up approach, the multi criteria assessment could produce a
different outcome than with a top down approach. The first assigns more
power to the local community, which is a common principle of IWRM. On the
other hand, the development of an overall catchment strategy could
potentially make use of synergetic effects of the measures, which fulfils
the cost efficiency requirement at the basin scale but compromises local
interests. Within a joint research project for the 5500 km2
Werra river basin in central Germany, measures have been planned to reach
environmental objectives of the European Water Framework directive (WFD)
regarding ecological continuity and nutrient loads. The main criteria for
the evaluation of the measures were costs of implementation, reduction of
nutrients, ecological benefit and social acceptance. The multi-criteria
evaluation of the catchment strategies showed compensation between positive
and negative performance of criteria within the catchment, which in the end
reduced the discriminative power of the different strategies. Furthermore,
benefit criteria are partially computed for the whole basin only. Both
ecological continuity and nutrient load show upstream-downstream effects in
opposite direction. The principles of "polluter pays" and "overall cost
efficiency" can be followed for the reduction of nutrient losses when
financial compensations between upstream and downstream users are made,
similar to concepts of emission trading.
| Reference Key |
dietrich2016proceedingsscaling
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|---|---|
| Authors | ;J. Dietrich |
| Journal | gruppe interaktion organisation zeitschrift fur angewandte organisationspsychologie |
| Year | 2016 |
| DOI |
10.5194/piahs-373-19-2016
|
| URL | |
| Keywords |
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