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Nutrient Fluxes in River Basins and Their Impact to Surface Waters – A Commemorative Volume Dedicated to Horst Behrendt (1950–2008)

✍ Scribed by Jürgen Hofmann; Norbert Walz


Book ID
102284613
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
17 KB
Volume
96
Category
Article
ISSN
1434-2944

No coin nor oath required. For personal study only.

✦ Synopsis


Despite of the already achieved reduction of nutrient emissions and loads, eutrophication is still a problem of river systems and lakes in Central Europe. Thus the computation of nutrient losses to surface waters and its source apportionment is an important task to fulfil the legal requirements (e.g., Water Framework Directive 2000/60/EC). To calculate nutrient emissions into surface waters, in-stream retention and resulting loads, the nutrient emission model MONERIS (MOdelling Nutrient Emissions into RIver Systems) was created by HORST BEHRENDT in the early 1990's and has been applied to many river basins in the following decades. Moreover, MONERIS provides the modelling framework for the computation of reduction measures aiming to achieve the requirements of reduction targets.

His sudden death was an inconceivable loss to his working group. Soon after, his former PhD student and closest co-worker MARKUS VENOHR took over the scientific lead of the working group and focused the work on documentation and developing the MONERIS model for new scientific challenges.

The papers in this special volume illustrate the complexity of current research on nutrient fluxes on different scales. The six papers at the beginning of the present volume are a selection of presentations given at the 1st MONERIS users conference which was held in Berlin-Adlershof from the 18 to the 20 of November 2009. Sixty participants coming from six countries (Germany, Poland, Switzerland, Austria, The Netherlands, Estonia) attended the meeting in Berlin-Adlershof. The program included 8 review presentations, 25 short communications and 12 posters which covered different topics organized into 6 workshops (I. Data producing, data quality, harmonizing of data Workshop; II. Global change -effects on the water and matter balance; III. Water balance modelling; IV. Modelling of diffuse emissions; V. Water internal processes; VI. Directives and efficiency of costs).

The paper by VENOHR et al. provides a comprehensive overview of MONERIS for modellers and model users. For the first time a detailed and revised description of algorithms used in each pathway of MONERIS is described here. This paper provides an important supplement of the MONERIS handbook published in 2009 (http://moneris.igb-berlin.de).

The modular design of MONERIS allows its application also to river basins in climatic zones being much different from Central Europe. This is illustrated by the contribution of HOFMANN et al. with an application of MONERIS under extreme continental climate in the Kharaa river basin, Mongolia.

Another strength of MONERIS consists in the calculation of the potential of regionally differentiated measures to reduce nutrient emissions and resulting loads. Taking the Oder river catchment -lagoon -coastal water system as a pilot study area, the paper of KRÄMER et al. aims to compare different scenarios for land-use changes in the Oder catchment and their consequences on nutrient emissions, thus regarding nutrient fluxes from land to sea.

The paper by ZESSNER et al. shows the application of MONERIS in alpine environments and derives necessary model adaptations. Thus, the introduction of adaptations to regions