2nd International ConferenceGraz, October 10th, 2012

Web based catchment characteristics (info tool) – Digital Waterbook (DWB)

Since the free web tool of the DWB, qualified water management information is generally accessible. Therefore, information such as water rights, surface waters, groundwater, drinking water protection areas and flood zones are online available. This transparency in water management is the basis for the sustainable water resources management.

Sustainable precipitation management concepts to save water quality/quantity

In urbanised areas, the natural water balance is disturbed by a high percentage of impervious surfaces. Appropriate measures (green roof, storm water infiltration and rainwater harvesting) and their combination can help restore the natural water balance quite closely. So it is possible to properly use the retention and cleaning capacities of the soil and to reduce runoff peaks.

Assessment of water balance models – Project KliWES

www.umwelt.sachsen.de/kliwes

The project assess the impact of the climate changes on the water balances in Saxony. To calculate scientifically founded and reliable water balance data KliWES uses combined and complex methods. A risk map e.g. will identify areas in greatest need of adjustment strategies for water management, agriculture and forestry.

Exchanged ExperiencesPP 8: Saxon State Office for Environment, Agriculture and Geology

Fig. 2 Groundwater Recharge calculated by KliWES

Good Practice

LfULG - Key Competencies Under One Roof

www.smul.sachsen.de/lfulg

“Network to shape the future – this is the motto of the Saxon State Office for Environment, Agriculture and Geology (LfULG) in tackling the increasingly complex issues of agricultural and environmental policies for both businesses and citizens.”

Norbert Eichkorn, President of the LfULG

Groundwater Recharge mm/a

The end of the project SHARP is not the end of cooperationBased on the joint collaboration in SHARP especially on the topics of transboundary issues, water balance and ground-

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www.wasserbuch.sachsen.de

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Adaptation

Inflow of mine water

Contact and aeration tankAdding of lime milk

Contaminated mining water

other Adaptation Topics by the LfULG

• Geothermal Use of Groundwater• Application of Water Balance Models

with Respect to Climate Change

Effects on Groundwater by Mining

The Scottish, Polish and Greek partners have also a mining industry. They are interested on methods for rehabilitation of mining areas and to clean the contaminated mining water. Therefore, at study visits mine water treatment plants, active mining and lakes after rehabilitation of mining area were visited. In addition the results of the project VODAMIN, which was initiated by the LfULG, are also included in SHARP. So there is possibility to exchange experiences of current methods to clean mining waters.

Exchange of Experiences to further Adaptation Topics

Transboundary Issues, Groundwater models development and verification, Sustainable Drainage Systems (SuDS),…

Fig. 1: Activities of the Department 4 in the LfULG www. smul.sachsen.de/lfulg

Fig. 3: Urban/Natural Water Balance (Germany), after Mönninghoff 1993, modified

Fig. 4: Scheme of operating in a mine water treatment plant/ Pict. Mining area Schleenhain (Germany)

water modeling a new project idea was developed. Together with the Polish partners the water balance of the catchment area of the Lusatian Neisse will be calculated in the project NEYMO (www.umwelt.sachsen.de/neymo). The project results will help to ensure a coordinated and sustainable water management in the transboundary catchment area.

<=100

>100 – 175

>175 – 250

>250 – 325

>325 – 400

>400

RecyclingSoil, contaminated landsResidential water managementSurface and groundwaterFlood control centre, hydrologyMining impacts

Water, Soil, Recyclables

Urban Water Balance Natural Water Balance

Evaporation and Retention

Runoff

Percolation

5 %20 % 17 %

50 %

33 %

Department 4Dresden-Klotzsche