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May 28, 2012 / landscapeiskingston

Hungarian partner develops applied techno­logical solutions to counter climate change.

Climate change is producing extreme weather conditions creating new factors which have to be dealt with throughout Europe. One of the resulting side effects is the increased level of erosion. In case of the Loess-wall in Du­naújváros this means that strong and fast inter­ventions have to be made to prevent possible catastrophe. This is an example of good practice developed by Waterways Forward project partner, Municipality of Dunaújváros – how applied techno­logical solutions can be used to counter the  negative effects of climate change.  To read the full report – click here Stabilise the Loess Wall 

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Along the left side of the Dan­ube in Hungary, a 10m high line of loess wall can be found that is more than 100km long. All along this length, parts of the wall regularly erode away caus­ing serious damage in the sur­roundings; a process that inten­sifies in rainy weather. 

Leoss is a very small gran­ulated un-stratified deposit that is found in the steep banks; when affected by humid­ity or pressure it is susceptible to slipping. The fluctuation of the groundwater level can also contribute to this type of erosion. Due to the extreme weather of the few last years, which have included strong rainfalls, much slipping has occurred which has resulted in serious damage being caused. 

The loess wall nearby Du­naújváros has already col­lapsed several times during the past few years. A complex bank-protecting sys­tem has already been developed along several parts of the wall. Further movements will cause an almost irreversible damage in this national monument area and in the surrounding public waterworks.

 Results from this good practice include restoration/protection of:

  • Roman Stone storage monument  
  • Block houses
  • Pedestrian promenades, parks, statues, sports-grounds
  • Bank-protecting workshops
  • Public roads with local importance
  • Local water supplier system, gas-net­work, waste- water canalization system 

Surface and underground drain­age system independent from the communal sewer prevent the crumbling of the embankment around 260 kilometers long. Bi­ological protection is provided by plants cultivated on the loess slope. The flora of the area is of a value similar to an arboretum.

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