RESTORATION OF WETLAND CICKY IN SLOVAKIA

Wetlands occupy only a small area on most watershed landscape but their hydrologic role in terms of storage as well as their influence on sediment and water quality is often essential. It can be crucial to the hydrologic functioning of the watershed. Wetlands are areas inundated or saturated by surface or ground water at a frequency and duration sufficient to support a prevalence of vegetation typically adapted to saturated soil condition. Locally important wetland - Cicky is situated near the Kosice city in the eastern part of Slovakia. Geological structure of the surrounding area of wetland is not very complicated and predetermined its morphological character, which reflected in the current form of the relief. This area was deforested by humans many years ago which affected hydrological regime of Cicky stream nearby Cicky wetlands. Suitable design of methods of wetland restoration/revitalization is therefore very important for this stressed area. To maintain ecological stability of a given zone wetland Cicky, also the alternatives as removal of invasive plants or purifying the Cicky stream were considered, but it is not presented in this paper. Some of technical measurements of restoration are the core of this manuscript. The first technical solution is Cicky stream regulation in the area. The next is the design of the weir and the design of the dike. The dike is designed in two variants; green one with the respect of capture of required amount of water. Red variant is following the same aim, but using enlargement the area of the existing wetland. The paper points the attention to the existing wetland as ecosystem in degraded habitats. The result is a project for the restoration using technical measurements in two alternatives with respect to preservation of ecological stability. Both technical solutions are described in paper in detail.