Peripheral regions on the state border are among the most problematic areas of Czechia (the Czech Republic). The special case of the Javorník micro-region which is physically open to and historically anchored within Polish Lower Silesia was chosen as a study area. The question of possible substitution of a peripheral position in the national context by crossborder collaboration was posed, and it is shown that certain potential for this kind of collaboration exists, in the face of already-intensifying cross-border contacts, albeit with relations with Czech 'inland' areas remaining closer than the cross-border tendencies thus far.Keywords periphery • Czech-Polish borderland • rural development • Javorník

Ponds form an important and integral part of our landscape. They naturally integrate the impacts of human activities in their watersheds. Great potential in the retention of nutrients, especially from printed, diffusion and small point sources is naturally hidden in ponds. [Potužák, Duras, 2014] Ponds have several important functions, not only retention one, but even to transform the quality of water, which flows throw the pond, it is mainly the ability of nutrients retention. [Potužák, Duras, 2012]. Nitrates are oppositely considered a unequivocally harmful substance, deteriorating water quality. We are afraid of devaluation of drinking water sources and eutrophication of the seas-wrongly-also eutrophication of our surface waters. During the campaign against nitrates we forgot that in our-mostly eutrophicated-waters, nitrates have a very important function. They are the redox buffer [Duras, 2006].

Sustainable landscape management involve also water reservoir management. The demand of their reconstruction represents a good opportunity for redesigning hydrotechnical structures and their parameters using recent methods and models. The estimation of wind-driven waves on small water reservoirs and their effects on water reservoir structures rarely are applied, although it is an important part of the dam height calculation. The analysis of wave run-up on the upstream face of the dam was performed by means of the Slovak Technical Standard (STN), Coastal Engineering Manual (CEM), Shore Protection Manual (SPM) and model designed by American Society of Agricultural and Biological Engineers (ASABE). The estimations of the wave characteristics differ depending on the model; wave height (H13%) within the range 0.32–0.56 m, wave period 1.32–2.11 s and run-up (R2%) 0.84–1.68 m under conditions of design wind speed 25 m·s−1. Results obtained by CEM, SPM models predict lower values than STN and ASABE models. Since the height difference between the dam crest and still water level in the reservoir is only 0.90 m, we can expect overtopping of the crest by waves after the critical wind speed is exceeded.

Wastewater discharge and treatment is today one of the priorities of strategic planning within the South Moravian Region and the whole of the Czech Republic. Wastewater drainage and its subsequent cleaning are basically resolved with respect to the adoption of EU legislative conditions in the Czech Republic for municipalities with more than 2000 inhabitants. Attention is now being directed to municipalities with fewer inhabitants. Existing wastewater treatment plants are currently focusing mainly on the removal of phosphorus from wastewater. Significant amounts of phosphorus in wastewater and its insufficient removal by treatment plants causes problems with eutrophication of surface waters, especially in tanks [1]. The problem of eutrophication and increased concentrations of pollution in tanks has also multiplied in recent years due to high

When designing public spaces in large cities, a number of functional, communication, compositional, infrastructural, environmental and compositional factors should be taken into account, most of which relate to water elements. The appropriate location and form of water elements significantly affect the attractiveness and strengthening of the identity of places in cities. Fountains, artificial and natural urbanized watercourses, artistic installations and sculptures, as well as nature-based solutions that utilize water designed in public spaces significantly increase the social and aesthetic value of public spaces. The main aim of the presented research is to present a spectrum of solutions for water elements in public spaces of cities. The summary part describes guidelines and recommendations regarding the principles of designing the locations of fountains, watercourses and artistic objects that utilize water in public spaces in cities.

The aim of the work was establishment of research green roofs on Mendel University in Brno. The experimental green roofs were established in August 2015 and it is based on current issues of rainwater management and the quality of storm water launched into recipients or sewage system. There is a valid legislation addressing the management of rainwater in environment -decree no. 268 / 2009, Coll., and decree no. 269 / 2009, Coll. Four experimental plots were created and placed in Mendel University Campus. It was hypothesized that different types of experimental plots will result in different amount of retained water and in different quality of water runoff. Resulting hypotheses proved statistically significant difference between the height of rainfall and runoff height on individual types of green roofs. In addition, it was shown that the different types of roofs prove statistically significant difference in the ability to reduce runoff (retention efficiency).

Abstract. The resulting concentrations of substances manifest considerable instability during the year, which can most likely be attributed to large changes in fl ow rates in diff erent seasons. When comparing the values to older results, it can be concluded that the concentrations of a number of substances have decreased; by contrast, others have increased. An extreme increase in copper was detected, where the concentration exceeded the environmental quality standard several times.

MAŠÍČEK, T., TOMAN, F., VIČANOVÁ, M., HUBAČÍKOVÁ, V.: Evaluation of the infi ltration capacity of soil in a winter wheat stand during the growing season 2010. Acta univ. agric. et silvic. Mendel. Brun., 2011, LIX, No. 6, pp. 225-234