Geographical Conditions for Blue-green Infrastructure in the Cities of Central Evurope.
Abstract: The article deals with the evaluation of conditions for blue-green urban infrastructure (BGI) in Central Europe based on the situation given by the geographical conditions for the establishment and maintenance of BGI cities in Central Europe, considering other specifics in Central Europe (density, population in the city). An essential condition for the blue-green structure in European cities and for its functioning is the geographical conditions, i.e., the climate zone in which the city is located within the continent. Consequently, as part of adaptation to climate change, it is necessary to support the development of blue-green infrastructure and update the conditions that prevailed and are in the city. In the article, the meteorological conditions, and the terrain morphology of selected cities in Central Europe are examined through a comparative analysis using the indicator of “general quality of city greenery (GQCG)”. These conditions are then compared, considering cities in the countries of central Europe. As part of the creation and support of blue-green infrastructure in cities (which is an important adaptation factor of cities from the perspective of climate change), it is necessary to identify at least the basic conditions and parameters for the development of green and water structures in terms of ongoing climate change. It is about the basic parameters of the environment in terms of water in the city and in terms of temperature and availability of existing green and water areas of the city. The article deals with how these conditions are summarized in the GQCG Indicator and how these parameters are reflected in the city environment. In terms of parameters, these are mainly average annual rainfall, average temperatures, and the availability of greenery and water areas in cities. The article publishes a view of selected cities (Munich, Prague, Krakow, Vienna, Budapest, and Berlin) through these parameters evaluated through the Indicator of General Quality of Green Cities and considers the conditions of population density in cities that are part of other regions. The balance sheet and summary indicate in which cities care is likely to be easier and cheaper (Munich and Krakow) and in which cities are well prepared in advance to adapt to climate change in terms of location, relief, and population (Munich and Berlin). It is a simple analysis of the geographical conditions for the creation and use of BGI in the city.
