WATER ELEMENTS OF CULTURAL HERITAGE AND HISTORICAL SITES IN THE RELATIONSHIP TO THE LANDSCAPE STATE AND CLIMATE CHANGES

Water elements represent a significant part of the environment of cultural heritage sites, conservation zones and areas. To fulfil the required functions, which may include social, historical, recreational and educational, but also environmental functions; it is necessary to ensure their corresponding target state. This state includes structural-technical state and qualitative state. The article presents a methodical approach for describing both of the states and an evaluation of a threat of the negative changes. It also presents results of the Czech UNESCO Heritage sites water elements field survey of the structural-technical state, water management, connection to a surrounding landscape type (including land-use, pollution sources) and measurement of the quality of the aquatic environment.