Author/Editor		Šraj-Kržič, Nina; Gaberščik, Alenka
Title		The environment assessment and macrophytes of intermittent watercourses of SW Slovenia
Type		članek
Source		In: Proceedings of the international conference All about karst and water: decision making in a sensitive environment; 2006 Oct 9-11; Vienna. Vienna: ,
Publication year		2006
Volume		str. 112-7
Language		eng
Abstract		The alternation of floods and dry periods in karstic watercourses influences the environmental characteristics and the organisms. The intermittent watercourses of SW Slovenia were survey ed for macrophytes and the quality of aquatic environment. We assessed the distribution and abundance of macrophytes. as well as 11 environmental parameters describing the land use beyond the riparian zone, the structure of riparian zone and stream channel morphology. Generally the intermittent watercourses exhibited a relatively high level of naturalness, because the variable water regime prevents intensive anthropogenic activity: i.e. agriculture. industrv. settlements, and infrastructure. Altogether 55 taxa of macrophytes were identified in 67 km of length examined. The share of different ecological groups of macrophytes. i.e. submerged. emerged and amphibious plant species reflected the water regims of watercourses. Of these, amphibious macrophytes dominated as a consequence of intermittent water regime. Of all taxa identified. 21 macrophyte taxa are included in the Red list of plants of Slovenia.
Descriptors		FRESH WATER WATER POLLUTANTS PLANTS ECOSYSTEM SLOVENIA