Kazalci ekološko-morfološkega stanja vodotokov kot pokazatelji stanja ohranjenosti evropsko pomembnih vrst in habitatnih tipov na območjih Natura 2000 : magistrsko delo

Petkovšek, Matej (author), Toman, Mihael Jožef (mentor)

Ekološko, morfološko, hidrološko in fizikalno-kemijsko stanje vodotokov je pomemben posredni pokazatelj stanja ohranjenosti evropsko pomembnih vrst in habitatnih tipov (Natura vrste in habitati). Metoda, ki omogoca posredno spremljanje in ocenjevanje stanja ohranjenosti Natura vrst in habitatov s spremljanjem stanja vodotokov, je pripravljena tako, da izbrani kazalci vkljucujejo podatke že potekajocih monitoringov vodotokov, kot tudi podatke, pridobljene neposredno na terenu. Izbranih je 28 kazalcev iz treh že uveljavljenih metod. Kazalci so poenostavljeni in prilagojeni specificnim potrebam. Metoda je testirana na vodotokih Mirna in Rinža. Obema vodotokoma sobili doloceni kvalifikacijski odseki. S pomocjo ekoloških zahtev prisotnih Natura vrst in habitatov so bile vsakemu odseku dolocene referencne vrednosti,ki so služile za ocenjevanje kazalcev. Za ocenjevanje je bila uporabljena delno prirejena tristopenjska barvna lestvica, ki se uporablja priporocanju o stanju ohranjenosti Natura vrst in habitatov po 17. clenu Direktive o habitatih. Na vsakem kvalifikacijskem odseku so bili ocenjeni ohranjenost struge in brežin, naravne hidromorfološke in posebne biotske strukture, vpliv vodne infrastrukture in tockovnih obremenitev vodotoka ter obvodni prostor. Vsi podatki so zbrani v za to pripravljeni podatkovni bazi. Primerjava dobljenih rezultatov z rezultati ciljnih raziskav posameznih vrst je pokazala, da je uporabljena metoda, ki je relativno hitra in enostavna, tudi dovolj ucinkovita, da se lahko uporabi za posredno spremljanje stanja ohranjenosti habitatov Natura vrst in habitatnih tipov.

• Language: Slovenian
• Keywords: stanje ohranjenosti, ekološko-morfološki kazalci, monitoring, vodotoki, Natura 2000, Rinža, Mirna
• Work type: Master's thesis
• Typology: 2.09 - Master's Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [M. Petkovšek]
• Year: 2013
• Number of pages: XIII, 111 f., [46] f. pril.
• PID: 20.500.12556/RUL-115337
• UDC: 556.53:502/504(043.3)=163.6
• COBISS.SI-ID: 781431
• Publication date in RUL: 22.04.2020

Secondary language

• Language: English
• Title: Ecologically-morphological markers of watercourse status as indicators of the conservation status of important European species and habitat types of Natura 2000

Abstract

Ecological, morphological, hydrological and physico-chemical status of watercourses are important markers of Natura 2000 species and habitat types conservation levels. The proposed methodology combines the results of ongoing watercourse monitoring and evaluation of the conservation status of species and habitats of Natura 2000 as well as data obtained directly from field analysis. 28 indicators have been selected from three established methods, simplified and further adapted to specific needs. The method has been tested on Mirna and Rinža watercourses and reference sites have been evaluated on each watercourse. The ecological requirements of the Natura species and habitats present on reference segments were used for the assessment of watercourse status. A partly modified three-level color scale has been utilized for watercourse status assessment derived from the conservation status of species and habitat types of Natura 2000 in Article 17 of The Habitat Directive. At each reference segment the conservation of riverbed and riverbank, natural hydro-morphological and specific biological structures havebeen assessed along with the impact of water infrastructure and point source pollution on watercourse and riparian areas. All data are available in a special database. Comparison of the results obtained during the study with the results of targeted research studies of individual species indicates that this quick and easy method is efficient enough to be implemented for indirect monitoring of the conservation status of habitats Natura 2000 species and habitat types.

• Keywords: conservation status, ecological indicators, morphological indicators, monitoring, watercourses