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Title:Razporeditev vodnih makrofitov v dveh vodotokih kraške reke Ljubljanice, Obrh in Rak
Authors:ID Kravanja, Marija (Author)
ID Germ, Mateja (Author)
Files:URL URL - Source URL, visit https://ojs.sazu.si/folia_bio_geo/article/view/8063
 
.pdf PDF - Presentation file, download (16,62 MB)
MD5: 3593AC032E7B58BA39457414979DF53B
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Rivers are spatially and temporally heterogeneous systems that are susceptible to changes due to anthropogenic influences. These can significantly alter water quality and river communities, including macrophytes, which are involved in nutrient cycling, energy flow and sedimentation processes, and provide habitats for other organisms. The presence, abundance, and distribution of macrophytes can thus serve as indicators of the state of aquatic ecosystems. Rivers that flow (partially) underground are particularly susceptible to (human) impacts from the hinterland due to their lower self-purification capacity. Using a modified RCE (a Riparian, Channel, and Environmental Inventory) method, we classified the Rak River as first or second RCE quality class, and the Obrh River as second or third RCE quality class. According to the River Macrophyte Index (RMI), the ecological status of both rivers was moderate, good or very good, except for the first section of the Obrh, the status of which was assessed as poor. The ecomorphological preservation of both rivers and suitable conditions for macrophyte growth contribute to the high species diversity observed in both rivers: a total of 36 taxa were recorded in the Obrh and 38 in the Rak. In the latter, the presence of Myriophyllum verticillatum L. was recorded for the first time at the time of our sampling. Almost one third of the species in each of the rivers are listed on the Slovenian Red list of threatened pteridophytes and seed plants, supporting the evidence of their high naturalness and emphasizing the importance of appropriate management of karst watercourses.
Keywords:karst, macrophytes, RCE method
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2024
Year of publishing:2024
Number of pages:str. 207-242
Numbering:Vol. 65, iss. 2
PID:20.500.12556/DiRROS-20245 New window
UDC:582:556.53:551.435.88
ISSN on article:2335-2914
DOI:10.3986/fbg0111 New window
COBISS.SI-ID:205798915 New window
Note:Nasl. z nasl. zaslona; Opis vira z dne 29. 8. 2024;
Publication date in DiRROS:29.08.2024
Views:420
Downloads:282
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KRAVANJA, Marija and GERM, Mateja, 2024, Razporeditev vodnih makrofitov v dveh vodotokih kraške reke Ljubljanice, Obrh in Rak. Folia biologica et geologica [online]. 2024. Vol. 65, no. 2, p. 207–242. [Accessed 30 March 2025]. DOI 10.3986/fbg0111. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=20245
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Record is a part of a journal

Title:Folia biologica et geologica
Publisher:Slovenska akademija znanosti in umetnosti
ISSN:2335-2914
COBISS.SI-ID:35019053 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0212-2017
Name:Biologija rastlin
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:MR
Name:Mladi raziskovalec
Acronym:MR
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P4-0107-2020
Name:Gozdna biologija, ekologija in tehnologija
Funder:EC - European Commission
Project number:211372
Name:Life Watch
Acronym:LIFEWATCH
Funder:EC - European Commission
Project number:654359
Name:European Long-Term Ecosystem and socio-ecological Research Infrastructure
Acronym:eLTER

Licences

License:CC BY 3.0, Creative Commons Attribution 3.0 Unported
Link:https://creativecommons.org/licenses/by/3.0/deed.en
Description:You are free to reproduce and redistribute the material in any medium or format. You are free to remix, transform, and build upon the material for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Secondary language

Language:Slovenian
Title:Distribution of macrophytes in two tributaries of the karstic River Ljubljanica, Obrh and Rak
Abstract:Reke so prostorsko in časovno heterogeni sistemi, občutljivi na spremembe zaradi antropogenih vplivov. Ti lahko odločilno spremenijo kakovost vodnega ekosistema ter rečne združbe, vključno z makrofiti, ki sodelujejo v kroženju hranil, pretoku energije in procesih sedimentacije ter nudijo življenjski prostor drugim organizmom. Prisotnost, abundanca in razporeditev makrofitov lahko zato služijo kot indikatorji stanja vodnih ekosistemov. Reke, ki (deloma) tečejo pod zemljo, so zaradi manjše samočistilne sposobnosti še posebej občutljive na (človekove) vplive iz zaledja. S pomočjo prirejene metode RCE (angl. A Riparian, Channel, and Environmental Inventory) smo reko Rak uvrstili v prvi oz. drugi RCE kakovostni razred, reko Obrh pa v drugi oz. tretji RCE kakovostni razred. Na podlagi RMI indeksa (angl. River Macrophyte Index) smo reki Rak in Obrh uvrstili v zmerno, dobro oz. zelo dobro ekološko stanje, z izjemo prvega odseka Obrha, ki smo ga uvrstili v slabo ekološko stanje. Ekomorfološka ohranjenost obeh rek ter ugodne razmere za rast makrofitov omogočajo njihovo visoko vrstno pestrost: v Obrhu smo zabeležili 36 taksonov, v Raku pa 38, pri čemer smo v slednji prvič zabeležili prisotnost vrste Myriophyllum verticillatum L. Skoraj tretjina vrst, prisotnih v vsaki izmed rek, je uvrščenih na Rdeči seznam ogroženih praprotnic in semenk, kar dokazuje visoko stopnjo njune ohranjenosti ter poudarja pomen ustreznega upravljanja kraških vodotokov.
Keywords:kras, makrofiti, Obrh, Rak, RCE metoda, Ljubljanica s. lat.


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