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Title:Primerjava floristične sestave in fenofaze cvetenja za vrste ekstenzivnega in intenzivnega mezotrofnega nižinskega travnika
Authors:ID Avguštin, Polona (Author)
ID Škornik, Sonja (Mentor) More about this mentor... New window
Files:.pdf MAG_Avgustin_Polona_2020.pdf (2,92 MB)
MD5: 8795A26E8984D896FA07E5B341413F68
PID: 20.500.12556/dkum/11e40382-4acd-4e90-83ab-b542d19ac855
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Ekstenzivna travišča so vrstno bogati habitati, ki so v Evropi in drugod po svetu močno ogroženi zaradi intenzivnega upravljanja ali opuščanja kmetijske rabe. V naši raziskavi smo ugotavljali razlike v vrstni sestavi in pestrosti mezotrofnih nižinskih travnikov (Natura 2000 – habitatni tip s kodo 6510), ki jih vzdržujejo z različno kmetijsko rabo. Na izbranih traviščih smo vzorčili 18 vegetacijskih popisov, od tega 12 na ekstenzivnem in 6 na intenzivnem travniku. Skupaj smo popisali 78 rastlinskih vrst in jim določili 10 morfološko-funkcionalnih potez (MFP) ter 18 tipov CSR-strategij. Ugotovili smo, da je vrstna pestrost, izražena v številu vrst na m2, višja na ekstenzivnem travniku (28,8 ± 3,4; N = 12) v primerjavi z intenzivnim (20,2 ± 2,3; N = 6). Travnika se razlikujeta tudi po vrstni sestavi, saj je od 78 vrst 38 oziroma 48,7 % takšnih, ki so se pojavljale le na ekstenzivnem travniku, in 11 vrst oziroma 14,1 % takšnih, ki so se pojavljale le na intenzivnem travniku. Razlike so se pojavljale tudi v MFP, saj so bile na intenzivnem travniku v večjem deležu prisotne enoletnice, terofiti, rastline s šopastjo rastjo, z nižjimi vrednostmi LDMC in višjimi vrednostmi SLA. Na ekstenzivnem travniku so prevladovale trajnice, rastline z listnato ozelenelim steblom, s prevladujočimi skleromofnimi listi, z višjimi vrednostmi LDMC in nižjimi vrednostmi SLA. Hkrati smo ugotovili razlike med ekstenzivnim in intenzivnim travnikom v fenofazah cvetenja. Na intenzivnem travniku je bil na višku vegetacijske sezone večji delež rastlin z belimi in rumenimi barvami cvetov, na ekstenzivnem pa večji delež različnih odtenkov rožnate barve. Na osnovi naše raziskave lahko potrdimo zaključke podobnih študij, da intenzivna raba negativno vpliva na vrstno sestavo in vrstno pestrost (izraženo v številu vrst na m2) trajnih travišč.
Keywords:ekstenzivna travišča, intenzivna travišča, morfološko-funkcionalne poteze, vrstna sestava, fenofaze cvetenja.
Place of publishing:Maribor
Publisher:[P. Avguštin]
Year of publishing:2020
PID:20.500.12556/DKUM-75705 New window
UDC:581.5(043.2)
COBISS.SI-ID:25116936 New window
NUK URN:URN:SI:UM:DK:1TSCAL6R
Publication date in DKUM:18.02.2020
Views:1673
Downloads:281
Metadata:XML DC-XML DC-RDF
Categories:FNM
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:19.01.2020

Secondary language

Language:English
Title:Comparison of floristic compositon and flowering phenology for species of extensive and intensive mesotrophic lowland hay meadows
Abstract:Extensive grasslands are species rich habitats. In Europe and other parts of the world, they are critically endangered due to intensive agriculture or the abandonment of agricultural land. The aim of our research was to determine the differences in the species composition and diversity of mesotrophic lowland hay meadows (Natura 2000 – habitat type code 6510) that are in different agricultural use. We sampled 18 plots on selected grasslands, 12 on an extensive and 6 on an intensive meadow. In total we identified 78 plant species and determined 10 morphological and functional traits and 18 CSR strategy types. We found out that the extensive meadow had a higher plant variety per m2 (28.8 ± 3.4; N = 12) in comparison to the intensive meadow (20.2 ± 2.3; N = 6). The meadows differ in terms of species composition, as 38 species out of 78 (48.7 %) grew only on the extensive meadow, whereas 11 (14.1 %) grew only on the intensive meadow. There were also differences in the morphological and functional traits, as the intensive meadows had a higher proportion of annual plants/therophytes, tussock plants, plants with lower LDMC and with higher SLA. The prevalent plants on the extensive meadow were perennials, plants with leafy stem, scleromorphic leaves, plants with higher LDMC and with lower SLA. We also found differences in the phenological stages of plant flowering between both meadows. At the peak of the vegetation season the intensive meadow had a higher proportion of plants with white and yellow flowers, while the extensive had a higher proportion of plants with flowers of different shades of pink. Based on our research we can confirm the findings of similar studies, which concluded that intensive agriculture has a negative impact on the species composition and on the plant diversity (expressed in number of plants per m2) of permanent grasslands.
Keywords:extensive grasslands, intensive grasslands, morphological functional traits, species composition, phenological stages of flowering.


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