20.500.12556/DKUM-81059 Prostorsko-Časovne spremembe biomase kopenskih rastlin na območju ledavskega jezera med letoma 1980 in 2018 magistrsko delo Spatio-Temporal changes in aboveground plant biomass in the area of lake ledava between 1980 and 2018 Geografski informacijski sistemi (GIS) so orodja s katerimi uporabnik zajema, shranjuje, obdeluje, analizira in prikazuje prostorske podatke. Digitalna oblika prostorskih podatkov omogoča obdelavo le-teh z različnih zornih kotov številnih znanstvenih panog. Uporaba geografskih informacijskih sistemov je med drugim primerna za proučevanje bodisi naravnih ali antropogenih vplivov na okolje. Ledavsko jezero je umetni rezervoar, ki je nastal v obdobju 1976-1977 z zajezitvijo reke Ledave, ki je po reki Muri drugi največji vodotok v Pomurju. Jezero je bilo zgrajeno predvsem kot zaščita pred poplavami po obsežnih poplavah mesta Murska Sobota leta 1972. Medtem ko je spodnji, južni del vodnega telesa omejen z betonskim jezom, je severni del rezervoarja na izlivu Ledave, popolnoma podvržen naravni prostorski dinamiki. V magistrskem delu obravnavamo spreminjanje nadzemne biomase kopenskih rastlin na območju Ledavskega jezera s pomočjo tehnologije daljinskega zaznavanja. Naslanjamo se na podobe satelita LANDSAT in podatke laserskega skeniranja Agencije RS za okolje ter na podatke habitatnega kartiranja. Rezultati kažejo, da je večina kopenske biomase nastala v prvih desetih letih ob izlivu reke Ledave v umetno jezero. Trend zaraščanja je značilno linearen. Z leti je, s pomočjo uporabe 2D in 3D prostorskih podatkov, zaznavno povečanje nadzemne biomase praktično na celotnem raziskovalnem območju, še posebej pa v habitatnih tipih mlado- in belo-vrbovje. Geographic Information Systems (GIS) are tools for capturing, storing, processing, analyzing and displaying spatial data. A prerequisite for spatial data manipulation is their digital format. The use of GIS is, among others suitable for the study of either anthropogenic or natural effects on the environment. Lake Ledava is an artificial reservoir, created between 1976 and 1977 by damming river Ledava, which is the second largest watercourse in Pomurje, after river Mura... The lake was created mainly as protection against floods after the extensive floods of town Murska Sobota in 1972. While the southern part of the water body is constricted by a concrete dam, the northern part of the reservoir, where river Ledava enters the lake, is completely subject to natural spatial dynamics. We investigated the change in aboveground plant biomass in the area of Ledava Lake by applying remote sensing technology. We utilized LANDSAT satellite imagery , airborne laser scanning data from the Environmental Agency of the Republic of Slovenia and existing habitat maps. The results indicated that most aboveground plant biomass has developed in the first ten years, in the northern part, where river Ledava deposited alluvial sediments. The spatial overgrowing, or vegetation progression, trend was typically linear. However, based on our 2D and 3D spatial data, an increase in aboveground plant biomass has been detected practically in the entire research area, especially in the young and white willow habitat types. Ledavsko jezero LANDSAT daljinsko zaznavanje Lidar Ledava lake LANDSAT Lidar remote sensing true true false [G. Horvat] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-12-19 12:05:45 2022-01-13 11:51:03 2022-04-02 11:39:17 0000-00-00 00:00:00 2021 0 Maribor 0 Maribor VI, 43 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 581.5:582.795(497.4)(043.2) 93178883 MAG_Horvat_Gregor_2021.pdf MAG_Horvat_Gregor_2021.pdf 1 AC042C3E98F411A8AA17C2B557FAC0F2 b53c1214f8afd225ca00545cb8f0d18e3db4457c5f8a6da4aa0d2a5a341a365e 969f58f6-60d4-11ec-8783-00155d000105 20.500.12556/dkum/c32b114a-73ef-4df6-ae51-131d09da0017 https://dk.um.si/Dokument.php?lang=slv&id=155881 Fakulteta za naravoslovje in matematiko 0 0 0