20.500.12556/RUL-166714 Georadarska ocena prostorske razsežnosti koreninskega sistema oljke (Olea europaea L.) Analysis of the ground penetrating radar methods for detecting natural root diversification and spatial dimensions of the olive tree (Olea europaea L. ) root system. V magistrskem delu smo preverjali ustreznost uporabe georadarske metode za določanje razsežnosti koreninskega sistema oljke ob meritvi vode v tleh kot pokazatelja lokacije korenin. Lokacijo korenin smo določali posredno z meritvijo vode v tleh, z neinvazivno geofizikalno-georadarsko metodo (GPR), ob dodatni pomoči 2D upornostne tomografije (ERT) ter nizkofrekvenčne metode CMD-GPR. Posnetke smo primerjali z dejansko lokacijo korenin, ki smo jo pridobili z invazivno metodo, z izkopom. Pozicijo korenin smo preučevali na sedmih globinskih intervalih tal, znotraj kvadrantne mreže velikosti 7 x 7 m. Ob izkopu smo s pomočjo drona fazno dokumentirali teren in oljko ter zajeti oblak točk konstruirali v 3D model znotraj programa CloudCompare. S programskim orodjem CC smo izmerili osnovne parametre drevesa v podzemnem in nadzemnem delu. Namen dela je bil preveriti možnost uporabe geofizikalne metode in nizkofrekvenčne elektromagnetne metode, za posredno določanje razsežnosti koreninskega sistema, s posnetki razporeditve vode v tleh. Meritve so bile izvedene z radarskima antenama dveh frekvenc 400 in 900 MHz, zaradi boljše ločljivosti, so se uporabili le rezultati slednje. Poleg georadarskih metod je bila izvedena še ERT metoda, kot dopolnitev raziskave. Georadarska metoda se je izkazala za premalo natančno za detekcijo morfologije in arhitekture korenin, vendar kot dobro orodje za razumevanje razporeditve talne vode. V nadaljnjih raziskavah bi bilo potrebno prilagoditi jakost antene ter georadarsko metodo izvajati v sušnejših razmerah, da bi se izraziteje pokazale razlike med vodo v tleh in vodo kot posledico prisotnosti živih korenin. In the master thesis, we tested the suitability of using GPR to determine the dimension of the olive tree root system by measuring the water in the soil as an indicator of the root location. The root location was determined indirectly by measuring the water in the soil using a non-invasive geophysical, GPR method, with the additional aid of 2D resistivity tomography (ERT) and the low-frequency CMD-GPR method. The images were compared with the actual location of the roots obtained by the invasive method, excavation. Root position was studied at seven soil depth intervals within a 7 x 7 m quadrant grid. At the time of excavation, we documented the terrain and the olive tree phase by phase using a drone and constructed the captured point cloud into a 3D model within CloudCompare. Using the CC software tool, we measured the basic parameters of the tree in the underground and above-ground parts. The work aimed to verify the applicability of the geophysical method and the low-frequency electromagnetic method for water detection as an indicator of the presence of living roots and to determine the dimension of the root system. The measurements were carried out with two radar antennas of 400 and 900 MHz, only the results of the latter were used for better resolution. In addition to the GPR methods, an ERT method was also carried out to complement the survey. The GPR method proved to be insufficiently accurate for the detection of root morphology and architecture, but a good tool for understanding the distribution of soil water. In further research, the antenna strength should be adjusted and the GPR method should be carried out in drier conditions to show more clearly the differences between soil moisture and moisture as a result of the presence of living roots. koreninski sistem struktura korenin meritve lokacije korenin zaznavanje korenin prostorska razsežnost korenin georadarska metoda voda v tleh root system root structure root location measurements root detection root spatial dimension GPR method soil water true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-01-23 07:15:26 2025-01-23 07:15:37 2025-01-24 04:05:27 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 255977 223644675 45559.pdf 45559.pdf 1 14D68CE9E913E4BBCD498DC5D7031BBE a06ae2bf35a67a8cc868577007b8e6d41988a16ade292dff437092ef3571efe6 ab696a81-d950-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=198530 Biotehniška fakulteta 0 0 0