20.500.12556/RUL-170666 Analiza skladnosti določanja barve tal z vizualno oceno in digitalno analizo Analysis of the consistency in soil color determination using visual assessment and digital analysis V diplomskem delu smo preučevali ponovljivost in skladnost določanja barve gozdnih tal z dvema metodama: vizualno oceno z Munsellovimi barvnimi kartami in digitalno metodo s spektrokolorimetrom Munsell Capsure. V raziskavo smo vključili 28 vzorcev tal, pri čemer smo trem vzorcem tal barvo ocenjevali dvakrat. Vizualne ocene je izvedlo pet določevalcev, digitalno meritev pa smo za vsak vzorec ponovili petkrat. Vse ocene in meritve so potekale v laboratoriju pod enakimi svetlobnimi pogoji, kar je zagotovilo primerljive pogoje med metodama. Ugotovili smo odstopanja med določevalci, saj je bila povprečna ponovljivost ocen nizka (κF = 0,240), kar kaže na subjektivnost okularne metode. Digitalna metoda je dosegla bistveno višjo ponovljivost (κF = 0,765), kar potrjuje njeno zanesljivost. Vizualne ocene so se z digitalno določenimi barvnimi kodami ujemale le v 20,7 % primerov. Povprečna stopnja skladnosti med ocenami določevalcev, ki se ukvarjajo z analizami tal, in spektrokolorimetrom Capsure ocenjenimi vrednostmi je bila κF = 0,173, kar pomeni zelo nizko skladnost. Referenčna barva, izračunana na podlagi modelne vrednosti spektrokolorimetra Capsure, se je z ocenami nekaterih določevalcev ujemala bolj kot z ocenami drugih. In this thesis, we investigated the repeatability and consistency of soil colour determination using two methods: visual assessment with Munsell colour charts and a digital method using the Munsell Capsure spectrocolorimeter. We included 28 soil samples in the study and assessed the colour of three samples twice to check consistency. The visual assessments were performed by five evaluators, while the digital measurements were repeated five times for each sample. All assessments and measurements were performed in a laboratory under the same lighting conditions to ensure comparability between the two methods. We observed differences between the evaluators as the average repeatability of the visual assessments was low (κF = 0.240), indicating the subjective nature of the visual method. The digital method showed a significantly higher repeatability (κF = 0.765), confirming its reliability. The visual assessments matched the digitally determined colour codes in only 20.7% of cases. The average degree of agreement between the evaluators' assessments and the values measured with the Capsure spectrocolorimeter was very low (κF = 0.173). The reference colour, which was calculated as a modal value from the Capsure measurements, agreed better with the assessments of some evaluators than with others. gozdna tla barva tal Munsell Capsure spektrokolorimeter vizualna ocena forest soil soil colour Munsell Capsure spectrocolorimeter visual assessments true false false [D. Vodičar] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-07-12 07:15:37 2025-07-12 07:15:43 2025-07-14 11:43:56 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*114(043.2)=163.6 257794 242434307 49415.pdf 49415.pdf 1 7F35892AD90AAFC67C392E97442A2DE7 58d23d1bf708ca1fdf2b0b8a9233efe7b394961fb98b67a2b2e94aefdd87ef7c 55cdb933-5edd-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=212710 Biotehniška fakulteta 0 0 0