20.500.12556/RUL-95740 Uporaba lidarskih podatkov za oceno poškodovanosti dreves - primer vrednotenja žledoloma Use of lidar data to estimate the tree damage - case study of ice-break Na območju GGE Snežnik smo ocenjevali poškodovanost krošenj po žledolomu iz leta 2014. Območje je bilo posneto z laserskim skeniranjem površja novembra 2013 in aprila 2014. Lidarske podatke smo obdelali v programu ArcMap in CloudCompare. V raziskavo smo vključili 111 dreves, od tega 65 navadnih jelk (Abies alba Mill.) in 46 navadnih bukev (Fagus sylvatica L.). S programom CloudCompare smo izračunali razdalje med točkami, ki so si bile najbližje med oblakoma točk iz leta 2013 in 2014. Tako smo dobili razdalje poškodovanosti, s katerimi smo prišli do naslednjih ugotovitev: bukve so bile statistično značilno bolj poškodovane od jelk (p < 0,05). Preverili in statistično potrdili smo povezavo med višino drevesa in poškodbami krošnje (p < 0,05) ter dolžino krošnje in poškodbami krošnje (p < 0,05). Vpliva sestojnega sklepa na poškodovanost krošenj po žledu nismo uspeli statistično značilno potrditi (p > 0,05). In the area of forest management unit Snežnik, we estimated crown damage after ice-break from 2014. The area was recorded with LIDAR technology in November 2013 and April 2014. Lidar data was processed in ArcMap and CloudCompare. The study included 111 trees, of which 65 were silver fir (Abies alba Mill.) and 46 common beech (Fagus sylvatica L.). Using CloudCompare, we calculated the distances between the points that were closest from 2013 and 2014 lidar data. This gave us the distances of damage that led to the following findings: the beech was statistically significantly more damaged than fir (p < 0,05). We discovered the connection between the height of the tree and the crown damage (p < 0,05), the length of the crown and the crown damage (p < 0,05). We have not been able to statistically determine the effect the forest density has on crown damage because of ice-break (p > 0,05). LIDAR žled drevesna krošnja Abies alba Mill. Fagus sylvatica L. LIDAR ice-break crown damage Abies alba Mill. Fagus sylvatica L. true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-09-21 07:58:37 2017-09-21 07:58:37 2022-08-10 06:49:10 0000-00-00 00:00:00 2017 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 144714 4874150 1111.pdf 1111.pdf 1 A0EBC8ADE2EE604C158629D0BD9D642C 89b6d9af50d80d6b00b8ec80a4a9688bab415781eefdd6c9c8f33c9fd445a68a d5952683-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/16c28c60-9814-450a-92c0-451169cfe3ca https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=104373 Biotehniška fakulteta 0 0 0