20.500.12556/RUL-189524 Assessing the role of rainfall and antecedent soil moisture conditions on soil moisture increase Analiza vloge padavin in predhodne namočenosti zemljine na naraščanje vlažnosti tal Soil moisture plays an important role in regulating natural processes, including water movement in the hydrological cycle. One of the main factors affecting soil moisture wetting and drying patterns is precipitation, but the response of soil moisture depends not only on its characteristics but also on other indicators such as soil depth, soil water-retention properties, land cover, and land use. These indicators determine the dynamics of the increase in soil moisture, which does not usually follow the dynamics of measured precipitation. In order to evaluate the rate of soil moisture response to rainfall input, as well as the influence of rainfall indicators and previous soil moisture conditions on the increase, we applied a decision tree model and a random forest model. Data collected during two years of measurements at three different depths in a grassy area of a small park in Ljubljana were considered. The increase in soil moisture at depths of 16 cm and 51 cm is mainly determined by the maximum 20-minute intensity recorded in the period of 6 hours before the increase. In deeper layers (74 cm), however, the response is determined by the previous moisture conditions at least 24 hours earlier or by precipitation in the previous 7 days. Vlažnost tal ima pomembno vlogo pri uravnavanju naravnih procesov, vključno z gibanjem vode v hidrološkem krogu. Eden od glavnih dejavnikov, ki vplivajo na vsebnost vode v tleh, so padavine, odziv vlage v tleh pa je poleg lastnosti padavin odvisen še od drugih kazalnikov, kot so globina, vodozadrževalne lastnosti tal, tip dal, pokrovnost in raba tal. Ti kazalniki določajo, s kakšno dinamiko bo prišlo do dviga vsebnosti vode v tleh, ki običajno ne sledi dinamiki merjenih padavin. Z namenom ocene hitrosti odziva vlažnosti tal na padavine ter analizo vpliva kazalnikov padavin in predhodne namočenosti tal na povečanje vsebnosti vode v tleh smo uporabili model odločitvenih dreves in model naključnega gozda. Upoštevali smo podatke, zbrane v dveh letih meritev na treh različnih globinah na travnati površini majhnega parka v Ljubljani. Naraščanje vsebnosti vode v tleh na globinah 16 cm in 51 cm je pogojeno predvsem z maksimalno 20-minutno intenziteto, zabeleženo v obdobju 6 ur pred pričetkom naraščanja vrednosti. V globljih plasteh (74 cm) pa je odziv pogojen s stanjem predhodne vlažnosti vsaj 24 ur prej oziroma s padavinami v preteklih 7 dneh. soil moisture precipitation antecedent conditions decision trees random forests vsebnost vode v tleh padavine predhodne razmere odločitvena drevesa naključni gozd true false true Angleški jezik Slovenski jezik Članek v reviji 2026-10-08 12:05:23 2026-10-08 12:05:28 2026-10-10 03:52:17 0000-00-00 00:00:00 2026 0 0 Str. 1-13 no. 70 Vol. 39 jun. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.85:556.12(497.451.1) 0352-3551 10.15292/acta.hydro.2026.01 294219011 Vialette,_Zabret-Assessing_the_role_of_rainfall_and_antecedent_soil_moisture_conditions_on_soil_moisture_increase.pdf Vialette,_Zabret-Assessing_the_role_of_rainfall_and_antecedent_soil_moisture_conditions_on_soil_moisture_increase.pdf 1 962E4012BCEDCDB82CB5FB1B7E9A1DED 681db17f52de91aaf1164e9342182a42db2cd060f6205e21334dd319c64983ff ec40d82a-c2ff-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250148 https://actahydrotechnica.fgg.uni-lj.si/si/paper/a39ev 1 a4701a85-c2ff-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=250147 Fakulteta za gradbeništvo in geodezijo 0 0 0