Analiza ekstremnih gladin podzemne vode na Mengeško Domžalskem polju

Martinjak, Barbara (author), Brenčič, Mihael (mentor)

Diplomsko delo temelji na analizi hidroloških postaj na Mengeško-Domžalskem polju, v kateri sem obravnavala ekstremne gladine podzemne vode. Osredotočila sem se na hidrološke postaje, ki ležijo na območju Kamniškobistriške ravnine. Obravnavala sem naslednje hidrološke postaje: Loka (1471), Mengeš 3 (Mp-0275), Mengeš 4 (0420), Podgorica (1992), Podgorje (0100), Preserje (0430), Študa (1752) in Zgornje Jarše 2 (D-0582). Podatke sem črpala s spletne strani Agencije Republike Slovenije za okolje. Za vsako hidrološko postajo je prikazan diagram, ločeno za minimalne in maksimalne vrednosti gladine podzemne vode. Za vsako od postaj in vsakega od nizov podatkov je bil izračunan linearni trend za obdobje od leta 1981 do leta 2013. Iz analiziranih diagramov sem ugotovila, da na skoraj vseh postajah gladine podzemne vode s časom upadajo, razen na postajah Loka (1471) in Preserje (0430), kjer nastopa trend naraščanja minimalnih mesečnih gladin podzemne vode. Trend upadanja podzemne vode na Mengeško-Domžalskem polju se kaže na celotnem analiziranem območju. V osrednjem delu polja je znižanje večje, saj je v okolici veliko črpališč, območje je bolj poseljeno in s tem je tudi infiltracija v vodonosnike manjša. V južnem delu je znižanje gladine podzemne vode najbolj izrazito, gladina podzemne vode je upadla kar za 2 metra, na to pa domnevno vpliva poglobitev struge reke Save, v katero se izteka podzemna voda iz območja Mengeško-Domžalskega polja.

• Language: Slovenian
• Keywords: Nihanje gladine podzemne vode, minimalne gladine podzemne vode, maksimalne gladine podzemne vode, trendi nihanja gladin podzemne vode, hidrološke postaje podzemne vode, Mengeško-Domžalsko polje
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2017
• PID: 20.500.12556/RUL-96421
• COBISS.SI-ID: 1357662
• Publication date in RUL: 02.10.2017

Secondary language

• Language: English
• Title: Extreme groundwater levels in the area of Mengeško Domžalsko polje

Abstract

My diploma thesis is based on an analysis of hydrological stations in the Mengeš-Domžale Plain, in which I look at information about extreme levels of groundwater. I focused on the hydrological stations located in the flat area along the Kamniška Bistrica stream. The following hydrological stations were observed: Loka (1471), Mengeš 3 (Mp-0275), Mengeš 4 (0420), Podgorica (1992), Podgorje (0100), Preserje (0430), Študa (1752) and Zgornje Jarše 2 (D-0582). The data were obtained from the website of the Slovenian Environ-ment Agency. The minimum and maximum groundwater levels are presented in separate diagrams for each hydrological station. For each of the analyzed hydrological stations and for each data set, the linear trend for the period be-tween 1981 and 2013 was calculated. Based on the analyzed diagrams, I es-tablished a decreasing trend of groundwater levels at almost all stations, ex-cept for Loka (1471) and Preserje (0430) where there was an increasing trend for minimum groundwater level. The trend of decreasing groundwater levels in the Mengeš-Domžale Plain is generally observed throughout the analyzed area. In the central part of the Mengeš-Domžale Plain, the decrease was rela-tively high owing to the fact that the area has many pumping stations and is the most populated one, which consequentially means less infiltration in aquifers. The southern part of the analyzed area saw the biggest decrease in groundwater level: by as much as 2 meters. Ostensibly, the reason is the deepening of the riverbed of the Sava, into which groundwater from the Mengeš-Domžale Plain flows.

• Keywords: Groundwater level fluctuation, minimum groundwater level, maximum groundwater level, groundwater level trends, groundwater hydrological stations, Mengeš-Domžale Plain