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Vpliv spremembe rabe tal na poplavno nevarnost in oskrbo z vodo
ID Rak, Gašper (Author), ID Škerjanec, Mateja (Author), ID Bračič-Železnik, Branka (Author), ID Kozelj, Daniel (Author)

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Abstract
V članku bo prikazan vpliv spremembe rabe zemljišč zaradi naravnih ali antropogenih dejavnikov na površinski odtok in stanje podzemnih voda, s tem pa na poplavno nevarnost, ter vpliv na znižanje podzemne vode ob vodnjakih in s tem na (ne)varno delovanje vodooskrbnega sistema. Vplivi spreminjanja rabe zemljišč in gozdne zarasti na vodozbirnem območju na poplavno nevarnost ob reki Iški in vodarni Brest ter povezave med površinskimi in podzemnimi vodami ob visokih vodah in v sušnem obdobju, od katerih je odvisno delovanje vodarne, ki oskrbuje Ig in Ljubljano z vodo, so bili analizirani s povezovanjem hidrološkega, hidravličnega in hidrogeološkega modeliranja. Obravnavali smo 27 scenarijev, ki poleg sprememb rabe zemljišč vključujejo tudi različne padavinske dogodke, vplive podnebnih sprememb ter naravnih nevarnosti (žled, lubadar) in človekove posege v gozd (pogozdovanje). Prikazani so spremembe poplavne nevarnosti za poselitev na Iškem vršaju in neugodni vplivi na oskrbo z vodo iz vodarne Brest. Posledice naravnih ali antropogenih sprememb rabe tal je z omilitvenimi ukrepi mogoče vsaj delno omejiti, opozoriti pa velja, da na območjih s pravnim režimom veljajo omejitve, prepovedi in zapovedi, ki vplivajo tudi na sanacijske ukrepe. Zato je treba slediti poti vode in v posameznih procesih ovrednotiti vir in stopnjo nevarnosti pri običajnih razmerah in ob izrednih dogodkih.

Language:Slovenian
Keywords:naravna tveganja, raba prostora, klimatske spremembe, poplavna nevarnost, vodooskrba
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2019
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:Str. 168-178
Numbering:Št. 33
PID:20.500.12556/RUL-114500 This link opens in a new window
UDC:502/504:628.1
ISSN on article:0353-085X
COBISS.SI-ID:8992097 This link opens in a new window
Publication date in RUL:03.03.2020
Views:589
Downloads:250
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Record is a part of a journal

Title:Ujma
Shortened title:Ujma
Publisher:Ministrstvo za obrambo, Uprava Republike Slovenije za zaščito in reševanje
ISSN:0353-085X
COBISS.SI-ID:16348418 This link opens in a new window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:03.03.2020

Secondary language

Language:English
Title:Impact of land use changes on flood risk and water supply
Abstract:
This article describes the impact of land use changes within the Iška River catchment, due to natural or anthropogenic factors, on surface runoff and groundwater status, and consequently on flood risk along the Iška River. Additionally, the impact on the lowering of groundwater level around the water supply facility Brest and its wells, and thus on the functioning of the water supply system, supplying drinking water to Ig and Ljubljana, is presented. The impact of changes in land use and forest overgrowth within the catchment on flood risk and on the connections between surface water and groundwater, which enable the functioning of the water supply facility Brest, were analysed by a combination of hydrological, hydraulic and hydrogeological modelling. Twentyseven scenarios were examined, which, in addition to land use changes, included different precipitation events, climate change scenarios, natural hazards (ice storms, bark beetles), and human interventions (afforestation). The consequences of natural or anthropogenic land use changes can be limited, to some extent, by mitigation measures. However, it should be noted that in the areas protected by the legal regime, restrictions, prohibitions and rules apply that also affect remedial measures. Therefore, the water flow must be followed. For the individual processes, the source and the level of risk under normal and emergency conditions must be evaluated.

Keywords:natural hazards, land use, climate change, flood hazard, watersupply

Projects

Funder:EC - European Commission
Name:Cooperating towards Advanced MAnagement ROutines for land use impacts on the water regime in the Danube river basin
Acronym:CAMARO-D

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