Hydrogeographical analysis of Šmartinsko lake

Šmartinsko jezero je nastalo leta 1970 z zajezitvijo reke Koprivnice in izgradnjo pregrade Loče, da bi zavarovali mesto Celje pred poplavami in oskrbovali celjsko industrijo z vodo. Zaradi procesov terciarizacije so se potrebe po vodi zmanjšale in današnja vloga jezera je poleg zagotavljanja poplavne varnosti predvsem rekreacijske narave. V prvih poglavjih sem jezero geografsko usmeril v prostor s pomočjo fizično geografskih in družbeno geografskih elementov in podrobneje opisal nastanek jezera ter njegove turistične in rekreacijske točke. V zadnjem poglavju sem predstavil rezultate analize jezerske vode, ki se na jezeru izvajajo že več kot 20 let. Ugotovitve niso spodbudne, saj se v jezeru povečujejo količine amonija in nitratov, ki izvirajo predvsem iz okoliških kmetijskih posesti. Nizke so tudi vsebnosti kisika, količine organskega ogljika in fosforja pa se skozi čas niso bistveno spreminjale. Jezero je priljubljeno rekreacijsko območje, zato bodo potrebni koreniti ukrepi, da se kakovost vode izboljša in s tem ohrani »vodni biser« na obrobju Celjske kotline.Lake Šmartinsko was created in 1970 by damming the Koprivnica River and building the Loče Barrier to protect the city of Celje from floods and to supply water to Celje\u27s industry. Due to tertiarisation processes, the demand for water has decreased and the present-day role of the lake is mainly recreational. In the first chapters I have geographically oriented the lake in space by means of physical and socio-geographical elements and described in more detail the formation of the lake and its tourist and recreational points. In the last chapter I presented the results of the lake water analysis that have been carried out on the lake for more than 20 years. The findings are not encouraging, as the amounts of ammonium and nitrates in the lake are increasing, mainly coming from surrounding agricultural properties. The oxygen levels are also low, and the amount of organic carbon and phosphorus have not changed significantly over time. Because the lake is a popular recreational destination, drastic measures will be needed to improve the quality of the water and thus preserve the \u27water pearl\u27 on the edge of the Celje basin