UVODZakon o kmetijskih zemljiščih (2011) (ZKZ) ureja varstvo KZ in njihovo upravljanje, tako da določa njihovo razvrstitev, rabo in obdelovanje, njihov promet in zakup, agrarne operacije in skupne pašnike (1. člen). Cilji ZKZ so: (a) ohranjanje in izboljševanje pridelovalnega potenciala ter povečevanje obsega KZ za pridelavo hrane, (b) trajnostno ravnanje z rodovitno zemljo in (c) ohranjanje krajine ter ohranjanje in razvoj podeželja (1. a člen). KZ, določena z ZKZ, so zemljišča, ki so primerna za kmetijsko pridelavo (1. odstavek 2. člena). S prostorskimi akti lokalnih
Groundwater pollution with pesticides is a problem that occurs all over the world as well as in Slovenia. Considering the past high loads of groundwater with pesticides, the purpose of the presented research was to determine the presence of pesticides in the groundwater of Krško-Brežiško polje in the period 2018-2019 and to check the applicability of the passive sampling method. A total of 21 groundwater samples were taken at 11 locations and 2 samples each in the Sava and Krka rivers. We identified 15 pesticides and their degradation products. Atrazine and its degradation product desethylatrazine were most frequently determined in groundwater samples. They are followed by desethylterbutylazine, terbutylazine, metolachlor and simazine. Atrazine, desethylatrazine, chlortoluron, metolachlor and terbuthylazine were detected in surface water. A total of 24 samples were taken in groundwater and surface water using the qualitative passive sampling method. We singled out 8 pesticides that appear in two campaigns. The frequency and occurrence of individual pesticides by both methods are comparable. Passive sampling has proven to be an appropriate method of identifying the presence of pesticides. The highest loads in the Krško-Brežiško field arise from the agricultural land areas. Groundwater is more contaminated with pesticides in the central part of the field in the direction of groundwater flow from west to east. In the groundwater of the Krško-Brežice field, atrazine and desethylatrazine are still the most frequently detected pesticides with higher concentrations, despite a 20 years long ban on the use of atrazine-based plant protection products.
Izvle~eklanek obravnava možnost zajema podzemne vode na obmo~ju Krimskega pogorja s podzemnim drenažnim rovom, ki bi pomenil dopolnilni vodni vir za vodooskrbo mesta Ljubljana. V okviru raziskave je potekalo podrobno geolo{ko kartiranje obmo~ja ter hidrogeolo{ke, geofizikalne ter inženirsko geolo{ke raziskave. Izdelana je bila vodna bilanca napajalnega obmo~ja, katere rezultati kažejo, da se na obravnavanem obmo~ju nahajajo precej{nje koli~ine podzemne vode, ki bi jo bilo možno zajeti s podzemnim drenažnim rovom. Predlagana je bila trasa podzemnega vodnega rova, katerega vhodni del bi bil lociran na južnem obrobju Ljubljanskega barja južno od vasi Strahomer. Rov bi potekal v jugozahodni smeri v zgornje triasnem dolomitu. Zaradi majhnih ekolo{kih obremenitev na obmo~ju napajanja rova ter dobrih ~istilnih lastnosti dolomita predvidevamo, da bi bilo možno z drenažnim rovom zajeti zelo kvalitetno pitno vodo. AbstractThe article deals with the possibility of groundwater capture by means of a groundwater drainage tunnel in the area of Krim mountain range for a supplementary water supply of the city of Ljubljana. Within the scope of the investigation, a detailed geological mapping of the area was carried out, and hydrogeological, geophysical and engineering-geological research was performed. A water balance of the recharge area was calculated, indicating considerable quantities of groundwater which could be captured with an underground drainage tunnel. A course of the tunnel was suggested, with its entrance part located on the southern fringes of Ljubljansko barje south of the village Strahomer. The tunnel would run in the south-west direction in the Upper Triassic dolomite. Because of low environmental burden in the recharge area of the tunnel and due to good cleaning properties of dolomite it is expected that drinking water of very good quality could be captured by means of the drainage tunnel. UvodMestna ob~ina Ljubljana se s pitno vodo v pretežni meri oskrbuje iz medzrnskega vodonosnika Ljubljanskega polja in delno iz južnega dela vodonosnika Ljubljanskega barja. Oba vodonosnika sta zaradi intenzivne urbanizacije ter poljedelske rabe prostora izpostavljena zelo mo~nim ekolo{kim obremenitvam, ki poslab{ujejo kvaliteto podzemne vode. Lahko pri~akujemo, da se bodo pritiski na ta prostor v prihodnosti {e stopnjevali, saj gre za obmo~je glavnega mesta Slovenije, ki ima zaradi svoje funkcije tudi specifi~ne prostorske potrebe.Zaradi navedenih dejstev so se v preteklosti pri~ele pojavljati pobude za razvoj dopolnilnih vodnih virov za Mestno ob~ino Ljubljana, ki bi po eni strani zagotavljali ve~jo varnost in zanesljivost vodooskrbe tudi v primeru ve~jih ekolo{kih nesre~, dopolnilni vodni viri pa naj bi zagotavljali tudi dovolj kvalitetno pitno vodo, da ne bo potrebe po dragih in nepriljubljenih postopkih za ~i{~enje in pripravo pitne vode. V ta namen je bila v letu 2006 izdelana {tudija Potencialni novi viri pitne vode za Mestno ob~ino Ljubljana (HIDROIN-ŽENIRING, 2006). Med obravnavanimi možnostmi za pridobitev novih koli...
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