Analiza primernosti in možnosti uporabe metod vrednotenja naravnih dobrin - primer : vrednotenje podtalnice Krškega Polja

Kodre, Neža (author), Fabjančič, Zarjan (mentor), Rakar, Albin (co-mentor)

V magistrskem delu, katerega predmet je analiza primernosti in možnosti uporabe metod vrednotenja naravnih dobrin, je na primeru vrednotenja kvalitete podtalnice Krškega polja uporabljena metoda kontingenčnega vrednotenja. Metoda je bila ocenjena kot najprimernejša za vrednotenje kvalitete podtalnice, saj je dovolj prilagodljiva in hkrati omogoča oceno tako otipljivih kot neotipljivih vrednosti. Rezultat raziskave predstavlja monetarno ovrednotenje izboljšanja kvalitete podtalnice, ocenjeno na osnovi pripravljenosti za plačilo za programe ukrepov za dva scenarija, ki predvidevata različno ambiciozne ukrepe izboljšanja kvalitete podtalnice, ki so ga izrazili prebivalci v okviru anket. Na podlagi uporabe statističnih analiz se je izkazalo, da je pripravljenost za plačilo predvsem dejavnik interesa, lokacije in dohodkov prebivalcev ter zaupanja v programe ukrepov. Ovrednotene koristi kvalitete so bile upoštevane v okvirni analizi stroškov in koristi, na podlagi katere je mogoče utemeljevati znižanje okoljskih ciljev doseganja dobrega stanja voda. V primeru programa ukrepov, katerega cilj je zagotovitev vrednosti koncentracije nitratov v podtalnici pod mejno vrednostjo 50 mg/l, kar je minimalna zahteva za pitno vodo (skladno s Pravilnikom o pitni vodi)), opredelitev izjem okoljskih ciljev, glede na predpostavko, da so stroški nesorazmerno visoki, kadar le-ti vsaj za dvakrat presežejo predvidene koristi, ni utemeljena. Za bolj ambiciozna programa ukrepov, ki predvidevata ukrepe za zmanjšanje nitratov v podtalnici na vrednost 22,5 mg/l in 10 mg/l, je bilo v analizi stroškov in koristi ugotovljeno izrazito nesorazmerje med stroški, ki so potrebni za dosego zastavljenih ciljev in predvidenimi koristmi. V kolikor bi se na podlagi analize stroškov in koristi odločalo o izvedbi takšnih programov ukrepov, se programa v tej obliki najverjetneje ne bi izvedla. IV

• Language: Slovenian
• Keywords: gradbeništvo, magistrska dela, ekonomika okolja, metode vrednotenja, naravne dobrine, upravljanje z vodami, vodna direktiva, metoda kontingenčnega vrednotenja
• Work type: Master's thesis
• Typology: 2.09 - Master's Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Place of publishing: Ljubljana
• Publisher: [N. Kodre]
• Year: 2009
• Number of pages: XVIII, 170 str., pril.
• PID: 20.500.12556/RUL-32543
• UDC: 33:504:556.18(043.3)
• COBISS.SI-ID: 4706145
• Publication date in RUL: 10.07.2015

Secondary language

• Language: English
• Title: Suitability analysis and possible utilization of valuation methods of environmental goods, example of the groundwater quality valuation in Krško Polje : master of science thesis

Abstract

In the master thesis, which discusses the suitability analysis and possible utilization of valuation methods of environmental goods, the contingent valuation method is used on the example of the groundwater quality valuation in Krško polje. This method was valuated as the most suitable for groundwater quality valuation as it is flexible enough and at the same time enables the valuation of both used and non-used values. The result of the research is monetary valuation of improving the quality of groundwater, which is valuated on the basis of “willingness to pay” for the programmes of measures for two scenarios, which provide variously ambitious measures of improving the quality of groundwater, acquired from the survey among the inhabitants. On the basis of statistical analysis it was proven that “willingness to pay” is above all the factor of interest, location and income of inhabitants, and trust in the programmes of measures. The valuated benefits of quality were considered in the framework cost benefit analysis, on the basis of which establishment of less stringent environmental objectives for achieving good water status may be grounded. In the case of programme of measures, which goal is to reach the nitrate concentration value in groundwater below the limit value of 50 mg per l, which is the minimum requirement for drinking water (in accordance to the Rules on Drinking Water), the determination of the exemptions to the environmental objectives, according to the presumption that the costs are disproportionately high when they exceed anticipated benefits twice, is not grounded. Regarding two more ambitious programmes of measures, which provide measures to reduce the concentration of nitrates in groundwater to 22,5 g per ml and 10 g per ml, the distinctive disproportion between costs required to achieve the objective set and anticipated benefits, was found in the cost benefit analysis. If the decision about the performance of such programmes of measures was made on the basis of the cost benefit analysis, these programmes would probably not be performed in this way.

• Keywords: environmental economics, valuation methods, environmental good, water management, water framework directive, contingent valuation method