Izvleček. Ustava RS določa pridobivanja in uživanja lastnine tako, da je zagotovljena njena gospodarska, socialna in ekološka funkcija. Ekološka funkcija je povezana s človekovim vrednotenjem narave. V prispevku osvetljujemo tri vrste vrednotenja naravnih dobrin, ki smo jih poimenovali neistrumentalno, ekosistemsko in institucionalno. Z njimi se soočamo pri lastniških odnosih javne, skupne in zasebne lastnine. Ker so kategorično drugačne od danes prevladujočega ekonomskega vrednotenja dobrin in nobeno od teh vrednotenj ni neposredno vezano na lastništvo ali menjalno vrednost, pogosto spregledamo njihov vpliv na družbena dogajanja. Visok delež varovane narave v Sloveniji kaže na zavedanje pretežno zasebnih lastnikov, da imajo narave dobrine tudi neekonomsko vrednost.
Ključne besede: naravovarstvo, lastnina, lastništvo, ekološke funkcije, vrednotenje narave.

Abstract. By Constitution of Republic of Slovenia, "the manner in which property is acquired and enjoyed shall be established by law so as to ensure its economic, social, and environmental function." Expressed environmental function is intertwined with our evaluation of nature. Three approaches to evaluation are presented in an article, namely noninstrumental, ecological services and legal. Owners confront them in cases of public, common and private ownership management. While being neglected by economic evaluation models, and not necessarily connected with proprietarily systems, their influence is perceived and has influence in society. High share of Slovenian national territory - prevailingly private land - stands under environmental protection. However, private owners obviously tolerate measures on a basis of noneconomic evaluation of natural goods.
Key words: nature preservation, property, ownership, environmental functions, nature evaluation.

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