o:9562 Certain histological characteristics of douglas-fir needles in different habitats Neke histološke karakteristike četina duglazije na različitim staništima en Abstract. Opencast coal mines of the Kolubara Mining Basin (Rudarski basen Kolubara), with the accompanying power plants, are constantly exposed to air pollution. Attempts have been made to mitigate the adverse impact on environment by means of biological recultivation by afforestation of opencast mines’ tailing disposal sites. Pseudotsuga menziesii Mirbel. Franco belongs to a group of species requently used for afforestation of such areas. Our studies, focused on substantiating the species’ resistance to air pollution, involved an analysis of this factor’s effect on changes in needles. The paper outlines the results of histological studies, which consisted of an analysis of diameter of needle cross-section, along with an analysis of share of diameter of certain tissues in crosssection. Izvod. Površinski kopovi uglja Rudarskog basena „Kolubara“ sa pratećim energetskim postrojenjima su po stalnim uticajem aerozagađenja. Biološkom rekultivacijom odlagališta jalovine površinskih kopova čovek pokušava da ublaži negativne uticaje na životnu okolinu. Pseudotsuga menziesii Mirbel. Franco je jedna od često korišćenih vrsta u pošumljavanju ovih prostora. Naša straživanja su usmerena na potvrđivanje otpornosti ove vrste na aerozagađenje i u okviru njih istraživano je delovanje ovog faktora na promene na četinama. U radu su prikazani rezultati histoloških istraživanja koja su se sastojala u analizi dijametara poprečnog preseka četina kao i udela dijametra pojedinih tkiva u poprečnom preseku. Key words: needle tissues, air pollution, open pit coal mine Ključne reči: tkiva četina, aerozagađenje, površinski kop uglja 1552101 1821-1046 2026-05-08T08:00:44.898Z 44 yes 46 Milorad Veselinović 0000-0002-2134-7631 46 Suzana Mitrović 0000-0003-1855-4418 46 Dragana Dražić 46 Dragica Stanković 46 Snežana Rajković 46 Biljana Nikolić 0000-0002-2436-8294 46 Nevena Čule 0000-0002-1846-989X application/pdf 507120 https://unilib.phaidrabg.rs/o:9562 no yes 1 70 92000001 71A07 Sustainable forestry 67-68 15 22 Beograd: Institut za šumarstvo 2013