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Po žledolomu leta 2014 je v gozdovih ostalo veliko poškodovanih dreves. Ker znanja o nastajanju lesa in skorje v poškodovanih drevesih primanjkuje, smo v Arboretumu Volčji Potok opravili raziskavo vpliva žledoloma na nastajanje lesa in skorje na drevesih, ki so v žledolomu pretrpela poškodbo krošnje. Izbrali smo 14 bukev, jih razvrstili v 4 razrede glede na stopnjo poškodovanosti krošnje (K % nepoškodovana, A % do 50 %, B % med 50 in 75 %, C % več kot 75 % poškodovana krošnja). V dvotedenskih intervalih smo iz njih odvzemali mikro-izvrtke z orodjem Trephor. Iz mikro-izvrtkov smo pripravili preparate lesa, kambija in skorje in jih analizirali s svetlobnim mikroskopom in sistemom za analizo slike. Poškodovane bukve so proizvedle od 20 do 95 % ožje ksilemske branike kot nepoškodovane, manjši je bil tudi prirastek floema. Izmed štirih razredov poškodovanosti so se pri bukvi največje razlike v debelinski rasti pokazale med razredoma A in B. After the severe ice storm in 2014, numerous damaged trees were not removed from forests. Due to the lack of general knowledge about the processes occurring in damaged trees, a study involving 14 European beeches was conducted in the Arboretum Volčji Potok. Trees were categorized by crown injury injury class K % undamaged, A % damaged less than 50 %, B % damaged between 50 and 75 %, and C % damaged more than 75 %. During the 2014 growing season, micro-cores were collected every fortnight using a Trephor tool. Changes in crowns were also observed and noted. Transverse sections of micro-cores were prepared and observed using light microscopy and an image analysis system. Xylem growth rings were 20 to 95 % narrower in damaged beech trees compared to the undamaged trees. Damaged trees also produced narrower phloem rings. The biggest differences in cambial activity in beech appeared between Class A and Class B.