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Razširjenost in gospodarski pomen jesenov (Fraxinus sp.) v območni enoti Kranj : diplomsko delo - univerzitetni študij = Distribution and economic role as ash species (Fraxinus sp.) in regional Kranj : graduation thesis - university studies
Sever, Anže
Najbolj razširjena vrsta jesena v OE Kranj je veliki jesen. Manj zastopan je mali jesen, medtem ko prisotnost poljskega jesena v raziskavi ni bila potrjena. Veliki jesen največje deleže dosega v ...odsekih, ki se nahajajo ob večjih rekah in po nižinah. Raste na vlažnih in svežih rastiščih, na silikatnih in karbonatnih podlagah. Mali jesen pa je izrazito vrsta suhih, južnejših rastišč na karbonatni podlagi. Nabrani primerki so pokazali precejšno variabilnost listov pri vseh vrstah. Zato je pri določanju jesenov, predvsem to velja za veliki in poljski jesen, potrebno upoštevati več znakov. Zaradi tega so za določevanje jesenov primernejši določevalni ključi, ki upoštevajo večje število znakov. Veliki jesen je hitro rastoča drevesna vrsta,pri kateri lahko s primernim in pravočasnim gojenjem pridelamo visoko kakovosten les. Zato so v diplomski nalogi podane nekatere smernice za gojenjevelikega jesena. Mali jesen pa je pomembna vrsta varovalnih gozdov.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [A. Sever], 2005
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