20.500.12556/DKUM-76748 Kriteriji za vrednotenje pestrosti travne ruše Criteria for evaluating grassland diversity Na Fakulteti za kmetijstvo in biosistemske vede je od leta 1995 na polnaravnem travinju zasnovan trajni travniški poskus. V diplomskem delu smo primerjalno proučili vpliv različnih načinov rabe (2-kosna; 4-kosna) tekom več let (1998, 2002 in 2019) na botanično sestavo travne ruše. Botanično pestrost travne ruše smo ovrednotili z različnimi indeksi (H – Shannonov indeks; D – Simpsonov indeks; D1 – Simpsonov indeks pestrosti; D2 – Simpsonova dominanca; pmax – Berger-Parkerjeva dominanca; E – enakomernost; Sim – indeks podobnosti). Floristični popisi so bili v eksperimentalnih letih (1998, 2002, 2019) opravljeni v mesecu maju. Na osnovi rezultatov ugotavljamo, da pogostost košnje značilno vpliva na delež trav in metuljnic v travni ruši, medtem ko na delež zeli nima vpliva. Za 2-kosno rabo je značilen večji delež metuljnic in manjši delež trav, za 4-kosno rabo pa velja ravno obratno. Skupno število rastlinskih vrst se statistično značilno razlikuje po posameznih letih, medtem ko način rabe travne ruše nanje nima značilnega vpliva. Pri vrednotenju pestrosti rastlinskih vrst z različnimi indeksi so vrednosti vseh proučevanih indeksov pokazale, da je za manj intenziven način rabe (2-kosna raba) značilna večja vrstna oziroma botanična pestrost kot za bolj intenzivno rabo (4-kosna raba). Since 1995, an experiment on a permanent meadow of semi-natural grassland at the Faculty of Agriculture and Life Sciences was conducted. The different intensity influence of sward uses (2-cuts per year; 4-cuts per year) were comparatively studied over several years (1998, 2002, and 2019) on the botanical composition of grassland. The floral diversity of sward was evaluated with different indices (H - Shannon index; D - Simpson index; D1 - Simpson diversity index; D2 - Simpson dominance; pmax - Berger-Parker dominance; E - evenness; Sim - similarity index). Examining the floristic composition in the experimental years (1998, 2002, 2019) was conducted in May. Based on the results, we found out that the frequency of cutting regimes significantly affects the proportion of grasses and legumes in the sward while it has not changed the ratio of herbs. A treatment with 2-cuts per year is characterized by a more significant percentage of grassland legumes and a lower proportion of grasses, while treatment with 4-cuts per year results in the precise opposite. The total number of plant species differs statistically significantly from year to year, while the frequency of cutting regimes does not affect the total number of plant species. When evaluating the diversity of plant species with different indices, the values of all studied indices showed that less intensive grassland use (2-cuts per year) is characterized by significantly higher species or botanical diversity than the more intensive ones (4-cuts per year). travinje pogostost košnje botanična sestava indeksi pestrosti grassland cutting frequency botanical composition diversity indices true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-06-30 11:17:25 2020-07-27 11:54:40 2022-08-09 13:55:38 2020-07-29 03:24:23 2020 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:LEAV9LUU VS_Ferme_Mihela_2020.pdf VS_Ferme_Mihela_2020.pdf 1 D2CDAD7B0DD106A26507098C8E086757 a736b7e2da41d4cdd882af13f0c5f8f3ca4511c09f648094c01fc40695ee0847 60e132e8-7c11-11eb-bb7a-00155d0001ca 20.500.12556/dkum/ecd27caf-1817-4cd4-b85f-ad6109ed1aac https://dk.um.si/Dokument.php?lang=slv&id=143274 Fakulteta za kmetijstvo in biosistemske vede 0 0 0