Proučevanje vplivov zimskega dopolnilnega krmljenja jelenjadi (Cervus elaphus L.) na prostorsko razporeditev in obseg poškodb gozdnega mladja na Snežniškem območju : diplomsko delo - visokošolski strokovni študij

Semenič, Boris (author), Adamič, Miha (mentor), Jerina, Klemen (comentor)

Eden največjih problemov, s katerimi se spopadajo lastniki in gojitelji slovenskih gozdov, je prekomerna objedenost gozdnega mladja. Najpomembnejši izmed ukrepov za zmanjševanje oziroma preprečevanje škod v gozdovih naj bi bila krmišča, oziroma zimsko dopolnilno krmljenje. Namen naloge je bil preučiti vplive zimskega dopolnilnega krmljenja na prostorsko razporeditev in obseg poškodb gozdnega mladja. V ta namen je bilo obdelanih pet krmišč, okrog katerih so položili po štiri transekte, ki so paroma oklepali 90 stopinj. Na različnih oddaljenostih od centralnih krmišč so v nadaljevanju postavili vzorčne ploskve. Skupno so v analizo zajeli 142 ploskev, na katerih so popisali 4078 osebkov gozdnega mladja, od katerih je bilo poškodovanih 1838 osebkov, oziroma 45 %. Najbolj poškodovane vrste so bile gorski javor, jelka in jerebika. Največjo poškodovanost je bila zabeležena v višinskem razredu od 30 do 50 centimetrov. Rezultati so pokazali, da zimsko dopolnilno krmljenje nima večjega vpliva na razporeditev in obseg poškodb gozdnega mladja. Ugotovljeno je bilo, da z oddaljenostjo od krmišč gostota osebkov narašča, delež objedenosti pa se pri manj priljubljenih drevesnih vrstah manjša, pri bolj priljubljenih pa ostaja ne glede na oddaljenost zelo visok. Na podlagi teh ugotovitev sklepajo, da so gostote osebkov na obravnavanem območju visoke,sodijo tudi, da so prav gostote najpomembnejši dejavnik pri visoki objedenosti.

• Language: Slovenian
• Keywords: jelenjad, Cervus elaphus L., zimsko dopolnilno krmljenje, oddaljenost, objedenost, gostota, gozdno mladje, snežniško območje
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [B. Semenič]
• Year: 2009
• Number of pages: IX, 37 str.
• PID: 20.500.12556/RUL-15825
• UDC: 630*15(497.3 Snežnik)=163.6
• COBISS.SI-ID: 2507686
• Publication date in RUL: 11.07.2014

Secondary language

• Language: Unknown

Abstract

One of the biggest problems that forest owners and silviculture experts in Slovenia have to deal with is the excessive damage to forest saplings caused by game. The most important measure to mitigate or prevent damage in the forest are supposed to be supplemental feeding places or winter supplemental feeding. This thesis aimed to study the effects of winter supplemental feedingon the spatial distribution and extent of damage to forest saplings. Tothis purpose, we examined five feeding places with four transects laid out in pairs around them at an angle of 90 degrees. Sample plots were then specified at various distances from the central feeding places. In total we analyzed 142 plots and listed 4078 forest sapling specimens, of which 1838 specimens or 45% were damaged. The most damaged species were sycamore maple, fir and rowan berry trees. The highest damage rate was recorded in the 30 to 50 cm height class. The results showed that winter supplemental feeding has nosignificant effect on the distribution and extent of damage to forest saplings. We established that the density of specimens increased the farther away we moved from the feeding places, while the share of damage caused by game decreased with less popular tree species. The share remained very high with more popular tree species regardless of their distance from the feeding places, giving us ground to conclude that the density of specimens in the areaunder investigation was high. We are also convinced that density represents the most important factor for excessive damage caused by game.