Razvoj gozdnih sestojev v gozdnogospodarski enoti Jelendol : diplomsko delo - univerzitetni študij

Meglič, Andreja (author), Bončina, Andrej (mentor)

V diplomskem delu je avtorica prikazala razvoj gozdov na ravni oddelkov v gozdnogospodarski enoti Jelendol od leta 1930 do danes. Primerjala je podatke iz načrtov za šest urejevalnih obdobij z začetkom veljavnosti leta 1930, 1959,1968, 1980, 1990 in 2000. Po oddelkih je analizirala razvoj lesne zaloge,drevesne sestave, prirastka, debelinsko strukturo pa je analizirala na ravni celotne enote. Lesna zaloga je v obdobju 1930-1959 naraščala, od 1959-1990 padala in po letu 1990 spet naraščala. Delež listavcev se je v analiziranem obdobju povečal za 132 %. Vzrok povečevanju deleža listavcev v skupni lesni zalogi je v spremenjenem gospodarjenju z gozdom. Delež jelke se je v skupni lesni zalogi stalno zmanjševal, za nekaj odstotkov se je zmanjšal tudi delež bukve. Povečal se je odstotek smreke, macesna in drugih drevesnih vrst. Prirastek se je v preučevanem obdobju povečeval. Debelinska struktura seje v analiziranem obdobju 1930-2000 spremenila, opazno je povečevanje debelinskega razreda A (10-30 cm) in C (nad 50 cm) ter zmanjševanje debelinskega razreda B (30-50 cm).

• Language: Slovenian
• Keywords: razvoj gozdnih sestojev, drevesna sestava, lesna zaloga, debelinska struktura, gozdnogospodarski načrt, Jelendol
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [A. Meglič]
• Year: 2009
• Number of pages: IX, 54 str.
• PID: 20.500.12556/RUL-15752
• UDC: 630*2:630*62(497.4 Jelendol)(043.2)
• COBISS.SI-ID: 2376870
• Publication date in RUL: 11.07.2014

Secondary language

• Language: Unknown

Abstract

In the thesis paper the author showed the development of the forests on the level of the divisions in the Jelendol forest management unit since the year 1930. She compared data from the plans for six of the regulatory areas, beginning in 1930, 1959, 1968, 1980, 1990 and 2000. According to divisions sheanalyzed the development of the growing stock, tree species structure, growth, while the diameter structure was analyzed on the level of the whole unit. The growing stock was increasing in size in the period between 1930 and 1959, decreasing between 1959 and 1990, and began rising again in 1990. The percentage of broadleaves in the growing stock increased for 132 percent in the analyzed period. The reason for the increase lies in the different way of thinking and forest management. The percentage of the of the silver fir tree was decreasing constantly, and the percentage of the beech tree decreased for a couple of percent as well. The percentage of the Norway spruce tree, larch tree and other tree species increased. In the analyzed period, growth rate wasincreasing. In the period between 1930 and 2000 the diameter structure changed. An increase of the percentage of the A (10-30 cm) and C (more than 50cm) diameter differentiation classes, and a decrease of the B (30-50 cm) diameter differentiation class are evident.