Poškodovanost sestojev listavcev pri redčenju s klasično in strojno sečnjo

diplomsko delo - visokošolski strokovni študij - 1. stopnja

Luka Povhe (Author), Jurij Diaci (Mentor)

Abstract

Raziskava je potekala v GGE Mirna gora, KE Semič - Metlika, oddelek tri. Namen naloge je ponovna primerjava klasične in strojne sečnje ter spravila. Gre za ponovitev pred trinajstimi leti začete raziskave, zato smo študijo izpeljali na primerljiv način. Oddelek je bil že razdeljen na pet stratumov: dva za strojno tehnologijo, dva za klasično in eden, kjer zaradi nadaljnjih raziskav ni bilo ukrepanja. Pred začetkom sečnje smo poiskali središča ploskev in jih dodatno označili. Po končani sečnji smo popisali poškodbe in sproščenost izbrancev. Ugotovili smo 19,4 % poškodovanost pri klasični tehnologiji in 24,4 % poškodovanost pri strojni (nove, nove in stare poškodbe). Skupna poškodovanost (nove, stare, nove in stare poškodbe) pa je pri klasični tehnologiji 35 % in pri strojni tehnologiji 49,4 %. Glede starosti poškodb je pri obeh tehnologijah največ starih poškodb in pri obeh tehnologijah jih je največ na deblu. Glede sproščenosti izbrancev smo ugotovili večjo pri klasični tehnologiji. Tudi vrednosti svetlobe so višje v sestojih klasične sečnje, kar lahko utemeljimo z jakostjo redčenja. Najmanjše vrednosti svetlobe so bile v stratumu pet, kjer ni bilo redčenja in drugih ukrepanj. Primerjava z rezultati tujih raziskav nakazuje, da je v Sloveniji več poškodb pri strojni sečnji, kar je lahko posledica visokih normativov.

Keywords

izbiralno redčenje;strojna sečnja;klasična sečnja;gojenje gozdov;poškodbe pri sečnji;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[L. Povhe]
UDC:	63024:6303:630*46(043.2)=163.6
COBISS:	68764675
Views:	243
Downloads:	57
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Damage to broadleaf stands following thinning with classical and mechanized harvesting
Secondary abstract:	The research was conducted in the Local Unit of Slovenian Forest Service in Črnomelj, the Forest Management Unit Mirna gora, section no. 3. The purpose of the thesis was to re-compare classical and mechanized felling and harvesting. As this kind of research was carried out 13 years ago, our study was conducted in a comparable manner. The department had already been divided into five strata: two for mechanized technology, two for classical technology, and one with no intervention due to further research. Before harvesting, the centres of the plots were found and additionally marked. After the felling, damage and forest canopy density were recorded. The findings show 19.4 % of damage in classical technology and 24.4 % of damage in mechanized technology (new, new and old damage). The total damage (new, old, new and old damage) is 35 % in classical and 49.4 % in mechanized technology. There is more old damage in both technologies. As far as classical technology is concerned, the worst damage was found on tree trunks, in mechanized technology, the most damage was found on tree trunks, too. The study found that forest canopy density is lower in classical technology. Light availability is higher in the stands of classical felling, which can be justified by the intensity of thinning. The lowest light availability was found in stratum five, where there was no thinning or other action. The comparison with the results of foreign research indicates that there is more damage in mechanized felling in Slovenia.
Secondary keywords:	selective thinning;mechanised harvesting;classical harvesting;silviculture;harvest damage;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za gozdarstvo in obnovljive gozdne vire
Pages:	IX, 69 f., [5] f. pril.
ID:	13063111