Primerjava registra urbane drevnine v Idriji od leta 2010 do 2024

Istenič, Rok (author), Jarni, Kristjan (mentor)

Z diplomsko nalogo smo želeli prikazati spremembe stanja urbane drevnine mesta Idrija v zadnjih 14 letih. To smo dosegli s primerjanjem rezultatov popisa leta 2010 in rezultatov, ki smo jih pridobili z našim popisom leta 2024. Popisali smo urbano drevje na enakem območju, tako da smo ugotovili njihovo število, vrstno sestavo, prsni premer, višino, fiziološko starost, rastni prostor v krošnji, poškodovanost, vzrok poškodovanosti ter predpisali ukrepe, s katerimi bi rastne razmere izboljšali. Popisali smo 1301 drevo, 84,5 % listavcev ter 15,5 % iglavcev. Prisotnih je bilo 74 različnih vrst iz 48 rodov. Popisane prevladujoče vrste, kot tudi rodovi so bili skoraj enaki kot v popisu leta 2010. Najvišji odstotek dreves sta pri obeh popisih predstavljala lipa (Tilia platyphyllos) in gorski javor (Acer pseudoplatanus). Pri primerjavi deležev izmerjenih ali ocenjenih parametrov, smo ugotovili, da je pri prsnem premeru v našem popisu najpogostejši razred z intervalom 10–19 cm, v prejšnjem popisu pa razred do 9 cm. V obeh popisih je največ dreves umeščenih v višinski razred z razponom 11–15 m, po fiziološki starosti pa so najpogostejša drevesa srednje starosti. Odstotek dreves z neomejenim rastnim prostorom je v našem popisu manjši, večji pa je delež zdravih, nepoškodovanih dreves. Pri popisu leta 2010 je bil največji odstotek poškodb posledica abiotskih dejavnikov, pri našem popisu pa biotskih. Pri obeh popisih je bil največkrat predpisan ukrep čiščenja krošnje.

• Language: Slovenian
• Keywords: Idrija, urbana drevnina, popis, primerjava stanja, kataster dreves
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [R. Istenič]
• Year: 2024
• PID: 20.500.12556/RUL-162136
• UDC: 630*5:630*92(497.4Idrija)(043.2)
• COBISS.SI-ID: 208147203
• Publication date in RUL: 19.09.2024

Secondary language

• Language: English
• Title: Comparison of urban tree register in Idrija from 2010 to 2024

Abstract

The aim of this graduation thesis was to illustrate the changes in the condition of urban trees in the city of Idrija over the past 14 years. This was achieved by comparing the results of the 2010 inventory with the data we collected during our inventory. We inventoried urban trees within the same area, recording their quantity, species composition, diamater at breast height (DBH), height, physiological age, crown space, damage, causes of damage, and recommended measures to improve growth conditions. We recorded a total of 1,301 trees, of witch 84.5% were deciduous and 15.5% coniferous. A total of 74 different species from 48 genera were identified. The predominant species and genera in our survey were nearly identical to those recorded in the 2010 survey. The highest percentage of trees in both surveys were common lime (Tilia platyphyllos) and sycamore maple (Acer pseudoplatanus). In comparing the proportions of measured or estimated parameters, we found that the most frequent DBH class in our survey was within the 10–19 cm range, whereas the most frequent class in the previous survey was up to 9 cm. In both surveys, most trees were placed in the height class ranging from 11–15 m, with medium-aged trees being the most common by age. The percentage of trees with unrestricted growing space in our survey was lower, while the proportion of healthy, undamaged trees was higher. In the 2010 survey, the largest percentage of damage was caused by abiotic factors, whereas in our survey, it was primarily due to biotic factors. In both surveys, the most frequently prescribed measure was crown cleaning.

• Keywords: Idrija, urban trees, survey, comparison of condition, tree inventory