Lamapuidu inventuuri tulemused Eesti metsa kasvukäigu püsiproovitükkide võrgustiku andmetel
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Kuupäev
2021
Kättesaadavus
07.09.2021
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Aastal 2018-2020 viidi läbi Eesti metsa kasvukäigu püsiproovitükkide võrgustikus
lamapuidu inventuur. Lamapuidu mitmekesisus mõjutab metsaökosüsteemi ning pakub
usaldusväärset informatsiooni puistu kvaliteedi näitajate kohta. Käesoleva töö eesmärk oli
uurida majandusmetsades 373 proovitükil tehtud lamapuidu inventuuri andmeid, leida
seoseid ning teha järeldus kasvukäigu püsiproovitükkide võrgustikus oleva lamapuidu
mahu kohta. Töös vaadeldi andmeid puuliigiti, kasvukohatüübiti ja harvendusraie
esinemise sageduse järgi. Töö autor leidis, et suurim erinevus tuli esile harvendamata ja
harvendatud puistute vahel. Harvendamata puistute keskmine lamapuidu maht oli 17,6
m³/ha ja harvendatud puistutes 9,4 m³/ha. Samuti täheldati, et harvendatud aladel oli
lamapuidu karakteristikud homogeensemad kui harvendamata aladel. Lisaks oli
harvendamata aladel suurema keskmise mahuga lehtpuude lamapuit ning harvendatud
aladel okaspuude lamapuit. Kasvukohatüüpidest esines enim jänesekapsa
kasvukohatüübiga proovitükke, kuid suurim keskmine lamapuidu maht oli naadi
kasvukohatüübis.
In 2018-2020, an inventory of lying deadwood was carried out in Estonian forest research plots. Lying deadwood is an important component of forest ecosystem and provides reliable information about stand quality indicators. The aim of this work was to study the inventory data of 373 plots, find correlations and draw conclusions about the volume of lying deadwood in these plots. The data was examined by tree species, habitat types and thinning frequency. The author of this work found that the biggest difference was between uncut and thinned stands. The average volume of lying deadwood in non-thinned stands was 17,6 m³/ha and in thinned stands 9,4 m³/ha. It was also observed that the characteristics of lying deadwood were more homogeneous in thinned areas than in non thinned areas. In addition, in non-thinned areas, the indicator of higher average volume were deciduous tree species and in thinned areas, conifer tree species. Of the site types, the plots with the Oxalis site type were the most numerous, but the highest average volume of lying deadwood was in the Aegopodium L. site type.
In 2018-2020, an inventory of lying deadwood was carried out in Estonian forest research plots. Lying deadwood is an important component of forest ecosystem and provides reliable information about stand quality indicators. The aim of this work was to study the inventory data of 373 plots, find correlations and draw conclusions about the volume of lying deadwood in these plots. The data was examined by tree species, habitat types and thinning frequency. The author of this work found that the biggest difference was between uncut and thinned stands. The average volume of lying deadwood in non-thinned stands was 17,6 m³/ha and in thinned stands 9,4 m³/ha. It was also observed that the characteristics of lying deadwood were more homogeneous in thinned areas than in non thinned areas. In addition, in non-thinned areas, the indicator of higher average volume were deciduous tree species and in thinned areas, conifer tree species. Of the site types, the plots with the Oxalis site type were the most numerous, but the highest average volume of lying deadwood was in the Aegopodium L. site type.
Kirjeldus
Bakalaureusetöö
Metsanduse õppekaval
Märksõnad
bakalaureusetööd, metsastruktuur, surnud puit, majandusmetsad