Järvselja ürgmetsa kvartali puistu püsiproovitükkide kirjeldus
Laen...
Kuupäev
2015
Kättesaadavus
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Maailmas ja Eestis on vähe säilinud inimese poolt täiesti puutumatuid metsi. Inimene
muudab oma tegevusega metsa väljanägemist nii otseselt kui kaudselt. Raiete teostamisel ei
jää metsa surnud puid, millest peaks moodustama lagupuit. Lagupuit on tähtis loodusliku
mitmekesisuse säilimiseks.
Töö eesmärgiks on uurida, kas Järvselja ürgmetsa kvartali püsiproovitükkide andmeid
analüüsides saab väita, et tegemist on põlismetsaga.
Uurimistöös kasutatakse Eesti Maaülikooli metsakorralduse osakonna metsa kasvukäigu
modelleerimise töörühma poolt kogutavat püsiproovitükkide andmestikku.
Püsiproovitükkide kirjelduse ja analüüsi põhjal võib väita, et Järvselja ürgmets on omadustelt
sarnane põlismetsale. Tulemustest selgus, et ürgmets on puude poolest liigirikas, esineb
mitmeid rindeid, proovitükid olid struktuurielementide poolest erinevad ja lagupuidu osakaal
oli märkimisväärne.
Edaspidised uuringud ürgmetsa kohta on vajalikud, et mõista loodusliku mitmekesisuse
vajalikkust ja vaadelda, kuidas mets ilma inimese mõjuta kasvab.
There are few forests in the world and in Estonia, which are completely uninfected by human activity. Man affects forest appearance both directly and indirectly. With deforesting man carries out most of dead trees from forest. Without dead trees there can not arise woody derbis, which is very important for natural variety. The purpose of this Thesis is to analyze and describe Järvselja old-growth forest permanent sample plots and to examine, if there are natural forest qualities in Järvselja old-growth forest. The Thesis contains permanent sample plots data from the network of permanent forest growth plots. Based by the analyzes of permanent sample plots, it could be argued, that Järvselja oldgrowth forest has many natural forest qualities. The study shows that there were many different tree species, various fronts and considerable amount of woody derbis in Järvselja old-growth forest. Further studies about Järvselja old-growth forest are necessary to understand the forest growth without human influence.
There are few forests in the world and in Estonia, which are completely uninfected by human activity. Man affects forest appearance both directly and indirectly. With deforesting man carries out most of dead trees from forest. Without dead trees there can not arise woody derbis, which is very important for natural variety. The purpose of this Thesis is to analyze and describe Järvselja old-growth forest permanent sample plots and to examine, if there are natural forest qualities in Järvselja old-growth forest. The Thesis contains permanent sample plots data from the network of permanent forest growth plots. Based by the analyzes of permanent sample plots, it could be argued, that Järvselja oldgrowth forest has many natural forest qualities. The study shows that there were many different tree species, various fronts and considerable amount of woody derbis in Järvselja old-growth forest. Further studies about Järvselja old-growth forest are necessary to understand the forest growth without human influence.
Kirjeldus
Märksõnad
bakalaureusetööd