Surnud puidu maht rohunditerikastes kuusikutes
Laen...
Kuupäev
2021
Kättesaadavus
08.09.2021
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Surnud puit on metsas väga oluline ökosüsteemi osa, sest see võimaldab metsades elada
liikidel, kes suudavad toimida tänu surnud puidu olemasolule. Antud töö tulemusi saab
tulevikus kasutada kasvukohatüüpides toimunud surnud puidu mahtude muutuste
hindamisel.
Käesoleva lõputöö eesmärgiks on hinnata püstiste surnud puude ja lamapuidu mahtu
kahekümne ühel proovitükil, mis on Keskkonnaregistri (EELIS) andmetel hinnatud
Natura 2000 elupaigatüübiks „Hariliku kuusega Picea abies rohunditerikkad
Fennoskandia metsad“.
Töös kasutatud andmed on kogutud 2019 aasta püsiproovi tükkide inventeerimise käigus.
Töös on kasutatud püstiste surnud puude, tüügaste ja lamapuidu andmeid. Andmeid
analüüsiti MS Exceli keskkonnas ja ülevaate andmiseks koostati erinevaid tabeleid ja
jooniseid.
Tulemustest selgus, et kõige rohkem surnud puitu esines angervaksa kasvukohatüübis.
Naadi ja jänesekapsa kasvukohatüüpides oli surnud puidu maht natuke väiksem. Surnud
puidu mahust suurima osa moodustas harilik kuusk, millele järgnesid arukask ja harilik
haab.
Dead wood is very important part of forest ecosystems, because dead wood provides habitation for spieces that only live in deaad wood or in lying deadwood. Results of this study can be used for assessment of habitat type changes in standing and lying deadwood volumes. This thesis aim is to evaluate the amount of dead wood (snags and logs) at twenty-one sample plots that are presented as Natura 2000 habitat type “Fennoscandian herb-rich forest with Picea abies“ in EELIS (Estonian Nature information system) database. Sample plots were all located in South-Estonia. Data what is used in this aim was gathered at 2019 from sample plots. In this aim we used data about standing deadwood and lying deadwood. Complete analyzes of data containing information about this topic was conducted to achive the main aim of this work. Data was analyzed using MS Excel To make the work easier to follow, some figures and tables were created from the result of the data analyzes. Results showed that the higest amount of dead wood appeared in Filipendula site type. Aegopodium and Oxalis sites had also high dead wood volumes. The biggest amount of dead wood was Picea abies dead wood followed by Betula bendula and Populus tremula.
Dead wood is very important part of forest ecosystems, because dead wood provides habitation for spieces that only live in deaad wood or in lying deadwood. Results of this study can be used for assessment of habitat type changes in standing and lying deadwood volumes. This thesis aim is to evaluate the amount of dead wood (snags and logs) at twenty-one sample plots that are presented as Natura 2000 habitat type “Fennoscandian herb-rich forest with Picea abies“ in EELIS (Estonian Nature information system) database. Sample plots were all located in South-Estonia. Data what is used in this aim was gathered at 2019 from sample plots. In this aim we used data about standing deadwood and lying deadwood. Complete analyzes of data containing information about this topic was conducted to achive the main aim of this work. Data was analyzed using MS Excel To make the work easier to follow, some figures and tables were created from the result of the data analyzes. Results showed that the higest amount of dead wood appeared in Filipendula site type. Aegopodium and Oxalis sites had also high dead wood volumes. The biggest amount of dead wood was Picea abies dead wood followed by Betula bendula and Populus tremula.
Kirjeldus
Bakalaureusetöö
Metsanduse õppekaval
Märksõnad
bakalaureusetööd, lamapuud, tüükad, surnud puud