Maakasutuse muutused Eesti erametsades läbi ajaloo
Laen...
Kuupäev
2019
Kättesaadav alates
10.09.2019
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Antud töö uurimisteemaks on Eesti erametsade maakasutuse muutused läbi ajaloo.
Sarnaseid töid on koostatud riigimetsas asuvate püsiproovitükkide kohta, kuid Eesti
erametsade ajaloolisi muutusi koondav töö siiamaani puudus.
Töö eesmärk on anda ülevaade Eesti erametsades toimunud maakasutuste muutustest
ning leida nende muutuste taga olevaid põhjuseid. Selleks valiti välja 970 metsaeraldist
üle Eesti. Maakasutuse uurimiseks kasutati Maa-ameti geoportaalis asuvaid ajaloolisi
kaardikihte. Kokku kasutati kuute erinevat kaardikihti, mille abil koostati erinevad
maakasutusstsenaariumid.
Töö käigus selgus, et metsamaa on suurenenud peamiselt avamaa, põllu ja soo arvelt.
Vaid kolmandik praegustest metsaeraldistest asus juba rohkem kui sajand tagasi
metsamaal. Peamised põhjused metsamaa suurenemisel on põllumaade metsastamine
ja suuremahuline soode kuivendamine.
The research topic of this work is the changes in the land use of Estonian private forests through history. Similar works have been made on forests of permanent sample plots, but there is still no work on cosolidating historical changes in Estonian private forests. The aim of the work is to give an overview of changes in land use in Estonian private forests and to find the reasons behing these changes. For this purpose, 970 forest allocations were selected across Estonia. To investigate the land use, the Estonian Landboard historical maps were used. In total, six different layers of maps were used to create different land use scenarios. The study results revealed that forested land has increased mainly at the expense of arable land and bogs. Only a third of the current forest allocations were already in the forested land more than a century ago. The main reasons for the increase of forest land are afforestation of agricultural land and large-scale drainage of swamps.
The research topic of this work is the changes in the land use of Estonian private forests through history. Similar works have been made on forests of permanent sample plots, but there is still no work on cosolidating historical changes in Estonian private forests. The aim of the work is to give an overview of changes in land use in Estonian private forests and to find the reasons behing these changes. For this purpose, 970 forest allocations were selected across Estonia. To investigate the land use, the Estonian Landboard historical maps were used. In total, six different layers of maps were used to create different land use scenarios. The study results revealed that forested land has increased mainly at the expense of arable land and bogs. Only a third of the current forest allocations were already in the forested land more than a century ago. The main reasons for the increase of forest land are afforestation of agricultural land and large-scale drainage of swamps.
Kirjeldus
Bakalaureusetöö
Loodusvarade kasutamise ja kaitse õppekaval
Märksõnad
bakalaureusetööd, metsad, maakasutus, ajaloolised kaardid