Saaremaa rannaroostiku kaugseire valitud kohtades
Laen...
Kuupäev
2019
Kättesaadav alates
11.09.2019
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Eesti keskkonnaseire programmis on uuritud aastaid seireobjektidena suurjärvede kui ka
erinevate väikejärvede ning mereranna suurtaimestikku. Pilliroog (Phragmites australis)
on Eesti suurim kõrreline. Pilliroogu saab kutsuda kõrgeimaks rohttaimeks. Suuremad
pilliroopadrikud võivad olla kõrguselt kahest meetrist kuni nelja meetrini. Aasias on
pilliroog üheks ehitusmaterjaliks, millest tehakse enamasti kergehitistena maju, tööriistu
ning nõusid majapidamisse. . Bakalaureusetöö eesmärgiks on mõõta pindala rannaroostikul
erinevates vööndipiirides Saaremaal ja Muhumaal ning analüüsida saadud tulemusi.
Uurimiseks laadisin alla vajalikud Landsat 8 (OLI) satelliidipildid USA geoloogiakeskuse
arhiivist. Metoodikas kasutasin programme IDRISI Taiga ja MapInfo 15.0 ja töötlesin
satelliidipilte, et saada tulemuseks rannaroostikku fotosid. Lisaks jagasin Saaremaa ja
Muhumaa 5-ks erisuurusega polügooniks, kus sain arvutada puhvervööndeid kasutades
rannaroostiku pindalasid. Lõuna-Saaremaa polügooni nr.2 suuruseks sain 607.5 hektarit,
mis oli suurim pindalalt. Kõige väiksema pindalaga oli Ida-Saaremaa polügoon nr.4, kus
tuli tulemuseks 316.2 hektarit. Üldtulemusteks sain, et rannikupindala on 2769 hektarit,
millest 2135 hektarit on kaetud rannaroostikuga.
The Estonian environmental monitoring programs have been studied for years as objects of monitoring in the large vegetation of large lakes as well as various small lakes and seashore. Reed (Phragmites australis) is Estonia's largest desert. The reed can be called the highest herbaceous plant. Larger reed can be from two meters to four meters high. In Asia, reed is one of the building materials, mostly made of lightweight houses, tools and household items. The aim of the Bachelor's thesis is to measure the area on the coastline in different zone boundaries in Saaremaa and Muhu and analyze the results. I downloaded the necessary Landsat 8 (OLI) satellite images from the archives of the US Geological Survey for investigation. In the methodology I used IDRISI Taiga and MapInfo 15.0 and processed satellite images to get photos of the beach shrine. In addition, I divided Saaremaa and Muhumaa into 5 polygons of different sizes, where I was able to calculate the areas of the beach builder using buffer zones. The size of South Saaremaa Polygon No.2 was 607.5 hectares, which was the largest area. The smallest area was the eastern Saaremaa polygon No.4 where the result was 316.2 hectares.The overall result is that the coastal area is 2769 hectares, of which 2135 hectares are covered with coastal pollution.
The Estonian environmental monitoring programs have been studied for years as objects of monitoring in the large vegetation of large lakes as well as various small lakes and seashore. Reed (Phragmites australis) is Estonia's largest desert. The reed can be called the highest herbaceous plant. Larger reed can be from two meters to four meters high. In Asia, reed is one of the building materials, mostly made of lightweight houses, tools and household items. The aim of the Bachelor's thesis is to measure the area on the coastline in different zone boundaries in Saaremaa and Muhu and analyze the results. I downloaded the necessary Landsat 8 (OLI) satellite images from the archives of the US Geological Survey for investigation. In the methodology I used IDRISI Taiga and MapInfo 15.0 and processed satellite images to get photos of the beach shrine. In addition, I divided Saaremaa and Muhumaa into 5 polygons of different sizes, where I was able to calculate the areas of the beach builder using buffer zones. The size of South Saaremaa Polygon No.2 was 607.5 hectares, which was the largest area. The smallest area was the eastern Saaremaa polygon No.4 where the result was 316.2 hectares.The overall result is that the coastal area is 2769 hectares, of which 2135 hectares are covered with coastal pollution.
Kirjeldus
Bakalaureusetöö
Loodusvarade kasutamine ja kaitse õppekaval
Märksõnad
bakalaureusetööd, roostikud, kaugseire, Saaremaa