ESTIMATING ABOVE-GROUND CARBON BIOMASS USING SATELLITE IMAGE REFLECTION VALUES: A CASE STUDY IN CAMYAZI FOREST DIRECTORATE, TURKEY
Forest ecosystems which contain half of the terrestrial carbon deposits; play a significant role in shaping the global climate. Two different methods are used to determine the above-ground carbon stock capacity of forestlands. Direct measurement method takes a long time and requires both extensive a...
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Veröffentlicht in: | Šumarski list (1945) 2015-01, Vol.139 (7-8), p.369-376 |
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Sprache: | eng |
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Zusammenfassung: | Forest ecosystems which contain half of the terrestrial carbon deposits; play a significant role in shaping the global climate. Two different methods are used to determine the above-ground carbon stock capacity of forestlands. Direct measurement method takes a long time and requires both extensive as well as expensive field and laboratory work. One of the more indirect methods, satellite imaging on the other hand, costs less, is easier and practical compared to direct methods. It is also easier to integrate into geographic information systems (GIS). This paper provides a regression equation between the reflection values from RapidEye high resolution satellite image and sample areas where terrestrial aboveground biomass (AGB) carbon stock capacity was calculated by direct measurement method. As a result of the calculations made, using the RapidEye imagery and a "Band 4" devised equation producing R super(2)=0.71 depending upon the data from Erzurum Camyazi Forest Directorate encompassing 9,917 ha study area, the amount of carbon stored within stands was found 285 208 tons. From this value, we can conclude that average carbon stock of the study area is 28.8 tons/ha.Original Abstract: Postoje tri glavna nalazista ugljika na svijetu. To su atmosfera, zemaljski i oceanski ekosustavi. Sume su najvece zemaljsko nalaziste ugljika. Postoji linearni odnos izmedu kolicine sumskih podrucja i pohranjenog ugljika. Takoder, u kontekstu Kyoto protokola, sumska zemljista i kolicina pohranjenog ugljika jako su vazni za razmjenu ugljika u nadolazecim godinama. Svrha ovog istrazivanja je formalizirati jednadzbu regresije izmedu kapaciteta pohrane nadzemnog ugljika izracunatog kroz ekstenzivni terenski pregled 344 podrucja uzoraka u Direkciji suma Camyazi, Turska, te vrijednosti refleksije koje odgovaraju svakom uzorku od slika RapidEye. U istrazivanju su se koristili inventarni podaci plana gospodarenja te tehnike daljinskog istrazivanja za utvrdivanje kolicine ugljika pohranjene u sastojim unutar granica Direkcije suma Camyazi, Turska. Kao rezultat izvrsenih kalkulacija, koristenjem slika RapidEye te (Pojas 4) super(2) izvedene jednadzbe koja daje R super(2)=0.71, ovisno o podacima Direkcije suma Erzurum Camyazi, utvrdeno je da je kolicina ugljika pohranjena u sastojim iznosila 285 208 tona. Iz te vrijednosti mozemo zakljuciti da je prosjecna pohrana ugljika u ispitivanom podrucju 28.8 tona/ha. Tehnike daljinskog istrazivanja koristene u ovome istrazivanju pokazale su da te |
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ISSN: | 0373-1332 1846-9140 |