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| ŠUMARSKI LIST 7-8/2015 str. 67 <-- 67 --> PDF |
ESTIMATING ABOVE-GROUND CARBON BIOMASS USING SATELLITE IMAGE REFLECTION VALUES: A CASE STUDY IN CAMYAZI FOREST DIRECTORATE, TURKEY PROCJENA NADZEMNE BIOMASE UGLJIKA KORIŠTENJEM VRIJEDNOSTI REFLEKSIJE SATELITSKIH SNIMAKA: STUDIJA SLUČAJA U DIREKCIJI ŠUMA, CAMYAZI, TURSKA Burak Aricak, Alper Bulut, Arif Ogˇuz Altunel, Oytun Emre Sakici SUMMARY 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 R2=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. KEY WORDS: aboveground biomass, carbon sequestration, remote sensing, RapidEye Introduction UVOD Today, almost all of the climate scientists accept that Earth’s climate is deteriorating. The destruction of forests and wetlands is a primary contributor to global climate change. The increase in greenhouse gas concentrations and particles in the atmosphere will result in the destruction of the natural environment, depletion of the ozone layer and lead to an increase in global temperature (Ozturk 2002). Temperature rise on a global scale and climate change have caused increasing concern, urging the international parties to start negotiations to devise a solution. At the UN World Summit in Rio de Janeiro in 1992, Framework Convention on Climate Change was opened for signature to reduce greenhouse gas emissions. It entered into effect in 1994 and was signed by 192 states. Also, the Kyoto Protocol signed in 1997 as a part of the "United Nations Framework Convention on Climate Change” is the only international protocol on global warming and climate |