Landsat Görüntüleri Kullanılarak Kayın ve Meşe Meşcerelerinin Yüzey Sıcaklığı Farklılığının İncelenmesi

Bölgelerin iklimsel özelliklerinin, ağaç türlerinin çeşitliliğini ve yapısal özelliklerini etkilemesine karşın bitki örtüsü yapısı da mikro iklim üzerinde etkili olmaktadır. Bu çalışmada, bu bilgiye dayanarak, Şile’nin Mercanköşk Orman İşletme Şefliği sınırı içerisinde kalan ve homojen yapı sergileyen kayın ve meşe meşcereleri ele alınarak yüzey sıcaklığı farklılıkları ortaya konulmaya çalışılmıştır 2011 Landsat TM-5 ve 2013, 2014 ve 2015 yıllarına ait Landsat 8 - ETM termal görüntüleri üzerinden elde edilen yüzey sıcaklığı bilgileri, meşcere verisi ile ilişkilendirilerek istatistiksel olarak karşılaştırılmıştır. Elde edilen sonuçlara göre, iki ağaç türüne ait homojen meşcere alanları arasında 2.4°C’ye varan yüzey sıcaklığı farklarının oluştuğu tespit edilmiştir. Bölgesel özelliklerin hemen hemen benzer olduğu şeflik sınırları içerisinde oluşan bu sıcaklık farkı, iklimsel açıdan gözardı edilemeyecek bir etki yaratmaktadır. Özellikle küresel ısınmayla mücadele kapsamında yapılan hazırlık çalışmalarında, bu bilgilerin bölgesel envanter olarak kullanılmasının, elde edilecek başarı üzerinde etkili olacağı düşünülmektedir.

Investigation of Surface Temperature Differentiation of Fagus and Quercus Stands by Using Landsat Images

While climatic features of regions affect the variety of tree species and their structures, thevegetation structures of the regions are effective on micro climate. In this study, thermal differentiations in theFagus and Quercus stands which are homogenous in structure and are found within the boundaries ofMercanköşk Forest Sub-District Directorate in Şile are presented.The surface temperature data which is obtained by Landsat TM-5 and Landsat 8 - ETM thermal imagesduring 2011, 2013, 2014 and 2015 is compared statistically in relation to data obtained from the stand.According to the results obtained, it has been found out that there is a difference of surface temperature up to2.4°C among tree types. This surface temperature difference which is within the boundaries of forest subdistrictdirectorate having similar regional features has an undeniable effect in terms of climate. It has beenthought that using this information as a regional inventory in the preparatory studies within the scope oftackling with global warming will be effective on the success to be achieved.

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