OZET Genel anlamda yuzeyi orten topragin akarsu ve ruzgârlarla asindirilarak tasinmasi olayi olan erozyon, toprak ortusunun incelmesi ve zeminin coraklasmasiyla sonuclanan kuresel bir olgudur. Erozyonu en iyi onleyen unsur ise ormanlardir. Topragin korunmasinda hayati onem tasiyan ormanlara en cok zarari orman yanginlari vermektedir. Cunku orman yanginlarindan sonra yagmur damlalarinin zemine olan etkisi degisir. Toprak su dengesi bozulur ve erozyona acik hale gelir. Calismada 05.09.2013 tarihinde Amanos Daglari’nin Hatay ili sinirlarindaki orman yangini sonucu erozyona acik hale gelen alanda yangin oncesinde meydana gelen ve yangindan sonra meydana gelebilecek erozyon sonucu sediment kaybi hesaplanmis, boylece orman yanginlarinin erozyona etkisi ortaya konmustur. Bu amacla Hatay Orman Mudurlugu’nden alinan yanan orman alanina ait sayisal harita, Iklim Verileri, Harita Genel Komutanligi’na Ait Sayisal Izohips verileri, Sayisal Yukseklik Modeli (DEM), Toprak Haritasi ve Uydu Goruntusu kullanilmistir. Calisma uc asamadan olusmaktadir. Ilk asamada inceleme alaninda yangin oncesine ait erozyonla tasinan sediment miktari hesaplanmistir. Ikinci asamada ise yangin sonucu orman ortusunden yoksun alanda olusacak erozyonla tasinan sediment miktari hesaplanmistir. Her iki asama icin de RUSLE (Revised Universal Soil Loss Equation) yontemi kullanilmistir. Yapilan analizler sonucunda yangin sonucu zarar goren orman ortusunden yoksun alanda erozyona yuksek ve cok yuksek duyarli alanlar artarken, cok dusuk, dusuk ve orta duyarliliktaki alanlarda azalma oldugu belirlenmistir. Ayrica yangindan onceki surec icin erozyonla tasinan toprak miktarinin 0-32.57 ton/ha/yil iken, yangindan sonraki surecte ise bu miktarin 0-144.70 ton/ha/yil oldugu hesaplanmistir. Yangin sonrasindaki surecte erozyonla tasinan toprak miktarinin oncesine gore 4.44 kat arttigi belirlenmistir. Ucuncu asamada arazi calismasi yapilmistir. Bu calisma sirasinda arazinin yangin oncesi surecte mevcut topografya ve iklim kosullarinin bir sonucu olarak yogun erozyon tahribati altinda oldugu gozlemlenmistir. Yangin sonrasinda tamamen tahrip olan orman ortusunun koruyucu etkisinin olmamasinin erozyonu daha da arttiracagina dikkat cekilerek bir an once agaclandirma calismalarinin baslamasinin gerekliligi belirtilmistir. Calismanin orman yanginlarinin toprak erozyonuna olan etkisini ortaya koymaya yonelik ampirik calismalardan olmasi nedeniyle literature katki yapmasi beklenmektedir. Anahtar Kelimeler: Orman Yanginlari, Erozyon, Amanos Daglari, RUSLE, Cografi Bilgi Sistemleri ABSTRACT Erosion which is typically the transportation of soil covering the surface via rivers and winds, is a global phenomenon resulting from thinning of land cover and aridity of soil. The best element preventing the erosion is forests. However, the most detrimental element to the forests which have vital importance in protecting the soil is forest fires. Because; the impact of the raindrops into the land is changed after forest fires, as the soil water balance deteriorates and it becomes vulnerable to the erosion. In this study, the amount of loss of sediments in the area which has become vulnerable to the erosion due to forest fire occurred at 05.08.2013 in the part of Amanos Mountains lying within the frontiers of Hatay was calculated for both the erosions which have occurred before the forest fire and could possibly occur right after the fire. Thus, the impact of forest fires into the erosion was proved. To this end; digital map belongs to the burnt forest land taken from Hatay Forestry Department, weather data, digital contour line data belonging to General Command of Mapping, Digital Elevation Model (DEM), soil map and satellite image were used. The study comprises 3 phases. Initially, the amount of sediments carried by the erosion occurred in the study area before the forest fire was calculated. At second stage, the amount of sediments which could be carried by possible erosion would occur in that area which has become deprived of forest coverage due to the forest fire. RUSLE (Revised Universal Soil Loss Equation) method was used for both phases. After analysis made, it was determined that there has been a decrease on the places with very low, low and moderate susceptibility while the places with high and very high susceptibility to the erosion in that area which has become deprived of forest coverage due to the forest fire have increased. Furthermore, it was calculated that the amount of soil carried by the erosion after the forest fire was 0-144.70 ton/ha/year while it was 0-32.57 ton/ha/year before the forest fire. It was identified that the amount carried by the erosion after the forest fire was 4.44 times higher than before. At third stage, field work was made. During this study, it was observed that the land was under heavy destruction of erosion before the forest fire due to existing topographic and climate conditions. As it was pointed out that the loss of protective effect of forest coverage which has completely been destroyed after forest fire would further increase the erosion, it was decided that it is necessary to start afforestation as soon as possible. As it is one of the empirical studies aimed at proving the impact of forest fires into the erosion, it is expected that this study would contributed to the literature. Keywords: Forest fires, Erosion, Amanos Mountains, RUSLE, Geographical Information Systems