ak rdere ve Yahu Dere Havzalar nda (Bal kesir) Toprak Kayb n n Mekansal Da l ve Etkileyen Fakt rler - Spatial Distribution of Soil Loss and Its Affecting Factors in ak rdere and Yahu Stream Watersheds (Bal kesir)

ZArast rman n Amac : al sman n amac iki komsu havza olan ak rdere ve Yahu Derehavzalar nda toprak kayb n n ortaya konmas ve toprak kayb ndaki mekansal farkl l klar üzerindeetkili olan fakt rlerin (Arazi rtüsü, jeoloji, topografya vb.) vurgulanmas d r.Malzeme ve Y ntem: al smada bag ml degisken olan, toprak kayb n n tespitinde RUSLE -Revised Universal Soil Loss Equation- toprak kayb modeli kullan lm st r. Bag ms z degiskenleri iseegim, bak , morfografya, arazi rtüsü, kapal l k ve bonitetdir. Elde edilen veriler, tek y nlü varyansanalizi ve basit ikili korelasyon kullan larak degerlendirilmistir.Sonu : Yahu Dere havzas nda toprak kayb n n ak rdere havzas ndan daha fazla oldugu tespitedilmistir. Elde edilen sonu lar arazi rtüsü ve topografyan n havzalardaki toprak erozyonununmekansal dag l m nda bir havzadan digerine farkl l klara neden oldugunu g stermektedir.Anahtar Kelimeler: Arazi rtüsü, Jeoloji, RUSLE, Tek y nlü varyans analizi, TopografyaABSTRACTPurpose: The aim of the study is to determine soil loss in ak rdere and Yahu Stream basinswhich are two neighborhood catchments, and also put forward to factors (i.e. Landcover, geology andtopography) affecting the spatial distribution of soil loss on basins.Material and Method: In this paper, the Revised Universal Soil Loss Equation-RUSLE wasused to quantify soil loss, which is dependent variable. Independent variables are slope, aspect,morphography, land cover, crown closure, site quality and geology. The data obtained were analyzedby using one-way ANOVA and bivariate correlations.Results: More soil loss has been observed along the Yahu Stream Basin than ak rdere StreamBasin. The results show that the land cover and topography are the reason of soil loss differencesbetween basins.Key Words: Landcover, Geology, RUSLE, One-way ANOVA, Topography