African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12294

Full Length Research Paper

Soil loss prediction using universal soil loss equation (USLE) simulation model in a mountainous area in Ağlasun district, Turkey

Sezgin Hacısalihoğlu*, Ahmet Mert2, M. Güvenç Negiz2 and Bart Muys3
  1Faculty of Forestry, Karadeniz Technical University, Trabzon, Turkey. 2S.D.U. Sütçüler Hasan Gürbüz Vocational School, Isparta, Turkey. 3Division Forest, Nature and Landscape, K.U. Leuven, Belgium.
Email: [email protected]

  •  Accepted: 06 May 2010
  •  Published: 14 June 2010



Land degradation and soil loss is a global event. Human induced pressures on the natural ecosystems are still in progress as well as conservation efforts. The need for sufficient knowledge and data for decision makers is obvious hence the present study was carried out. The study area, the Ağlasun district, is in the middle west of Turkey and is characterized by a cold and sub-humid Mediterranean climate. The mountainous area is mostly covered with average low canopy closure of 11 - 40% of different forest species (52% of the study area). Universal soil loss equation (USLE) simulation model was used to predict the soil loss amounts in the study area. The results show that the predicted average soil loss amount is 7.38 (ton/ha/year). The average soil depth is about 35 cm and the soil loss tolerance limit is widely exceeded in the study area.


Key words: Soil erosion, soil loss tolerance, canopy closure, isparta.


asl, Altitude above sea level; HL, heat load; T, soil loss tolerance;GPS, global positioning system.