SOIL EROSION RISK ASSESSMENT FOR VOLCANO CONE OF ALIDAGI MOUNTAIN BY USING USLE/RUSLE, GIS AND GEOSTATISTICS


Ozcan A. U. , UZUN O., Basaran M. , Erpul G., Aksit S., Palancioglu H. M.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.24, pp.2090-2100, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24
  • Publication Date: 2015
  • Title of Journal : FRESENIUS ENVIRONMENTAL BULLETIN
  • Page Numbers: pp.2090-2100

Abstract

USLE/RUSLE technology is the most common mathematical erosion estimation model. Together with GIS and geostatistics, the model can be used not only to determine the soil loss over small-to-large basins, but also to evaluate the spatial distribution. In this study, average annual soil loss from Alidagi Mountain, the largest volcano cone of the extinguished volcano of Erciyes, was estimated by using USLE/RUSLE model integrated with GIS and geostatistics and spatial distribution of risky areas within the was determined. R, K, and LS factors were found to be 290.60 MJ ha(-1) mm hour(-1) year(-1), 0.244 t ha hour ha(-1) MJ(-1) mm(-1) and 22.26, respectively. The variable C and sub-factors of prior land use (PLU), canopy cover (CC), surface cover (SC), surface roughness (SR) and soil moisture (SM) were calculated and evaluated. The weighted mean C values were found to be 0.016 and 0.057. The USLE/RUSLE-A value by using independent factors was found to be 9.42 ton ha(-1) year(-1). This results showed that soil losses in study area were higher more than 1 ton ha(-1) y(-1) which was irreversible soil loss for Central Anatolia of Turkey.