Estimation and spatial distribution of some soil erodibility parameters in soils of Ilgaz National Park

Abstract

The aim of this research was to determine some erodibility factors, aggregate stability, structure stability and crust formation, in soils located at Ilgaz National Park and to generate their spatial distribution maps using fifteen different interpolation models in GIS medium. For this aim, total 151 soil samples were collected from surface (0-20 cm) soil depth. According to analysis results, it was determined that most part of the investigated soils has high erodibility value. In addition, correlation analysis was performed between erodibility factors and some soil physical and chemical properties. According to analysis results, it was found that a significantly positive relationship was found between AS and EC (0.460**) and OM (0.603**) at the 1% importance level whereas, a negative relationship was found between BD (-0.544**) at the 1% importance level. A positive relationship was also found between SSI values and EC (0.418**) and OM (0.565**) at a 1% significance level, and a negative relationship was found at a 1% significance level with BD (-0.542**). Moreover, a positive relationship was found between CF and EC (0.523**), OM (0.894**) and sand (0.345**) at a 1% importance level, and a negative relationship was found at a 1% importance level with clay (-0.376**) and BD (-0.811**).

Keywords

• aggregate stability
• structure stability
• crust formation
• gis
• ilgaz national park.