TY - JOUR 
AU - Nutullah Özdemir
AU - Coşkun Gülser
TI - Clay activity index as an indicator of soil erodibility
JO - Eurasian Journal of Soil Science
VL - 6
IS - 4
PB - Federation of Eurasian Soil Science Societies 
SN - 2147-4249 
UR - http://ejss.fesss.org/10.18393/304519
DO - 10.18393/304519
SP , EP - 307-311
KW  - AI value, erosion ratio, soil erodibility, structure stability index.
PY  - 2017
AB  - Activity index (AI) value characterizes the relationship between the plasticity index and clay content. In this study, AI value was investigated to determine whether it might be used as an indicator of soil structural stability or not. The AI values of 75 soil samples gave the significant negative correlations with their dispersion ratio (DR), soil erodibility factors (K) and erosion ratios (ER). Also, the AI values of the soils including clay and sandy clay loam textural class showed significant positive correlation with soil structural stability index (SSI). It seems that the AI value may be used as an indicator of soil structural stability.
ER  -