عنوان مقاله [English]
Increased population and double pressure on the ecosystem to provide food resources, has led to widespread changes in the use of natural land in the northern forests of the country to agricultural land. Therefore, this study was conducted to study the effect of land use change on the health and soil quality of sloping lands south of Gorgan. Sampling was performed in July 2020 due to severe land degradation from only two positions of shoulder and back slope and completely randomly from a depth of 0-20 cm of forest soil and adjacent cultivated land and then samples were analyzed. Properties evaluated include soil organic carbon content (OC), percentage of soil texture components and bulk density of soil, percentage of lime equivalent soil, EC, pH, the amounts of high consumption elements (NPK) and CEC were as indicators of soil quality. The results showed the highest coefficient of variation as a result of land use change was related to the two parameters of OC. Analysis of variance and mean comparison showed land use change from virgin forest to agriculture has significantly reduced soil quality in all parameters evaluated except absorbable phosphorus. Also, the study of OC as the most important indicator of soil quality showed that this parameter with an average of 6.07% in forest use and an average of 0.59% in agricultural use with a 90% decrease as a result of land use change.