The Environmental Scrutiny of Land Use Changes and its Effects on Some Soil Physical and Nutrition Characteristics in Iran

One of the most important issues that cause the threat of renewable natural resources and ultimately humans will be destroyed pasture vegetation and the waste of fertile. On the other hand population growth and the increasing need of food in recent century, have led the farmers in different countries around the world including Iran, benefiting from the pastures and forests for the cultivation. At present soil degradation is a serious issue and it has economic and social harmful effects in local, national and global levels. Today, the researcher is unanimous that change is one of main factor to degradation and change in soil characteristic. Considering issue, study land use change and affect these changes on some soil degradation index done in Friedan region of Esfahan province in about 2000 ha. Results of this research presented to increased bulk density, decreasing porosity, organic matter, going out macro nutrients follow of degradation in natural rangeland and converting them to abandon rain fed. Finally, use of these land according to capacity of use in right program and management can decrease of intensify degradation and loss of resources.