Land use evulation by using soil fertility-based model and geostatistic in GIS (Global information system) environment

This study was carried out in the campus of Isparta University of Applied Sciences on the east of the Isparta-Burdur highway and in the area between the university settlements and Isparta Mensucat factory. 785 decares of land of 1500 decares of land is used as farm land and remaining part is planned as university development area. In order to determine the soil productivity index values, a total of 112 samples were collected 56 soil samples from surface (0-20 cm) and 56 soil samples from the sub-surface (20-40 cm), 150x150 m grid systems with two dephts and nitrogen, phosporus, potassium, calcium, sodium, magnesium, zinc, iron, manganese, copper, lime, EC, pH, organic matter and texture analyzes were performed. The proportional values of these fifteen parameters are used to calculate the TVI values of all sampling points. Then, by using interpolation methods and Geographic Information System (GIS) techniques, spatial distributions of all parameters were determined and mapping procedures were performed. According to the data obtained as a result of all studies, while the surface (0-20 cm) area of the study area was moderately efficient (S2), 98.20 % of the sub-surface (20-40 cm) area was moderately efficient (S2) and 1.80 % of them were well-efficient (S1).