Investigation of Land Use Changes and effects on erosion system of Simineroud Basian in boukan /Delnya.Palizban

The present study was conducted to investigate the land use change and its effect on erosion using GIS and RS. For the research of images, ASTER 2000 and 2017, TERRA was used. The land use map of the basin was prepared using both object-oriented and pixel-based methods. In both methods, the same educational data was used for classification; then, the accuracy assessment methods including Overall accuracy and Kappa coefficient of classification reached were extracted and it was determined that the result And it was found that the result of the object-oriented classification is better than the base pixel method of about 2%. To assess the accuracy of the results in both methods, educational data was used; then the most important methods for evaluating the accuracy including precision and coefficient Kappa classification was extracted. The erosion zoning map was carried out using land use maps and the factors including slope, lithology, distance from the road, distance from the waterway, rainfall and soil using Critical weighing method and WLC method. The results showed that in the map of the user's experience, the largest area in 2000 was the use of rangelands, which in the year 2017 significantly decreased and became arable land. According to the erosion zoning map of 2000, 8/79 and 28/28 percent respectively, and with 2017 erosion zonation, 11.04 and 34.08 percent of the city area are located in two high risk and high risk categories. The reason for increasing the area of high-risk and high-risk erosion classes in the studied basin can be the conversion of lands with rangeland cover to arable land, the increase of residential areas along the river's margin and the non-observance of river boundaries, increasing communication lines and interference Man in the environment.