Evaluation of Land Use Change Trends Using Satellite Landsat Satellite Images ETM+ and OLI Sensores (Case Study: Behbahan County)

In the present study, Landsat satellite images of sensors ETM + in 2000 and OLI of 2014 were used to prepare the land use change map in Behbahan city. After classification of images, the final land use map was prepared in six classes of residential areas, agricultural lands, water, forest, rangeland and bare lands. Then changes were made using CROSSTAB. The results showed that an increase in area agricultural and residential and reduction of area in pasture land, bare lands and forests occurred. Agricultural land use had the highest area increase with 8036.01 hectares and rangeland use had the highest area decrease with 4560.39 hectares of these lands destroyed. The degradation of rangelands for conversion to other uses was from the highest to the lowest, including: 6233 hectares of pasture changes to agriculture, 1199 hectares of pasture changes to bare lands, 1146 hectares of pasture changes to forest and 559 hectares of rangeland changes to residential areas. According to the reduced area of rangeland can be paraphrased as the increase in rural population and the subsequent increase in demand for food grain self-sufficiency plan, forcing villagers to many pasture lands into agricultural land change. On the other, the increasing number of livestock in the period under review, which changes the composition of the vegetation, animals Overgrazing is another reason why it is degraded Rangeland.Finally, it can be said that land use changes have unpleasant consequences on urban environment such as reduced vegetation cover and increased environmental temperature.