Abstract:

Remote sensing is the main technology for assessing expansion and rate of change of land cover. Knowing the different kinds of land cover changes and human activities in different parts, as a basis for a variety of planning has special importance. Accordingly this study aimed to evaluate the physical growth of the Shiraz city during the years 2009 to 2016 and forecasts until 2021 and also calculate the amount and intensity of the destruction of vegetation in the study area using satellite images. To achieve this, the data of remote sensing and geographic information system is used. Calculation of trends in physical growth, stating that the area of the city from 13160.07 hectares in 2009 reached to 17350.29 hectares in 2016, over a period of 7 years. If these conditions persist, area of the city in 2021 with 19.21 percent growth will be 20683.58 hectares. Assessment NDVI index show that the density of vegetation in the Shiraz city had a significant decreasing trend. So that the sum of very good and good vegetation cover results NDVI index, in 2009 was equal to 6128.37 hectares, while this amount has decreased to 4282.47 hectares in 2016, that this means a 43.10 percent reduction in vegetation cover in this period. The results showed that between 2009 to 2016 more than 1891 hectares of vegetation and gardens has become built lands.

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