Detection of lakes changes trends with using geography information system (GIS) and Remote sensing (Rs).case study: tectonically Zarivar Lake

Changes Detection with using remote sensing data in recent years has been the attention of many researchers. The aim of this study was to physical changes Detection of lake ¡over a period of 57 year using satellite images and topographical the causes of the change. After processing the satellite image were analyzed changes.it was that from1335 to 1392 agriculture lands decline significant and forest lands increased indicant. Wetlands by increasing the extant cause are declining extent of the Lake. in the other words¡the change detection in 3 time period: 1335 and (1381) 2002¡(1392) 2013 are representative decrease lake from 1297 hectare in year 1335 to 882 hectare in year (1392) 2013 .the following was implicated to analysis important factors including influence decline rain fall using irregular in water sources¡ drilling legal and illegal wells¡ increase surface evaporation and to prevent further reduce the extent of like and water ways offer .