Change detection of land during time series is very important for making optimal decisions about land management through understanding the interactions between human and natural phenomena. In this study, changes in land-use of Mashhad County were investigated in relation to topographic conditions using Landsat images of 1987, 2001 and 2014. Land-use map was created using visual interpretation method with six classes including bare lands, dry lands, forest, irrigated farming, range and urban. Finally, changes of land-use in relation to topographic components (elevation, slope, aspect) were studied. Results showed that area of urban, forest and bare land classes increased and area of dry land, irrigated farming and range classes decreased during study period. Greatest land-use change was from irrigated farming to dry farming, which was about 37702.75 Ha. Mashhad urban area has been growth about 16754 Ha in this period, which most is happened in locations with 800-1600m of elevation, 8-12% slope and located in northern and eastern aspects. These results can be used as a useful mean for managing the regions disposed to land-use change and provide a suitable view for planners to manage the land use and future development plans.
Keywords: Land-use change, Land use, Topographic Parameters, Geographic Information System, Mashhad
۲,۴- M.Sc. , Department of Fisheries and Environmental Sciences, University of Tehran, Tehran, Iran.
۳- M.Sc. , Department of Environmental Science, Faculty of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Journal of Environmental Science and Technology (JEST), Volume 18, Issue 4.