Effects of urbanization on river morphology of the Talar River,Mazandarn Province,Iran |
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| Authors: | Saleh Yousefi Hamid Reza Moradi Saskia Keesstra Hamid Reza Pourghasemi Oldrich Navratil Janet Hooke |
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| Institution: | 1. Faculty of Natural Resources, Department of Watershed Management Engineering, Tarbiat Modares University, Noor, Iran;2. Soil Physics and Land Management Group, Wageningen University, Wageningen, The Netherlands;3. Department of Natural Resource and Environmental Engineering, College of Agriculture, Shiraz University, Shiraz, Iran;4. Department of Geography, Université Lumiere Lyon 2, Lyon, France;5. Department of Geography, University of Liverpool, Liverpool, UK |
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| Abstract: | In the present study, we investigate the effects of urbanization growth on river morphology in the downstream part of Talar River, east of Mazandaran Province, Iran. Morphological and morphometric parameters in 10 equal sub-reaches were defined along a 11.5 km reach of the Talar River after land cover maps were produced for 1955, 1968, 1994, 2005 and 2013. Land cover types changed extremely during the study period. Residential lands were found to have increased in area by about 1631%, while forest land and riparian vegetation decreased in by approximately 99.9 and 96.2%, respectively. The results of morphometric and morphological factors showed that average channel width (W) for all 11.5 km of the study river decreased by 84% during the study period, while the flow length increased by about 2.14%. |
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| Keywords: | River morphology river channel change land cover GIS |
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