The relationship between morphometric parameters and land use in Sardab and Bidsobhan watershed- Fars Province
Subject Areas : Climatology
Saeid Negahban
1
(Assistant Prof., Dep. of Geography Geomorphology, Faculty of Economics, Management & Social Sciences, University of Shiraz, Iran)
Marzieh Makram
2
(Assistant Prof. of Geomorphology Rangeland & Watershed-Dep. of Natural Resources Academy, University of Shiraz, Iran)
Keywords: Slope, land use, digital elevation model (DEM), Landforms, topography Position Indicator (TPI),
Abstract :
Watershed morphometric features a huge impact on its land use, so that in addition to being somewhat rugged topography and steep river basin are defining characteristics of microclimate, based on land use type, vegetation and soil are also effective. This research is aimed to investigate the relationship between land use features and morphometric parameters in Sardab and Bidsobhan watershed in the northeastern of Fars province's. Morphometric parameters such as slope, elevation, landform and vegetation index NDVI were examined in the study area. Landsat 8 satellite imagery, Landsat ETM (2015) was used to extract the vegetation index NDVI. As well as to determine the Elevation, landforms and slope of the digital elevation model (DEM) was used ASTER. After mapping the slope and elevation and landforms of the area using topographic position indicator (TPI), Each of the morphometric parameters and units relationship between land use in the study. The results showed that most of the working pile and seeding, the medium-term grazing and agriculture in Class 1, Class 10 and 9 respectively in the protected area and garden is located. While the lowest seed landforms units and protected area in Class 6, Class 2 Units pile of work and medium-term grazing and agricultural and garden plants, respectively located in Grades 4 and 9. The maximum amount of dip in units Protection Zone (45/24) and the lowest in a pile of work and seeding (375/0) . The results showed that the maximum amount of DEM per enclosure medium term (3853 m) and the lowest in a pile of work and seeding (2539 m). The maximum and minimum NDVI values at a pile of work of the unit that represents the vegetation in the study area.
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