Multi- Temporal Satellite Imageries for VegetationCover Changes Studies (A case study in...

Multi- Temporal Satellite Imageries for VegetationCover Changes Studies (A case study in Sahand Area)

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Mohsen Ahadnejad Reveshty
Academic staff member
Zanjan University,
Iran
Email: [email protected]

Vegetation cover changes are directly related to climatic variation in every part of the world. Due to significant role of vegetation cover in many aspects of man’s life such as food production, soil conservation and flood control every aspect of vegetation cover changes has been studied during this study. Present study focuses on vegetation cover changes in Sahand area as one of the most significant rangelands in the country between 1976- 2002. Landsat TM and Landsat MSS imageries of date along with climatologically data have been employed for this study. Consequently vegetation cover changes have been evaluated using different indices as NDVI, NRVI, CTVI, LAI. The results of the study revealed an increasing change of vegetation cover in the area
KEY WORDS:Vegetation cover changes; climatologic variations; multi-temporal satellite imageries; Geographic Information System