Open Access Research Paper Views (310) Download (9) Vegetation and land cover change in the National park of EL Kala: Application of NDVI differencing and classification analysis Mouna Khaznadar, Mohammed Fenni J. Bio. Env. Sci.7( 1), 231-244, July 2015. Key: Change detectionLand coverNational Park of El KalaNDVI DifferencingVegetation Details