Use of remote sensing and GIS in mapping the environmental sensitivity areas for desertification of Egyptian territory

Abstract

Desertification is defined in the first art of the convention to combat desertification as "land degradation in arid, semiarid and dry sub-humid areas resulting from climatic variations and human activities". Its consequence include a set of important processes which are active in arid and semi arid environment, where water is the main limiting eED

Assessment and mapping the sensitive areas to desertification in an insular Sahelian mountain region Case study of the Ribeira Seca Watershed, Santiago Island, Cabo Verde

“…We used this methodology and chose the multiplication of parameters because several studies in regions affected by desertification adopted the same approach, in Egypt (Ali and El Baroudy, 2008;Gad and Lotfy, 2008) in Morocco (Bouabid et al, 2010) and in Iran (Honardoust et al, 2011;Parvari et al, 2011;Sepehr et al, 2007).…”

Spatial indicators for desertification in south-east Vietnam

“…Such a framework can be adapted to include soil, climate and vegetation as the main driving factors for desertification (e.g. Gad and Lotfy, 2008;Basso et al, 2012), incorporate local land use and vegetation characteristics (e.g. Izzo et al, 2013;Zhou et al, 2015;Jiang et al, 2019) or add projections of population densities (e.g.…”

“…Desertified areas have been detected using a multi-factorial approach such as the multi-component GIS framework for desertification risk assessment (Santini et al, 2010) or the Environmentally Sensitive Areas (ESA) approach (Kosmas et al, 2006;Basso et al, 2000). Though originally designed for European Mediterranean environments, the ESA methodology has increasingly been used for classifying sensitivity to desertification in different environments ranging from Egypt (Gad and Lotfy, 2008), Iran (Parvari et al, 2011) and Central Asia (Jiang et al, 2019) to the Dominican Republic (Izzo et al, 2013) and northwest China (Zhou et al, 2015). All of these approaches combine regional modelling methods with spatially explicit information to assess the sensitivity of different areas to desertification.…”

Quantitative Assessment of Environmental Sensitivity to Desertification in Sidi Abdel-Rahman area, Northern West Coast of Egypt

“…MEDALUS model consists of four types of environmentally sensitive areas (ESA) to desertification phenomena which are, soil quality, climate quality, vegetation quality, and management quality. Many studies monitored and evaluated ESA in the Mediterranean region by MEDALUS model with accurate acceptable results (Basso et al, 2000, Collado et al, 2002, Kosmas et al, 2003, Runnstrom, 2003, Brandt, 2005, Yang et al, 2005, Jabbar and Chen, 2006, Gad and Lotfy, 2006, Sepehr et al, 2007, Ali and El Baroudy, 2008, Gad and Lotfy, 2008, Lavado et al, 2009, Bouabid et al, 2010, Gad and Shalaby, A. M. SALEH et al 2010, Honardoust et al, 2011, Mohamed, 2013, Coscarelli et al, 2016, Lahlaoiet al, 2017and Prăvălie et al, 2017. The objectives of this work are to use spatial analyses and Geographic Information System (GIS) for assessing and mapping the environmentally sensitive areas (ESAs) to desertification in Sidi Abdel-Rahman area, North West Coast of Egypt through the MEDALUS multi-factor approach based on both a general and a local knowledge of the environmental processes acting.…”