The potential of remote sensing for monitoring land cover changes and effects on physical geography in the area of Kayisdagi Mountain and its surroundings (Istanbul)

Abstract

The effect of land cover change, from natural to anthropogenic, on physical geography conditions has been studied in Kayisdagi Mountain. Land degradation is the most important environmental issue involved in this study. Most forms of land degradation are natural processes accelerated by human activity. Land degradation is a human induced or natural process that negatively affects the ability of land to function effectively within an ecosystem. Environmental degradation from human pressure and land use has become a major problem in the study area because of high population growth, urbanization rate, and the associated rapid depletion of natural resources. When studying the cost of land degradation, it is not possible to ignore the role of urbanization. In particular, a major cause of deforestation is conversion to urban land. The paper reviews the principles of current remote sensing techniques considered particularly suitable for monitoring Kayisdagi Mountain and its surrounding land cover changes and their effects on physical geography conditions. In addition, this paper addresses the problem of how spatially explicit information about degradation processes in the study area rangelands can be derived from different time series of satellite data. The monitoring approach comprises the time period between 1990 and 2005. Satellite remote sensing techniques have proven to be cost effective in widespread land cover changes. Physical geography and particularly natural geomorphologic processes like erosion, mass movement, physical weathering, and chemical weathering features etc. have faced significant unnatural variation.

Impact des activités anthropiques sur la dynamique de la végétation de la réserve partielle de faune de Pama et de ses périphéries (sud-est du Burkina Faso) dans un contexte de variabilité climatique

“…A l'inverse, les jachères (FALL) et les aires de pâturage (GZLD) ont les unités de végétation les plus dégradés, ce qui se reconnaît par un taux d'embuissonnement élevé, un grand diamètre moyen des arbres; un taux élevé de recouvrement en herbacées et une grande (Kabba & Li, 2011). Étant donné la complexité du paysage sahélien, un tel résultat s'explique par la qualité des images et le choix des classes thématiques et des zones d'entraînement (Geymen & Baz, 2008, Maârouhi et al, 2011. En effet, les images sont choisies de telle sorte à éviter la confusion entre les cultures et la végétation naturelle d'une part et d'autre part entre la végétation et les feux de brousse qui réfléchissent dans le proche infra rouge et provoquent des confusion de classes (Koné et al 2007;Diallo et al, 2011;Mama et al, 2013).…”

“…Les changements d'occupation des terres sont souvent connus mais c'est leur ampleur qui diffère selon le type de pression et les conditions écologiques et environnementales. A cet effet, la télédétection permet d'effectuer l'étude de la dynamique de la dégradation et des causes sous-jacentes à ce phénomène (Schmid, 2003;Geymen & Baz, 2008;Paré et al, 2010). La détection du changement des unités d'occupation du sol est possible grâce à la technique de postclassification et l'établissement des matrices de Soulama et al J. Appl.…”

Remote sensing of 10 years changes in the vegetation cover of the northwestern coastal land of Red Sea, Saudi Arabia

“…The common practice of remote sensing data analyses are anomaly detection, quantification and the mapping of LU/LC patterns and changes due to its availability and high degree of accuracy ( Lu et al, 2004 , Chen et al, 2005 , Geymen and Baz, 2008 , Abd El-Kawy et al, 2011 ). Numerous techniques have been accomplished for change detection which have been formulated, applied and estimated.…”

The Space-Borne SBAS-DInSAR Technique as a Supporting Tool for Sustainable Urban Policies: The Case of Istanbul Megacity, Turkey

“…In addition to physical, economic and sociological aspects, urban management needs also to include the environmental dimension [8]. Indeed, several environmental issues typically result from heavy urbanization processes, e.g., pressure on forests and water resources [9,10], land-use changes and expansion over unstable slopes and areas prone to ground settlements [11,12].…”