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Cranfield University (2000)

Remote sensing techniques for environmental monitoring of the semiarid zone of Jordan

Al-Bakri, J.T

Titre : Remote sensing techniques for environmental monitoring of the semiarid zone of Jordan

Auteur : Al-Bakri, J.T

Université de soutenance : Cranfield University

Grade : Doctor of Philosophy (PhD) 2000

Résumé
In this thesis remote sensing techniques combined with ground data were used to monitor the land use/land cover changes, vegetation and soils in the Badia transition zone of Jordan (100-200 mm annual rainfall). As part of the environmental monitoring component of the Jordan Arid Zone Productivity Project (JAZPP), the research aimed to adapt and apply remote sensing techniques to detect possible future changes from JAZPP. In addition, it aimed to investigate remotely sensed indices for future environmental monitoring in the region.Recent land use changes in four selected sites within the region were quantified. Aerial photographs were interpreted for different years from 1953 to 1992, checked in the field and analysed for land use changes using the SPANS GIS software. Increased agricultural activity, abandoned fields, land fragmentation and urban development were reflected in the land use maps through the 39-year period with the appearance of irrigated farms after 1978. The aspects of land use change were mainly attributed to the changing socio-economic factors of the Badia transition zone, namely increased human population and an accompanying increase in livestock numbers.Short-term changes in land cover and erosion extent were quantified from direct expansion of field survey, supervised classification of Landsat TM satellite imagery and regression estimator. A significant increase of urbanised areas and eroded soils was noticed between 1992 and 1998. In addition, a significant shift occurred between cultivated and uncultivated areas in both sites. Spectral similarity of classes, mixed pixels and the classification scheme all contribute to variations in the achieved mapping accuracy.

Accès au document : Proquest Dissertations & Theses

Page publiée le 6 février 2015, mise à jour le 18 octobre 2018