During the last two decennia ‘disability’ increasingly has been considered by various academic disciplines like sociology, literature, social sciences, geography and history as a…
Abstract
During the last two decennia ‘disability’ increasingly has been considered by various academic disciplines like sociology, literature, social sciences, geography and history as a fresh and innovative analytical category with the transformative potential of race, gender, class and sexuality. At the heart of this development is a comprehensive transformation of what is understood by ‘disability’. Traditionally, ‘disability’ was considered to be nothing more than an objective and invariable part of the human body. Nowadays ‘disability’ is primarily presented as the contingent result of the complex and manifold interactions between an individual’s body and its surrounding multilayered reality. This new meaning of ‘disability’ especially has been put forward by what has come to be known as Disability Studies.
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J. Hill, P. Hostert and A. Röder
The importance of thoroughly monitoring the state of the environment in Mediterranean ecosystems has long been recognised. With regard to the spatial extension of large areas…
Abstract
The importance of thoroughly monitoring the state of the environment in Mediterranean ecosystems has long been recognised. With regard to the spatial extension of large areas threatened by various degradation processes it becomes obvious that terrestrial observation alone is hardly able to cope with this task. Remote sensing with air‐ or spaceborne sensor systems provides a comprehensive spatial coverage, is intrinsically synoptic, and collects objective, repetitive data and is thus ideally suited for monitoring environmentally sensitive areas. The major problem associated with its use is to quantitatively interpret a measured signal that has interacted with remote objects in terms of the properties of these objects. In parallel to the advances in remote sensing geographical information systems (GIS) have emerged as a fully functional support for resource management tasks. As an example for tracing and analysing environmental change with coupled remote sensing and GIS approaches we present a case study on the island of Crete which was carried out in the framework of research programmes supported by the European Union. Although it is known that grazing in Crete dramatically increased during the last two decades, it was not well understood how grazing pressure differs spatially and in how far it altered the landscape of Crete. One of the major rangeland areas of central Crete, the Psiloritis Mountains, have been selected to serve as a test site for answering these questions. On the basis of an extended Landsat‐TM and ‐MSS data set acquired between 1977 and 1996 it has been shown that time series analysis techniques based on vegetation fractions derived from spectral unmixing can substantiate a spatio‐temporal interpretation of degradation processes. In areas under massive grazing pressure such processes can be linked to the respective driving forces by GIS‐based analyses of natural and socio‐economic boundary conditions.