منابع مشابه
Application of Ecological Theory to Management of Arid Drylands: An Example from China
Rangeland ecosystems shift across dynamic thresholds between differentecological states in response to natural or human-induced factors. These differentecological states are the result of interactions among climate, soils, grazing history,and management practices. The notion of a single ‘‘pristine’’ final state is onlyconceptual in nature, and because of this, dynamic thresholds and the effects...
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The paper begins with the question “Do mountains exist?” It shows that providing an answer to this question is surprisingly difficult, and that the answer which one gives depends on the context in which the question is posed. Mountains clearly exist as real correlates of everyday human thought and action, and they form the archetype for geographic objects. Yet individual mountains lack many of ...
متن کاملRogen moraine: an example of glacial reshaping of pre-existing landforms
Rogen moraine is widely distributed in the core areas of the former Scandinavian and Laurentide ice sheets. It is generally agreed upon that these gently arched, ice-flow transverse ridges can be used in reconstructions of paleo-ice-flow patterns and that they indicate a melted-bed or poly-thermal basal ice regime. However, the processes of ridge generation have been contentious. This study pro...
متن کاملapplication of ecological theory to management of arid drylands: an example from china
rangeland ecosystems shift across dynamic thresholds between differentecological states in response to natural or human-induced factors. these differentecological states are the result of interactions among climate, soils, grazing history,and management practices. the notion of a single ‘‘pristine’’ final state is onlyconceptual in nature, and because of this, dynamic thresholds and the effects...
متن کاملThe Entrepreneurial Spirit of Rural Women: An Example from Iran
This study aimed to investigate the personality characteristics related to entrepreneurial spirit of rural women. The statistical population of the study included rural women in the central district of Nimrooz County in Sistan and Baluchistan Province (N=406). Krejcie and Morgan Table was used to determine the sample size. To this end, 186 participants were selected through stratified random sa...
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ژورنال
عنوان ژورنال: Geomorphology RAS
سال: 2015
ISSN: 0435-4281
DOI: 10.15356/0435-4281-2013-3-