نتایج جستجو برای: arid rangelands

تعداد نتایج: 20677  

Journal: :Geoderma 2023

The study and mapping of evidences soil piping using non-destructive techniques is a key issue in quantitative geomorphology. This paper attempts to combine Aerial systems (Unmanned Vehicles (UAV)), physical chemical attributes, near-surface geophysical survey tools (ground penetrating radar electrical resistivity tomography) provide comprehensive understanding geometric features arid semi-arid...

Mansour Mesdaghi, Mohammad Jankju Tahereh Sadeghi Shahrakht

In arid and semi-arid ecosystems, shrubs may act as fertility islands but theireffect may vary depending on their morphology and ecological impacts. This research wasaimed to study effect of three shrubs Scariola orientalis, Astragalus heratensis, and Rosapersica on soil properties and on the microclimate conditions (temperature, luminance, andsoil moisture) of their understory in the steppe ra...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2017

2015
John N Wairore Stephen M Mureithi Oliver V Wasonga Gert Nyberg

The adoption and adaptation of enclosures in the arid and semi-arid rangelands of sub-Saharan Africa is driven and sustained by a combination of factors. However, reviews indicate that these factors cannot be generalized, as they tend to be case specific. A study was therefore conducted to explore the history and reasons for enclosure establishment in Chepareria, a formerly degraded communal ra...

Journal: :Environmental monitoring and assessment 2007
Kenneth W Tate Donald L Lancaster David F Lile

Native trout species, such as the redband trout (Oncorhynchus mykiss), occupy thermally harsh stream habitats in hot, arid rangeland basins of the western United States. Declines in the distribution and abundance of these species has generated interest in understanding how these cold water species survive in these systems, as well as in identifying opportunities to restore these species to thei...

2003
J. Hill

During the 20th century, purely climate climatic factors were rarely responsible for desertification in the Mediterranean region, because droughts are relatively short-lived. Present land degradation in Northern Mediterranean countries is partially due to dramatic land use changes that occurred during the second half of this century and which in many cases lead to an unstable state of ecosystem...

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