Deserts Deserts As an area of research and development, arid-zone agriculture, or desert agriculture, includes studies of how to increase the agricultural productivity of lands dominated by lack of freshwater, an abundance of heat and sunlight, and usually one or more of extreme winter cold, short rainy season, saline soil or water, strong dry winds, poor soil structure, over-grazing, limited technological development, poverty, political instability. ...more on Wikipedia about "Arid-zone agriculture"
In geography, a desert is a landscape form or region that receives little precipitation - less than 250 mm (10 in) per year. Deserts have a reputation for supporting very little life. Compared to wetter regions this may be true, although upon closer examination, deserts often harbor a wealth of life that usually remains hidden (especially during the daylight) to preserve moisture. Approximately one-third of Earth's land surface is desert. (See a map of the world's non-polar deserts, http://pubs.usgs.gov/gip/deserts/what/world.html.) ...more on Wikipedia about "Desert"
Desert rose is the colloquial name given to rosette formations of the minerals gypsum and barite with sand inclusions. ...more on Wikipedia about "Desert rose"
Eolian (or aeolian) processes pertain to the activity of the winds. Winds may erode, transport, and deposit materials, and are effective agents in regions with sparse vegetation and a large supply of unconsolidated sediments. Although water is much more powerful than wind, eolian processes are important in arid environments such as deserts. ...more on Wikipedia about "Eolian"
Shrub-steppe is low rainfall natural grassland ecoregion extending from southeastern Washington and eastern Oregon, through Idaho, Nevada, and Utah, and into western Wyoming and Colorado. Growth is primarily low lying shrubs, such as sagebrush. Rainfall is less than seven inches per year. ...more on Wikipedia about "Shrub-steppe"
The United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa is an agreement to combat desertification and mitigate the effects of drought through national action programs that incorporate long-term strategies supported by international cooperation and partnership arrangements. ...more on Wikipedia about "United Nations Convention to Combat Desertification"
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