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Dryland farming caused a large dust storm in parts of Eastern Washington on October 4, 2009. Courtesy: NASA/GSFC, MODIS Rapid Response [1]. Dryland farming has evolved as a set of techniques and management practices to adapt to limited availability of water, as in the Western US and other regions affected by climate change for crops such as tomato and maize.
The greatest issue in drylands, is land degradation which poses a huge danger to the world's capacity to end hunger. [7] Drylands occupy around 2 million km² or respectively 90%, 75%, and 67% of Kenya, [8] Tanzania, [9] and Ethiopia respectively. More than 60 million people, or 40% of these countries’ population, live in drylands.
Desertification is a gradual process of increased soil aridity.Desertification has been defined in the text of the United Nations Convention to Combat Desertification (UNCCD) as "land degradation in arid, semi-arid and dry sub-humid regions resulting from various factors, including climatic variations and human activities."
Climate change because it can "exacerbate land degradation, particularly in low-lying coastal areas, river deltas, drylands and in permafrost areas" [8] Soil erosion in a wheat field near Pullman, US. High population density is not always related to land degradation. Rather, it is the practices of the human population that can cause a landscape ...
Satellite image of the Big Island of Hawaii, the largest island in the United States. Scale depiction of the 5 largest islands in the US, with some other significant islands. This is a list of islands of the United States, as ordered by area. It includes most islands with an area greater than 20 square miles (approximately 52 km 2
Drylands are ecoregions marked by aridity and low or unpredictable precipitation. Dry land is a figure of speech describing the parts of earth that are not ocean. Dryland, drylands, dry land, or dry lands may also refer to: Dryland farming "Dry Land", 1975 song; Drylands (novel), 1999 book by Thea Astley; Dryland (club) The Dry Land, 2010 film
The western side of the United States is 53% rangeland. [18] Around 399 million acres (1,610,000 km 2 ) of rangeland are privately owned. The Bureau of Land Management manages about 167 million acres (676,000 km 2 ) of publicly owned rangeland, with the United States Forest Service managing approximately 95 million acres (380,000 km 2 ) more.