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What are the primary causes of land degradation? ... Moderately damaged land takes more resources than an average farmer has to restore. Changes in soil conservation practices can slow land degradation, but not restore fertility often. National programs will be needed for such lands, requiring major structural change (e...
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www.globalchange.umich.edu/globalchange2/current/lectur...
www.globalchange.umich.edu/globalchange2/current/lectures/land_deg/land_deg.html
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Effects of land degradation on productivity ... Views on land degradation ... Land degradation will remain an important global issue for the 21st century because of its adverse impact on agronomic productivity, the environment, and its effect on food security and the quality of life.
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soils.usda.gov/use/worldsoils/papers/land-degradation-o...
soils.usda.gov/use/worldsoils/papers/land-degradation-overview.html
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The Working Group on Land Degradation and Desertification of the International Union of Soil Sciences ... Land Degradation News and Views ... Learn more about land degradation...
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soils.usda.gov/use/worldsoils/landdeg/
soils.usda.gov/use/worldsoils/landdeg/
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Defined as a long-term decline in ecosystem function and productivity, land degradation is increasing in severity and extent in many parts of the world, with more than 20 percent of all cultivated areas, 30 percent of forests and 10 percent of grasslands undergoing degradation.
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www.fao.org/newsroom/en/news/2008/1000874/index.html
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Land degradation has affected some 1900 million hectares of land word-wide. In Africa an estimated 500 million hectares of land have been affected by soil degradation, including 65% of the region's agricultural land.
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earthwatch.unep.net/emergingissues/desertification/land...
earthwatch.unep.net/emergingissues/desertification/landdegradation.php
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Deterioration in the quality of land, its topsoil, vegetation, and/or water resources, caused usually by excessive or inappropriate exploitation ... land degradation in the news ... LAN; LAN internetwork; land; land certificate; land contract; land degradation; land development; land flip; land improvement; land lease; landbridge...
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www.businessdictionary.com/definition/land-degradation....
www.businessdictionary.com/definition/land-degradation.html
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Gaining a Farmer-Perspective on Land Degradation ... What is Land Degradation? ... Consequences of Land Degradation for Land Users...
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www.unu.edu/env/plec/l-degrade/index-toc.html
www.unu.edu/env/plec/l-degrade/index-toc.html
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Rural poverty knowledgebase ... Combating desertification,and land degradation more generally, is a war that can be lost,but must be won.Desertification is often the result of human activity and can therefore be prevented or controlled by human effort.
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www.ifad.org/events/wssd/gef/gef_ifad.htm
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