Guide Humanum 3, le secret dÉpidaure: suivi de Amazone City  (French Edition)

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An example for this is the salt flats in the Rub' al Khali desert in Saudi Arabia. These salt flats are one of the most promising desert areas for seawater agriculture and could be revitalized without the use of freshwater or much energy. Farmer-managed natural regeneration FMNR is another technique that has produced successful results for desert reclamation. Since , this method to reforest degraded landscape has been applied with some success in Niger.

This simple and low-cost method has enabled farmers to regenerate some 30, square kilometers in Niger. The process involves enabling native sprouting tree growth through selective pruning of shrub shoots. The residue from pruned trees can be used to provide mulching for fields thus increasing soil water retention and reducing evaporation.

Additionally, properly spaced and pruned trees can increase crop yields. Restoring grasslands store CO 2 from the air as plant material. Grazing livestock, usually not left to wander, would eat the grass and would minimize any grass growth while grass left alone would eventually grow to cover its own growing buds, preventing them from photosynthesizing and killing the plant.

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Images, videos and audio are available under their respective licenses. Home FAQ Contact. Desertification Wikipedia open wikipedia design. Not to be confused with Decertification or Desertion. Preventing man-made overgrazing. Goats inside of a pen in Norte Chico, Chile. Overgrazing of drylands by poorly managed traditional herding is one of the primary causes of desertification.

Wildebeest in Masai Mara during the Great Migration. Overgrazing is not caused by nomadic grazers in huge populations of travel herds , [38] [39] nor by holistic planned grazing. Environment portal Ecology portal Earth sciences portal Biology portal Global warming portal. National Geographic News.

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Retrieved 20 June Retrieved The concept does not refer to the physical expansion of existing deserts but rather to the various processes that threaten all dryland ecosystems. Geophysical Research Letters. Bibcode : GeoRL.. Retrieved 21 June Archived from the original on 7 June Geist, and Eric F. Adapting to drought: farmers, famines, and desertification in West Africa. Cambridge University Press. Soil Conservation Service. United States Department of Agriculture.

Retrieved 9 April Columbia University. Retrieved 3 December ESO Picture of the Week. Retrieved 30 April Retrieved 7 November Gender in agriculture sourcebook. World Bank Publications.

Desertification - WikiVisually

E-International Relations. New African. The New York Times. Journal of Geophysical Research: Atmospheres. Atmospheric Environment. Environment International. Carbon Brief. COM — Retrieved 30 March Duke University. Archived from the original PDF on March 8, Retrieved April 13, Mediterranean desertification: a mosaic of processes and responses.

Ecological Economics.

Elsevier Science Publishers. Archived from the original PDF on 23 May Retrieved 10 March Island Press. Savory Institute. Retrieved 9 June Frontiers in Earth Science. Bibcode : FrEaS Encyclopedia Britannica. Desertification and its relationship to the environment and development: a problem that affects us all.

World Summit on Sustainable Development. What is at stake? The contribution of scientists to the debate: 91— Combating desertification with plants. Policy integration for complex environmental problems: the example of Mediterranean desertification. Ashgate Publishing. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences.


Combating Desertification with Plants. Journal of Extension.

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Food and Agriculture Organization of the United Nations. Retrieved 14 April June Xinghua News Agency. Archived from the original on 2 April January 13, Remove FREE.

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    There they focus primarily on educating the local population about the dangers of deforestation and sometimes employ them to grow seedlings, which they transfer to severely deforested areas during the rainy season. The " Green Wall of China " is a high-profile example of one method that has been finding success in this battle with desertification.. This wall is a much larger-scale version of what American farmers did in the s to stop the great Midwest dust bowl. This plan was proposed in the late s, and has become a major ecological engineering project that is not predicted to end until the year Techniques focus on two aspects: provisioning of water, and fixation and hyper-fertilizing soil.

    Fixating the soil is often done through the use of shelter belts , woodlots and windbreaks. Windbreaks are made from trees and bushes and are used to reduce soil erosion and evapotranspiration. They were widely encouraged by development agencies from the middle of the s in the Sahel area of Africa.