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Desertification is the process by which a piece of land becomes a desert, as the word desert implies. [3] The loss or destruction of the biological potential of the land is referred to as desertification. [4] It reduces or eliminates the potential for plant and animal production on the land and is a component of the widespread ecosystem ...
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."
On the occasion of the fifteenth anniversary of the launch of the program, a report was commissioned by the United Nations Convention to Combat Desertification (UNCCD) and published on September 7, 2020. [23] It was reported that the Great Green Wall had only covered 4% of the planned area, with only 4 million hectares (9.8 million acres) planted.
Desertification can be viewed as a process in which the productivity of arid or semi-arid land decreases by 10% or more. [41] Mild desertification signifies a 10 to 25% reduction in productivity, while serious desertification indicates a 25 to 50% decline, and severe desertification denotes a productivity drop exceeding 50%.
Desertification is one of the issues of environmental concern in Nigeria, particularly the northern part of the country. According to UNEP [4] in 1993, Northern Nigeria has one of the highest rates of deforestation in the world at about 3.5%, caused by land degradation, increase in agricultural intensity, over-grazing of livestock, and demand for fuel by cutting down trees.
Desertification is defined as the process of fertile land becoming desert, and is characterized by loss of vegetation cover, increase of sand area, and drying-out of wetland areas. [7] At least 90% of Mongolia's pastureland has experienced some level of desertification. [ 3 ]
The United Nations Convention to Combat Desertification in Those Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa (UNCCD) is a Convention 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.
Agricultural lands in Yemen are subject to various degrees of degradation and decline of soil productivity. Desertification largely threatens the natural resource-base. [28] The UNDP report on climate change in Yemen, desertification is a major environmental issue intensified by climate change and human activities.