1. For example, land degradation has been indicated as an important contributing factor to rural-urban Deforestation has even been caused by extensive war—throughout history fire has often been used to deprive the enemy of necessary resources. Byron Cox went on to explain that contrary to any perceived misinterpretation, combating desertification has nothing to with fighting against natural deserts such as the Namib or Namib Sand Sea, the official name of the desert from which Namibia derived its name. Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. _____ 6. What is desertification? Understand the causes of desertification in the Sahel Explain the impact of desertification in the Sahel. China population is fed by only 7% of the country. "Desertification is a fancy word for land that is turning to desert," begins Allan Savory in this quietly powerful talk. b. We can all learn from the rational behavior of others. Land degradation causes a decline in land productivity and is therefore likely to lead to increased levels of poverty. Explain the causative factors that lead to desertification. Desertification is a big global problem, which will become even worse due to the effects of global warming. 6. (NOTE: Statements in this talk have been challenged by scientists working in this field. Desertification goes hand in 3. This kind of research is an important way to build resilience against climate change, and make land in the Sahel green and productive. The Aral Sea is a victim to such adversity due to malpractices and power hungry nature of humans. Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. When livestock eat plants down to the roots, the plants grow short, unsustainable roots and eventually, the plants will stop growing altogether. Desertification, the process by which natural or human causes reduce the biological productivity of drylands. Desertification threatens to leave much of north ern China uninhabitable by degrading soil content, greatly increasing rates of erosion, limiting natural vegetation, and almost entirely eliminating the possibility of agricultural production in affected areas. In cooperation with the CNRD and ITT of the TH Köln. The effect of desertification in the sahel are very bad because it makes the farmers produce less yield of food to the people in the community, the people and animals dies off because of the lack of food. Desertification is defined by the United Nations as ‘land degradation in arid, semi-arid and sub-humid areas resulting from various factors including climatic variations and human activities’. The sand is deposited at the river beds. Desertification is the persistent degradation of dryland ecosystems by variations in climate and human activities. Desertification is a global phenomenon that refers to a decline in biological productivity due to multiple human-induced or natural causes. Protection of vegetative cover: Protecting soil from wind and water erosion helps to prevent the loss of ecosystem services during droughts. In areas of low precipitation, like Sub-Saharan Africa, long droughts that turn arid land to unproductive, barren soil are a frequent cause of desertification. You may use labelled diagrams or sketch maps in your answer. 1. Desertification, an extreme form of land degradation, is a global phenomenon that is influenced by and has an impact on climate change and biodiversity loss. Desertification is process whereby land or soil that was once fertile becomes a desert. Desertification process. Similar global climate fluctuations may explain the drought, famine, and desertification of parts of the Sahel and the great famines of Ethiopia and Sudan in the 1970s, 1980s, and mid-2000s. Explain what desertification is, what factors create it, and decide if it was a contributing cause of the Dust Bowl. Desertification In The Sahel EXCERPT What is the Sahel? It is removal, decrease or deterioration of forest cover of an area. Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. It is taking place all over the world. The biggest threat is the extremity of desertification that is the complete loss of land productivity imposing constraints on temperature and precipitation which are … Adel ben Youssef, an expert on environment and climate change, blamed it on the practice of monoculture, overgrazing and clearing of steppes for the extension of cereal crops. ADVERTISEMENTS: 2. It transforms the habitable regions into deserts. Desertification and land degradation affect 75 per cent of the country’s 13 million ha farmland, noted the general directorate for forestry at the Ministry of Agriculture. Is deforestation to blame for the areas around the world experiencing large-scale droughts? The authors believe that anthropogenic causes of desertification are paramount, as the figure below illustrates. Desertification - causes and prevention strategies. Include an example of an event that can cause desertification and describe the changes that occur as desertification takes place. Is desertification a natural process? 5. Desertification has become increasingly politicized and there is a need to present and explain the facts from a global perspective. In general, in salt affected soils ; Moderate desertification is a 10-25% drop in productivity, severe desertification causes a 25-50% drop while very severe desertification results in more than 50% drop in productivity and usually creates huge gullies and sand dunes. Over the last 30 years it has become of particular concern to governments, scientists and rural populations. Desertification is defined by the UN Convention to Combat Desertification (CCD) 1995 as land degradation in arid, semi-arid, and dry-sub-humid areas resulting from various factors including climate variation and human activities. Desertification occurs when the tree and It is caused by a variety of factors, such as climate change and human activities. Explain the causes & effects of desertification, then examine possible solutions to combat the problem. What is desertification explain? It is occurring to varying degrees in vast regions of the world where atmospheric humidity is erratic due to rainfall that is seasonal in nature. Desertification- Effects & Remedies: Desertification is a process whereby the productive potential of arid or semi-arid lands falls by ten percent or more. Answer: soil erosion will and can lead to desertification. Desertification is the process whereby land in semi-arid regions become desert, the grasslands becomes semi-desert and so on. Home to a third of the human population in 2000, drylands occupy nearly half of Earth’s land area. For the people living in drylands, deforestation means hunger, thirst and fuel shortages. With 80% of domestic energy needs in the country fueled by firewood, Burkina Faso’s deforestation rate is alarmingly high, clocking in at 17.5% between 1992-2002. Explain the causes of desertification in a region you have studied. The "World Map of Desertification" (1:25,000,000) which was developed for the United Nations Conference on Desertification (FAO, 1977) is an example. Deforestation is particularly severe in the country’s arid north, which receives little rainfall and is menaced by desertification. Desertification (enlargement of deserts through human activities) can be associated with this degradation. Drought conditions make it unsuitable for plants and vegetation cover to survive. Desertification is the process whereby land in semi-arid regions become desert, the grasslands becomes semi-desert and so on. But what many people don't know is how big of a role the meat industry plays. Biophysical feedbacks increase the length of connected pathways, explaining the persistence of desertified landscapes around th e globe. It usually involves the removal of nutrient-rich topsoil, sandy particles with poor water-retaining (holding) ability. Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife. Mining. Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid. It is occurring to varying degrees in vast regions of the world where atmospheric humidity is erratic due to rainfall that is seasonal in nature. 5.3.U3 Commercial, industrialized food production systems generally tend to reduce soil fertility more than small-scale subsistence farming methods. Causes of sandy desertification in north China: Natural causes – aeolian sand dune encroachment – explain just 5.5% of desertification processes. This process is a result of the growing imbalance between population, resources, environment, and development. Desertification. Is deforestation to blame for the areas around the world experiencing large-scale droughts? Drylands comprise 41% of the earth’s land area and are home to roughly 2 billion people, or 34% of the earth’s population. ADVERTISEMENTS: 6. Desertification: an animation With thanks to Staffordshire County Council 8. Explain two ways that over grazing is a cause of desertification too many cattle or sheep eating plants faster than they are able to re grow. Desertification Explained Desertification is the degradation of land in already dry parts of the globe that results from various factors, including natural climate changes as well as human activity. b. Give specific examples. Land and water management: Sustainable land use can fix issues such as overgrazing, overexploitation of plants, trampling of soils and irrigation practices that cause and worsen desertification. Desertification is occurring in the Sahel region because farmers are using the slash and burn method to clear land for crops. Desertification, inarguably, is one of the most challenging environmental problems to overcome. Explain how water pollution and the unequal distribution of water impacts irrigation, trade, industry, and drinking water. Define desertification. The Sahel is the semi-arid transition region between the Sahara desert to the north and wetter…
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