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Drylands are therefore highly vulnerable to increases in human pressures and climatic variability, especially sub-Saharan and Central Asian drylands. Some 10 to 20% of drylands are already degraded, and ongoing desertification threatens the world’s poorest populations and the prospects of poverty reduction.Loss of biodiversity by worsening the living conditions of many species. Food insecurity due to crop failure or reduced yields. The loss of vegetation cover and therefore of food for livestock and humans. Increased risk of zoonotic diseases, such as COVID-19.In Africa and other countries largely dependant on agricultural production, desertification can reduce agricultural yields and make them much more unpredictable. It therefore affects food security of those living in affected areas.
What are some of the consequences if desertification continues?
Loss of biodiversity by worsening the living conditions of many species. Food insecurity due to crop failure or reduced yields. The loss of vegetation cover and therefore of food for livestock and humans. Increased risk of zoonotic diseases, such as COVID-19.
Why is it important to stop desertification?
In Africa and other countries largely dependant on agricultural production, desertification can reduce agricultural yields and make them much more unpredictable. It therefore affects food security of those living in affected areas.
Action Against Desertification
Images related to the topicAction Against Desertification
How will desertification affect the world?
Land degradation and desertification can affect human health through complex pathways. As land is degraded and deserts expand in some places, food production is reduced, water sources dry up and populations are pressured to move to more hospitable areas.
What will desertification lead to?
Desertification affects topsoil, groundwater reserves, surface runoff, human, animal, and plant populations. Water scarcity in drylands limits the production of wood, crops, forage, and other services that ecosystems provide to our community.
Why is desertification a problem?
Desertification is a global issue, with serious implications worldwide for biodiversity, eco-safety, poverty eradication, socio-economic stability and sustainable development. Drylands are already fragile. As they become degraded, the impact on people, livestock and environment can be devastating.
What are the effects of desertification and drought?
degradation of the vegetal covering, through to its total disappearance; dispersion of solid particles in the atmosphere – sand storms, air pollution – with a negative impact on man’s health and productive activities; reduction of farming and breeding production: malnutrition and hunger; migrations of people and wars.
How does desertification affect society?
Across the world, desertification affects the livelihoods of millions of people who rely on the benefits that dryland ecosystems can provide. In drylands, water scarcity limits the production of crops, forage, wood, and other services ecosystems provide to humans.
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Desertification facts and information – National Geographic
About 2 billion people live on the drylands that are vulnerable to desertification, which could displace an estimated 50 million people by 2030.
Explainer: Desertification and the role of climate change
“The [result is] declines in crop and livestock productivity, loss of biodiversity, increasing chances of wildfires in certain areas. Naturally, …
Desertification is greatest threat to planet, expert warns – The …
Since the early 1980s, a quarter of the planet’s land has been despoiled and 1% a year continues to be lost. The better known issues of climate …
desertification | Description, Causes, & Impacts – Encyclopedia …
Such dust storms often transport the soils, along with the nutrients they contain, over long distances. Rainfall is scarce in drylands, but when it does come it …
How does desertification affect the economy?
The impact of desertification on the socio-economic life of rural households leads to reduction in crop and animal production, as well as causing, livestock deaths and rise in the prices of foodstuffs.
How does desertification affect the atmosphere?
It is also possible that desertification may in turn affect climate change, due to the effects of land degradation reducing surface moisture. Because less water is available for the sun’s energy to evaporate, more energy is left over for warming the ground and, consequently, the lower atmosphere.
Desertification – A Visual Disaster
Images related to the topicDesertification – A Visual Disaster
What is the future of desertification?
“Population growth and increase in food demand will drive expansion and intensification of cultivated lands. If unchecked, desertification and degradation of ecosystem services in drylands will threaten future improvements in human well-being and possibly reverse gains in some regions.”
How does desertification affect sustainable development?
Desertification and Human Systems
Changes in Production Systems Desertification leads to diminished sustainability in a most basic manner: degraded lands suffer diminished capacity to meet the needs of present or future generations.
What are the consequences of land degradation?
Its impacts can be far-reaching, including loss of soil fertility, destruction of species habitat and biodiversity, soil erosion, and excessive nutrient runoff into lakes. Land degradation also has serious knock-on effects for humans, such as malnutrition, disease, forced migration, cultural damage, and even war.
How does desertification affect biodiversity?
Desertification is associated with biodiversity loss and contributes to global climate change through loss of carbon sequestration capacity and an increase in land-surface albedo. Biological diversity is involved in most services provided by dryland ecosystems and is adversely affected by desertification.
How does desertification cause drought?
Land degradation or scientifically desertification is due mainly to anthropogenic factors and accelerated by climate change and drought. Drought triggers the desertification, and also the desertification can influence the drought by reducing the water soil content (surface moisture).
What are the consequences of drought?
Drought can also cause long-term public health problems, including: Shortages of drinking water and poor quality drinking water. Impacts on air quality, sanitation and hygiene, and food and nutrition. More disease, such as West Nile Virus carried by mosquitoes breeding in stagnant water.
Are deserts important?
Deserts are vitally important to the planetary ecosystem. They cover approximately 1/3 of the dry land of our planet (3, p1). They are also amongst the most fragile and endangered biomes.
What do we mean by desertification does it bring harm to our environment Why or why not?
Desertification refers to the persistent degradation of dryland ecosystems by climatic variations and human activities. It occurs on all continents (except Antarctica) and affects the livelihoods of millions of people, including a large proportion of the poor in drylands.
How China is turning its Desert into a Forests to prevent Desertification.
Images related to the topicHow China is turning its Desert into a Forests to prevent Desertification.
What are the effects of desertification in Africa?
It leads to reduction in crop yields and weakens the resilience of agricultural and pastoral systems – key livelihood pillars in Africa. Through its effect on vegetation and soils, desertification leads to changes in carbon pools and sinks and release of associated GHGs.
What are the effects of deforestation?
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.
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