write an article in 150-200 words on ‘The land degradation’
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If any of us still has the slightest doubt that we are facing an ecological crisis on an unprecedented scale, then a new report on land degradation, released this week by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), provides yet another piece of evidence.
Land degradation can take many forms, but always entails a serious disruption of a healthy balance between five key ecosystem functions. These are: food production; fibre provision; microclimate regulation; water retention; and carbon storage.
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.
At its worst, land degradation can result in the desertification or abandonment of land (or both). Protracted drought and loss of fertile land may have been contributing factors in the wars in Sudan and Syria.
According to the new report, 43% of world populations live in regions affected by land degradation. By 2050, the report estimates, 4 billion people will be living in drylands. These are defined by the United Nations as land with an “aridity ratio” of less than 0.65, meaning that the amount of water lost far outweighs the amount received in precipitation.
Such areas are highly vulnerable to food and water insecurity, especially in sub-Saharan Africa and the Middle East
Land degradation can take many forms, but always entails a serious disruption of a healthy balance between five key ecosystem functions. These are: food production; fibre provision; microclimate regulation; water retention; and carbon storage.
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.
At its worst, land degradation can result in the desertification or abandonment of land (or both). Protracted drought and loss of fertile land may have been contributing factors in the wars in Sudan and Syria.
According to the new report, 43% of world populations live in regions affected by land degradation. By 2050, the report estimates, 4 billion people will be living in drylands. These are defined by the United Nations as land with an “aridity ratio” of less than 0.65, meaning that the amount of water lost far outweighs the amount received in precipitation.
Such areas are highly vulnerable to food and water insecurity, especially in sub-Saharan Africa and the Middle East
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