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The immediate cause of desertification is the loss of most vegetation. This is driven by a number of factors, alone or in combination, such as drought, climatic shifts, tillage for agriculture, overgrazing and deforestation for fuel or construction materials.
Desertification has substantial economic consequences in Africa, particularly in places where agriculture and natural resource utilization are the predominant sources of revenue. Desertification reduces crop yields, causes food shortages, and increases poverty in impacted populations by destroying fertile land and water supplies.
In the Caribbean region, overgrazing is a threat to vegetation areas where there is livestock farming, which is an important source of livelihood and food security for many people. a combination of small scale livestock farming with small ruminants, and mixed farming is practised. However, livestock consume vegetation faster than it can be ...
The overwhelming direct cause of deforestation is agriculture. [9] Subsistence farming is responsible for 48% of deforestation; commercial agriculture is responsible for 32%; logging is responsible for 14%, and fuel wood removals make up 5%. [9] More than 80% of deforestation was attributed to agriculture in 2018. [10]
Pollutants from agriculture greatly affect water quality and can be found in lakes, rivers, wetlands, estuaries, and groundwater. Pollutants from farming include sediments, nutrients, pathogens, pesticides, metals, and salts. [1] Animal agriculture has an outsized impact on pollutants that enter the environment.
A satellite image of the Sahara, the world's largest hot desert and third largest desert after Antarctica and the Arctic. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life.
Causes include: Land clearance, such as clearcutting, overlogging and deforestation; Agricultural activities such as: Activities that lead to depletion of soil nutrients through poor farming practices such as exposure of naked soil after crop harvesting; Monocultures which destabilize the local ecosystem;
The administered poison must have a low toxicity so that it does not cause further damage to other animals or plants; a popular toxin that has worked well is Botulin toxin C. [10] As for highly degraded plots of land, planting semi-artificial grassland is the umbrella term that is used to address this type of restoration. [2]