Desertification is a type of land degradation in drylands which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly more arid. It is caused by a variety of factors, such as through climatic changes and through the over exploitation of lands through human activity.Desertification is a significant global ecological and environmental with far-reaching socio-economic and political consequences.
Serious and extensive land deterioration is the causes for desertification.SAHARA DESERT is the most effected area. The impact of global warming and human activities are presented in the Sahel. In this area the level of desertification is very high compared to other areas.Another major area that is being impacted by desertification is the GOBI Desert.South America is another area affected by desertification, as 25% of the land is classified as drylands. In Mangolia, around 90% of grassland is considered vulnerable to desertification by the UN. In India, The THAR affected most of lands.
The immediate cause 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.one of the most common causes is overgrazing.Overpopulation is one of the most dangerous factors contributing to desertification.climatic changes is likely a major contributing factor in the desertification process. . The continuous use of the land rapidly depletes the nutrients of the soil causing desertification and pesticide smay deplects its ph value.
The Effects of desertification is Sand and dust storms.There has been a 25% increase in global annual dust emissions between the late nineteenth century to present day. Food security: Global food security is being threatened by desertification and o er population.Vegetation patterning:landscape may progress through different stages and continuously transform in appearance.Desertification is decreasing the amount of sustainable land for agricultural uses but demands are continuously growing.
Due to Desertification, The world losses its habitat.They also suffer from poor economic and social conditions.This situation is exacerbated by land degradation because of the reduction in productivity.Agriculture is a main source of income for many desert communities. The increase in desertification in these regions has degraded the land.This has negatively impacted the economy and increased poverty rates.Planting more trees – the roots of trees hold the soil together and help to reduce soil erosion from wind and rain.
- Planting more trees – the roots of trees hold the soil together and help to reduce soil erosion from wind and rain.
- Improving the quality of the soil – this can be managed by encouraging people to reduce the number of grazing animals they have and grow crops instead.
- Control of population and overgrazing. These are reduction factors of Desertification.