Natural causes of desertification. 11 Desertification Causes Explained (Natural and Manmade) 2022-11-01
Natural causes of desertification
Desertification is the process by which fertile land becomes a desert, typically as a result of climate change and human activities. While desertification is often associated with human activities, such as overgrazing and deforestation, there are also natural causes of desertification. In this essay, we will discuss some of the natural causes of desertification and their impact on the environment.
One of the main natural causes of desertification is climate change. Changes in temperature and precipitation patterns can lead to a shift in the type of vegetation that grows in an area, leading to desertification. For example, an increase in temperature can lead to a decrease in precipitation, which can cause soil moisture to evaporate and vegetation to die off. Similarly, a decrease in precipitation can lead to a decrease in soil moisture and an increase in desertification.
Another natural cause of desertification is the topography of an area. Mountains, valleys, and other landforms can affect the amount of sunlight, wind, and precipitation an area receives, which can lead to desertification. For example, an area on the leeward side of a mountain range may receive very little precipitation, leading to dry and barren conditions. Similarly, an area in a valley may be protected from strong winds, which can prevent the spread of desertification.
In addition to climate change and topography, natural disasters such as droughts and wildfires can also contribute to desertification. Droughts can cause a lack of moisture in the soil, leading to the death of vegetation and the spread of desertification. Wildfires can also destroy vegetation, leading to desertification.
The natural causes of desertification discussed above can have serious consequences for the environment and the people who live in affected areas. Desertification can lead to a decrease in biodiversity, as certain plant and animal species are unable to survive in the dry, barren conditions. It can also lead to a decrease in agricultural productivity, as fertile land becomes less suitable for farming. Additionally, desertification can lead to increased erosion and soil degradation, which can make it more difficult for plants to grow in the future.
In conclusion, desertification is a complex process that can be caused by a variety of factors, including climate change, topography, and natural disasters. Understanding the natural causes of desertification is important for developing strategies to mitigate its effects and protect the environment.
Natural Disasters: Causes and Effects: Lesson 8—Desertification
Healthy soils hold more water and aids in filtering chemicals, which can help reverse desertification as well The goal is to prevent soil erosion and loss of nutrients, and reduce soil acidification. When the land is cleared of trees, the roots of the trees no longer hold the soil together so it is more vulnerable to soil erosion. How is climate change land use and desertification connected? Formerly, the second largest lake in Bolivia filled with diversity of fish and birds had completely dried up just in the span of three years, 2014 to 2017. Deforestation Deforestation removal of trees causes desertification, as trees work to store water and prevent erosion. The upper parts of plants help protect the soil from surface winds, whereas the root network below keeps the soil together. Sadly, the very same process continues to threaten the existence of at least 1. They can also reduce the local effects of drought.
What are the causes of desertification?
And try to do everything in our power to help protect natural resources we have. 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. You can see this wonderful resilience of the plants in Serengeti. Desertification examples include land that has been overgrazed by animals contributing to soil erosion and dryness. Furthermore, through the use of unsustainable irrigation techniques, salt concentration can also rise in many cultivated soils, rendering the soil useless for growing crops or other plants. Why does deforestation cause desertification? This can be caused by drought, overpopulation, over-farming, deforestation and climate change.
Causes and Effects of Desertification
It also provides the change analysis for the duration of 15 years, from 2003-05 to 2018-19. Avoiding Over-cultivation and Overgrazing: Farmers should avoid repetitive crop production. People struggle to survive without food and water, and it takes them a long time to try and get what they need. Causes of Desertification: Deforestation Credit: Amazônia Real 2020. As a result, since many farmers rely completely on farming as their only source of income, many of them risk losing their livelihood. Around 1 billion people live in these environments Due to varying definitions of desertification in the last 80 years, desertification is often confused with drought. When a habitable and fertile land loses its vegetation due to natural drought or human activity, the land begins to change.
Top 14 Effects of Desertification
Wild boar love to dig up plant roots and therefore contribute to the destruction of vegetation. Famines: When degraded land is no longer produce crops and drought prevails then all these conditions contribute to famines and cause food insecurity in the area. Some nations are now forced to rely on other nations to supply their food needs. Human Influence on Desertification Although desertification can occur naturally due to extreme droughts, there are many situations where the process of desertification has been caused or accelerated by human activities. The effects of climate change, which is also driven by humans, and the destruction it causes in the form of extreme weather phenomena such as droughts, hurricanes, fires, etc.
What causes desertification?
Under circumstances like these, people often overextract water from available resources like creeks, rivers or even groundwater to irrigate the crops. People rely on vegetation for food, to feed their livestock, and to heat their homes. If biodiverse ecosystems disappear, we will be left with pollution, drought, hunger and lack of resources. Over the past century, the Sahara desert has been expanding by more than 7,600sq km a year and is now 10% larger than it was in 1920. Where is desertification happening the most? This deforestation may cause desertification. SOLUTIONS TO DESERTIFICATION The effects of desertification can be tackled in a number of ways.
Causes of desertification
Other ways by which overpopulation can cause desertification, is through increase in the risk of unsustainable agricultural practices, and environmental degradation. Climate Change Various anthropogenic factors and human activities may result in climate change. An example of this is the Younger Dryas event which was characterized by a large spike in temperature, followed by a plummet in temperature, before the Earth warmed up again and experienced a reduction in glaciation. These irrigation techniques frequently cause salt to accumulate in soils. On what was previously lush soil with enormous agricultural potential, enormous skyscrapers, residences, and more frequently, commercial developments are now constructed.
Desertification Causes & Examples
Numerous animals and plants frequently lose their habitats as a result of desertification. Although human activity accounts for the majority of desertification, natural occurrences have also been a significant contributor. These are Mizoram, Arunachal Pradesh, Assam, Tripura, Nagaland, and Meghalaya. Many entering the U. Furthermore, additional problem arises from the space problems.
Desertification: Causes and Impact
This may come from improving local governance or through direct community action. Overcultivation or overcropping occurs in population-dense areas around the globe. The Atlas provides a state-wise area of degraded lands for the time frame 2018-19. Countries affected by desertification do not have to be located only in hot regions of the world because it is the local climate and land use that shape the health of the land. The effects of environmental issues can be reduced with effective preventive measures. How do I restore land degradation? Excessive usage and mismanagement of water and other resources can cause a decline in land productivity, thereby leading to desertification.
4. What are the major causes of desertification?
Desertification has caused major environmental and socioeconomic problems in many arid and semiarid areas of the world1. Climate Change Climate change as a whole is causing desertification to accelerate. What are the 10 effects of climate change? An increased population is putting greater pressure on the environment for resources such as wood and water. Biodiversity Preservation Biodiversity is the variety of animal and plant life that exists. It is being implemented by the Ministry of Environment, Forest, and Climate Change National Action Programme to Combat Desertification: It was prepared in 2001 to address issues of increasing desertification and to take appropriate actions.
What are 3 causes of desertification?
However, something that we don't hear so much about is that over recent years there has been an increase in the amount of land that is classified as a desert. Policies to replace pastoralism with sedentary cultivation in rangelands can contribute to R6. They can cope with incremental challenges and adapt, but beyond a certain tipping point they collapse. This causes desertification as land is made less fertile. This lack of water also has environmental effects, such as increased risk of fire. ClearIAS Intelligent Elimination Techniques IETs : 40 IETs to solve difficult questions using logic and common sense.