The success of restoring drylands and its ecosystem totally depends upon human resources, infrastructure and of course funds. Techniques focus on two aspects: provisioning of water, and fixation and hyper-fertilizing soil. Agriculture also plays a major role depending on how it is managed. I believe these human activities, which are all classified under improper farming practices, cause human-induced desertification. It is caused by a variety of factors, such as through particularly the current and through the of soil through human activity. Environmental problems Of all the global environmental problems, desertification is, perhaps, the most threatening for poor rural people. Technology Advances Unfortunately, preventing desertification is not always possible.
There may be hope for the world after all! Enriching of the soil and restoration of its fertility is often done by plants. However, education can be an important tool in developing nations. Archived from on June 25, 2013. Scientists still debate over what constitutes desertified land, but this is one of the most accepted definitions. Some of these drivers are simply the result of natural environmental variation and shifts that are the result of larger natural patterns, but many are also simply the direct result of human actions. The adverse effects of desertification also include floods in heavy rainfall regions, land, water, and air pollution, storms and several other natural disasters, all of which can be fatal to human life. Losses of vegetation and biodiversity threaten habitat for other species.
Other factors are involved, such as climate change, straining sources of groundwater, urbanization, natural disasters, deforestation, and more. A sahel is the fringe of the desert. Meanwhile, the nutrients from the soil are also lost, making it useless. The process of desertification is worsened as the soil becomes increasingly arid, and there are no more plants to hold it in place and distribute nutrients. Drainage of subterrainian aquifers such as Artesian Basins. There is a huge combination of economic, political, social and natural factors that can cause desertification. If plants are removed, the soil will have nothing protecting it, and it will be more susceptible to erosion by wind.
The sahel is the edge which is spreading. This involves the digging of 150 m long, 1 m deep trenches in the soil. Sedentary farming in areas which are suited to grazing can also contribute to desertification. The farmer maintains yields through applications of artificial fertilizer and herbicides. This causes , which will, in the long run, end up continuing the cycle of desertification that started this whole thing anyway. . For example, trees can be used to preventsoil erosion and reduce polluted runoff into nearby bodies of water.
In turn, this initiates the process toward the area becoming a desert biome over time. The most severely affected areas in the U. And humans make mistakes; they are not perfect. Salt encroachment of surface areas that turn into deserts due to a rise in underground salt water tables, and, overuse, damming and pollution of natural waterways and aquifers. Taking a critical look at desertification will help us spur initiatives of reversal and prevention in an effective way.
So, in other words, bad outcomes no matter what course of action is taken. There are efforts in the Gobi Desert in China and the Sahara in Africa to use afforestation to prevent the desert from claiming more land area. However, these are natural deserts, with carefully balanced ecosystems of their own. Global trade regimes and linked government policies can influence food and consumption patterns significantly and affect directly or indirectly the capacity of to recover from stresses. I have spent the past couple of hours watching them and related videos. Which, itself, predictably leads to social problems. We already have the statistics for the future: the growth percentages of pollution, overpopulation, desertification.
The problem is that eventually the world will run out of soil and be unable to grow food. This overall change is known as desertification, which is the conversion of habitable and fertile land to uninhabitable desert. The 1930s Dust Bowl As a result of poor farming practices and drought, the U. When farmers clear the land to plant crops, they expose the soil to win … d, which can cause erosion. Vegetation plays a major role in determining the biological composition of the soil. It has been estimated that some 10—20% of drylands are already degraded, the total area affected by desertification being between 6 and 12 million square kilometres, that about 1—6% of the inhabitants of drylands live in desertified areas, and that a billion people are under threat from further desertification. Preventing desertification can also aim at eradicating poverty and ensuring environmental protection.
This can lead to vegetation loss and eventually desertification. Stop burning fossil fuels: this will go a long way to halt climate change and global warming and stop the earth reaching the scorching temperatures that cause desertification. Round the decay Of that colossal wreck, boundless and bare The lone and level sands stretch far away. This is an issue because the cultivation of arid and semi-arid lands in regions like the Sahelian region of Africa is helped by the fact that the soils are usually rich in. Animals also trample the pace of desertification. It can very quickly become a dry desert. There they focus primarily on educating the local population about the dangers of deforestation and sometimes employ them to grow seedlings, which they transfer to severely deforested areas during the rainy season.
Loose soil bury plants, or their roots become exposed and cannot fulfill their function. Paleodeserts are large now inactive because they are stabilized by vegetation, some extending beyond the present margins of core deserts, such as the , the largest hot desert. Without plants and trees, a biome has small chances of thriving or even surviving. In countries where policy change will actually be enforced on those in the country, policy change related to how often people can farm and how much they can farm on certain areas could be put into place to help reduce the problems that are often associated with farming and desertification. We do not live in area where desertification is a problem; however, the people who live in Africa are most affected by desertification Encyclopedia Britannica.