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Cause,effects and response of desertification essay
An Essay on Global Desertification
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What is desertification?
Desertification is the procedure through which constructive land turns non-productive as a result of poor land management, climatic changes, and human activities. The United Nations Convention to Combat Desertification (UNCCD) defines desertification as, “land degradation in arid, and semi-arid areas resulting from various factors including climatic variations and human activities.” Across the globe, desertification affects the subsistence of millions of people, who largely depend on the products provided by such dryland ecosystems.
Where does desertification occur?
The world’s dry lands are mainly found in:
Two belts centered on the Tropics of Cancer and Capricorn
The North American Great Plains and parts of Central
For example, then, drought is difficult to define in modern standards, it is typically classified as a shortage of water, usually associated with a deficit of rainfall. That is, drought occurs when the demand or use for water exceeds the current supply of water. It follows, then, the Colorado river drought does not solely affect one area, it’s grandeur has affected the whole southwestern United States. Additionally, the Colorado River Basin Water Management: Evaluating and Adjusting to Hydroclimatic provides information on the meager volume of rain fall. In theory, then, combined with increased temperatures from global warming, and a deficient of rainfall both circumstances have had a descending effect on most surrounding
The people affected by Desertification and climate change could move further south of Africa like Cameroon or Congo or other county's around that sort of area, We could do this by Transporting them all by bus, train or car if it is possible.
Agriculture is an absolute necessity for human life on Earth to continue. There are too many people on the planet for existence as hunters and gatherers to work anymore. That said, it must be realized that concessions must be made to allow such food growth and production to occur. But this does not mean that another important element of life on Earth can be destroyed for it. Unfortunately, that is indeed what is occurring, at an alarming rate. The rainforests of the planet are dwindling as the land they belong on is used more and more for agriculture, all over the world. In the Amazon, ,the most commonly detrimental agricultural practice is the technique of land clearing known as Slash and Burn.
A drought means there is not enough precipitation. It is a period of unusually dry weather that keeps on long enough to cause environment or economic problems which result in a water shortage and destroy vegetation, animals and crops. Drought can happen even if there is some rainfall. Bushfires and heat waves will occur because of drought. (Francesca.F, 2000)
DESERTIFICATION (p. 94): degradation of land, especially in semiarid areas, primarily because of human actions such as excessive crop planting, animal grazing, and tree cutting. Also known as semiarid land degradation.
Traditional agriculture requires massive forest and grassland removal to obtain land necessary to farm on. Deforestation and overgrazing has caused erosion flooding, and enabled the expansion of deserts. But with drainage systems, leveling, and irrigation provided by the Green Rev, all this terra deforming will unlikely happen again. We can retain clean air and lessen the global warming effect caused by deforestation.Many people argue that a revamp in agriculture will be way too expensive and unrealistic especially for those poor farmers in third world countries. However many times, they exaggerate the price.
Introduction: Drought affects our lives in many different ways because water is such an important part of so many of our activities. We need water to live, and animals and plants do too. We need water to grow the food we eat. We also use water for many different things in our lives, like washing dishes, cooking, bathing, and swimming or river rafting, so water is very important for us to survive.
However, the storms, floods, fire and drought that are already playing havoc with agriculture are likely to have a significant negative impact, along with the longer term flooding of coastal areas.
The weather in this novel controls their crops and the river flow; which controls their food and water supply. They depend on adequate rainfall to help their crops to grow and for the river to be full. They also depend on the sun to warm things up and make the crops grow. However, if there is too much rain or too much sun it can cause many problems, such as a drought or a flood. These things are significant in this novel, because t...
United Nations Environment Programme, 1997: World Atlas of Desertification, 2 ed. United Nations Environment Programme, Nairobi.
They take pride in caring for the land, water and natural resources in several ways. One way is by using cover crops which are plants grown to protect the soil and put healthy nutrients back into it, while slowing erosion, controlling pests, and increasing organic matter. They also use crop rotation by planting different crops in the same field but during different times. This keeps the land fertile because not all of the nutrients are being used with each crop. Buffer zones are another technique farmers use to plant strips of vegetation between the fields and bodies of water to keep the soil out of the water source. No till fields are used to keep the soil in place when it rains, helping moisture stay in the
14. Southwick pp. 130-131. He lists "deforestation, overgrazing, intensive burning, over-cropping, land scarring, and extravagant use of irrigation" which had consequences such as "increased erosion, soil loss, declining water tables, salination…reduced atmospheric humidity and cloud cover, increased heat reflectivity, and lower amounts of rainfall."
Agriculture is the major farming activity. Agriculture's scale means not only that large area is directly affected, but that local and even regional climates can be affected. The draining of water from rivers and watersheds for irrigation leads to drier natural habitats. Those rivers that receive runoff from farmland are often poisoned by excessive nutrients and pesticides.
Agriculture is one of the most ancient forms of art and science that ties human development and well-being to natural resources and ecosystems. (Fritz J. Häni, 2007) Sustainable Agriculture is the production of food, fibre, plant and animal products using farming techniques that protect the environment, public health, human communities and animal welfare. (Sustainable Agriculture - The Basics, 2015) Sustainable agriculture is an integrated system of plant and animal production practices having a site – specific application that over the long term will:
Climate change is currently affecting agriculture because it is causing prolonged droughts, violent flooding, sea level to rise, and also health related issues. Droughts and flooding utterly affect agriculture because it damages cultivation since the amount of water applied to crops and farming is fundamental to the...