Towards control of desertification in African drylands Problems, experiences, guidelines (Sonderpublikation der GTZ) by

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Number of Pages241
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Open LibraryOL9008364M
ISBN 103880852901
ISBN 109783880852907

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Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. The Human Dimension of Desertification inthe Drylands of Africa + MBKDARKOH* ABSTRACT Desertification is land degradation in drylands.

The United Nations Environment Programme estimates that one third of the drylands in Africa are affected by desertification at moderate or high degree and that 73 per cent of the total.

Land desertification in arid and semiarid China is the outcome of long-term interactions between natural and social-economic factors [4]. Approximately million ha, one-third of China, is prone to desertification, and the direct economic loss caused by desertification is more.

Drought is one of the major natural causes of desertification in the drylands. Drought is normally considered as a consequence of natural reduction in the amount of precipitation received over an extended period of time. It is thus a temporary aberration, unlike aridity which is a permanent feature of the climate.

Oct 01,  · Tales of desertification across the world’s drylands are a recurrent theme in policy discourse. This book takes issue with many of the assumptions around desertification, with cases ranging from Central Asia to West Towards control of desertification in African drylands book to the Mediterranean to the American Ian Scoones.

Africa is particularly vulnerable to desertification. Two thirds of the continent consists of desert or drylands. The obvious causes of desertification and deforestation consist of major ecosystem changes, such as land conversion for various purposes, over-dependence on natural resources and several forms of unsustainable land use.

However. These characteristics make drylands vulnerable to erosion. The agents of erosion are water and wind and these remove the topsoil first. Once this nutrient-rich layer of topsoil is gone, few plants grow in the soil.

This loss of the biological potential of land is called desertification. The link between desertification and hunger and. The human dimension of desertification in the drylands of Africa Article (PDF Available) in Journal of social development in Africa 11(2) · January with Reads How we measure 'reads'.

Action Against Desertification is an initiative of the African, Caribbean and Pacific Group of States (ACP) to restore drylands and degraded lands in Africa, the Caribbean and the Pacific to tackle the detrimental social, economic and environmental impact of land degradation and desertification.

Expanding Africa's Great Green Wall. Desertification - the degradation of soils in drylands - is a phenomenon occurring in scores of countries around the globe. The number of people (in semiarid regions) affected by the steady decline in the productivity of their lands is in the hundred millions.

Nov 13,  · Desertification is an increase in the desert like conditions in arid or semi-arid lands, or more easily said, the spreading of the deserts.

It can be caused by the climate, humans, and animals. Climate causes desertification because Africa goes through droughts which makes it pretty much impossible for vegetation to survive, thus, creating. Major policy interventions and changes in management approaches, both at local and global levels, are needed in order to prevent, stop or reverse desertification.

Prevention is a lot more cost-effective than rehabilitation, and this should be taken into account in policy decisions. Addressing desertification is critical and essential to meeting the Millennium Development Goals which aim to.

book, ‘Let us find a positive narrative for the drylands’. This book is an important part of this project, but only a first step. Let us hope its contents are widely read and that it is made available for free at a much cheaper price to all those policymakers and donors stuck in the old paradigm.

Only then will we see the end of desertifica Author: Ian Scoones. Disputing environmental change in the drylands is a landmark book about the concept of desertification, featuring contributions from a global team of experts on dryland issues. The second chapter, entitled 'Desertification in the Sahel: local practice meets global narrative', is written by Toulmin and Karen Brock.

Desertification in Africa Mostafa Kamal Tolba This article looks at desertification - both on a global scale and as it relates to Africa. Desertification is defined here as the diminution or destruction of the biological potential of the land, and is caused basically by overuse of in- Cited by: Desertification poses one of the greatest environmental challenges today and constitutes a major barrier to meeting basic human needs in drylands.

Finding 2. Desertification is land degradation in drylands that affects biological productivity as well as the livelihoods of millions of people. Botswana country paper for the Africa-Asia forum on the UN convention to combat desertification.

Department of Environmental Science, University of Botswana, Unpublished Paper, 32 pp. Ringrose, S. and Matheson, W. Desertification in Botswana: progress towards a viable monitoring system. Desertification Control Bulletin 13, 6– Dec 13,  · Five Ways to Help Stop Desertification of the World. Drought, deforestation and climate change.

All of these contribute to the extreme global issue known as desertification. According to the environmental campaign Clean Up the World, desertification is the degradation of land in drylands, which affects all continents except Antarctica.

Drylands have been cradles to some of the world’s greatest civilizations, and contemporary dryland communities feature rich and unique cultures. Dryland ecosystems support a surprising amount of biodiversity.

Desertification, however, is a significant land degradation problem in the arid, semi-arid. Despite an increasingly sophisticated understanding of dryland environments and societies, the uses now being made of the desertification concept in parts of Asia exhibit many of the shortcomings of earlier work done in Africa.

It took scientists more than three decades to transform a perceived desertification crisis in the Sahel into a non-event. May 14,  · Desertification includes land degradation in arid, semi-arid and dry sub humid areas resulting from various factors, including climatic variations and human activities.

Desertification affects as much as one-sixth of the world's population, seventy percent of all drylands, and one-quarter of the total land area of the world. Desertification Top 10 List.

Harappan Civilization. Desertification has played a major part in much of recent human history (last 10, or so years). It’s contributed to the collapse of many major civilizations and empires — from Carthage, to the Harappan Civilization, to Ancient Greece, to the Roman Empire, to Ancient China, etc.

world's drylands, including 22% of Asia's susceptible drylands, and 25% of Africa's. Land degradation and desertification conistitute one of the most serious environmental problems facing the world today.

Desertification threatens the drylands of Sub -Saharan Africa more than any other region in. SECTION 2: Overview of drought and desertification situation in Africa Drought and desertification are at the core of serious challenges and threats facing sustainable development in Africa. These problems have far reaching adverse impacts on human health, food security, economic activity, physical infrastructure, natural resources and.

Jan 01,  · Droughts have been occurring persistently in southern African dryland regions for over a century. The impacts of droughts on people, their domesticated animals, wildlife, rangelands and cropped lands have been shown to be astronomical.

If left alone the rangelands often recover after the calamity, however human occupation has led to irreversible damage. Even though some communities have Cited by: The Great Green Wall (GGW) initiative aims to implement actions to end or reverse land degradation, loss of biodiversity in African drylands and to ensure that ecosystems are resilient to climate.

Desertification is a type of land degradation in drylands involving loss of biological productivity caused by natural processes or induced by human activities. It is caused by a variety of factors, such as through climate change (particularly the current global warming) and through the overexploitation of soil through human activity.

When deserts appear automatically over the natural course of. Sep 29,  · The original image of desertification referred to 'desert encroachment', a scary metaphor easily pictured as scenes of withering vegetation followed by the arrival of windblown sand.

By the s, however, the desertification metaphor in its original, literal concreteness had become difficult to defend against contrary scientific evidence. Oct 22,  · 22 OctoberBrussels/Rome - The European Union (EU) and FAO in collaboration with the African, Caribbean and Pacific Group of States (ACP) have launched a €41 million, year programme to bolster sustainable land management and restore drylands and degraded lands in Africa, the Caribbean and the Pacific.

The programme, named Action Against Desertification, is crucial in. Oct 17,  · In Africa, this presents a serious problem where more than million acres of land, which constitutes 73% of its drylands, are affected by desertification.

Jan 29,  · Africa is the continent most affected by desertification, and one of the most obvious natural borders on the landmass is the southern edge of the Sahara countries that lie on the edge of the Sahara are among the poorest in the world, and they are subject to periodic droughts that devastate their peoples.

African drylands (which include the Sahara, the Kalahari, and the. - drylands become more arid or desert like - interconnection of many factors, including human activities and climatic variations. - The combination of drought and desertification is responsible for changing 12million hectares of land into desert like environments every year.

The End of Desertification?: Disputing Environmental Change in the Drylands (Springer Earth System Sciences) - Kindle edition by Roy H. Behnke, Michael Mortimore. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading The End of Desertification?:Manufacturer: Springer.

RANGELANDS 16(5),October Desertification and Degradation of Africa's Rangelands Jerrold L. Dodd Conventional and politically correct wisdom usually states or imphes that massive areas of Africa have been and are being desertified by domestic livestock.I recently reviewed the literature on the issue and found that the published sci.

eas. Drylands comprise 41% of the earth’s land area and are home to roughly 2 billion people, or 34% of the earth’s population. Currently, over million people in more than countries are directly affected by desertification and more are at risk. The situ-ation is most severe in Africa, where 66% of the total land area is arid or semi.

1 In a recent book on drylands, the authors noted in a section on desert expansion and its causes that "There are two schools of thought about the mysteries of the expanding deserts: either the changes are due entirely to climate variation, or man is the cause, independently of.

UNESCO – EOLSS SAMPLE CHAPTERS LAND USE, LAND COVER AND SOIL SCIENCES – Vol. V – Dry Lands and Desertification - Willy Verheye ©Encyclopedia of Life Support Systems (EOLSS) Figure 2: Extension of dry lands in Africa In southern Africa desert conditions prevail along the west coast from Angola to the Cape Province.

Desertification in the Sahel Desertification is the degradation of land in arid, semi-arid, and dry sub-humid areas. It is caused primarily by human activities and climatic variations. Desertification does not refer to the expansion of existing deserts.

It occurs because dryland ecosystems, From West Africa Drylands Project. Apr 30,  · United Nations Convention to Combat Desertification (UNCCD) Despite several efforts made, the progress in combating desertification was not at the expected level.

A new and more effective approach was required at all levels within the framework of sustainable development. desertification. The table below shows the population in drylands by each continent and as a percentage of the global population of the continent.

It reveals a high ratio especially in Africa and Asia. There is a vicious circle by which when many people live in the dryland areas, they put pressure on vulnerable land by their.Jul 16,  · Desertification in Africa’s ASAL, thus, poses a real danger of a heat inversion developing over several parts of the continent which would lead to a decrease in rainfall.

Finally, in many African countries desertification is creating `environmental refugees’.Many political and institutional problems have conspired to degrade 20% of the world's drylands, including 22% of Asia's susceptible drylands, and 25% of Africa's.

Land degradation and desertification conistitute one of the most serious environmental problems facing the world today.

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