6 edition of Degradation of the Land (Earth at Risk) found in the catalog.
Degradation of the Land (Earth at Risk)
June 1900 by Chelsea House Pub (L) .
Written in English
|The Physical Object|
Equilibrium simulation experiments, aimed at implementation of package of trade liberalization measures in Calabar South including a modest reduction in cereals prices, was found to exert a substantial effect on land use. Finally, the farming system utilized must correctly identify a wide range of indicators and avoid the usual problem of selection of a limited number that can only be applied to specific situations 6. In the Andean region of Colombia, workers from the University of Hohenheim, Germany Ruppenthal,have observed severe losses due to accelerated erosion on some lands. It is the lands under cultivation which face the biggest challenge of land degradation in India. Table 1. The book assembles various topics of interest for a large audience.
The success of policy reforms, however, relies on the pervasiveness of markets and the feasibility of market-based instruments. Conservation techniques in land cultivation Proper land cultivation mechanisms hold as one of the most sustainable ways of avoiding soil quality decline. As urban population increases, infrastructure requirements including transportation, water and sewage facilities, housing, schools, commerce, health, and recreation all contribute to urban sprawl. There are consequently large differences between estimates of areas at risk and areas actually affected by land degradation One of the most obvious direct causes and driving forces of land degradation in Calabar South is the mismatch between land potential and actual land use which is different from land cover and it includes information on land management and inputs. Research has shown that desmodium ovalifolium, stylosanthes gracillis and clitoria ternetea provides useful ground cover, and help to control land degradation. Effects of land degradation on productivity Information on the economic impact of land degradation by different processes on a global scale is not available.
The Green Revolution has been accompanied by over exploitation of land and water resources and use of fertilizers and pesticides have increased manifold. Many researchers argue that this definition of desertification is too narrow because severe land degradation resulting from anthropic activities can also occur in the temperate humid regions and the humid tropics. Soil scientists have an obligation not only to show the spatial distribution of stressed systems but also to provide reasonable estimates of their rates of degradation. The alarming decline, which is forecast to continue as demand for food and productive land increases, will add to the risks of conflicts such as those seen in Sudan and Chad unless remedial actions are implemented, warns the institution behind the report.
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This research can be summarized in two points. A precautionary approach, must take into account the relative magnitude of the problem, the relative importance of land degradation to the poor and the relative weakness of existing institutional and market-based mechanisms to deal with on-site degradation and externalities this means that efforts to reduce land degradation should focus on sloping lands and forest margin areas in Calabar South and should depend mainly on market-based instruments, accompanied by efforts to ease and increase investment in the development of technologies for sustainable agriculture Land resources are non renewable and it is necessary to adopt a positive approach to ensure sustainable management of these finite resources.
Monetary values aside, the problem of land degradation becomes more acute when the welfare of the poor is given higher priority. Oldeman used the terms light, moderate, strong, and extreme, and these terms may not be comparable to those of Dregne and Chou.
The second school, comprising primarily economists, believes that if land degradation is a severe issue, why market forces have not taken care of it. Mechanisms that initiate land degradation include physical, chemical, and biological processes Lal, Fragility, extreme sensitivity to degradation processes, may refer to the whole land, a degradation process e.
Soil compaction is a worldwide problem, especially with the adoption of mechanized agriculture. In a series of forecasts on land use forthe authors note that sub-Saharan Africa, south Asia, the Middle East and north Africa will face the greatest challenges unless the world sees lower levels of meat consumption, better land regulation and improved farming efficiency.
The use of vegetable barriers as the most pertinent and cost effective erosion control measures in the area.
This is frequent in semi-arid environments, where fuel-wood shortages are often severe. The destruction of the forests is mainly a result of clearance for agriculture. This means that the soil was severely eroded due to erosion which washed away all the available nutrients. To restore the lost soil mineral matter and organic content, it would require what is known as land reclamation.
The importance of the local people participating in all levels of conservation. Oldeman et al. Students of geography, agriculture, environmental science and rural planning, along with all members of the community interested in an objective appraisal of land degradation will find this an engaging, accessible and informative book.
Finally, the farming system utilized must correctly identify a wide range of indicators and avoid the usual problem of selection of a limited number that can only be applied to specific situations 6.
High levels of food consumption in wealthy countries such as the UK are also a major driver of soil degradation overseas. Worst affected is sub-Saharan Africabut poor land management in Europe also accounts for an estimated m tonnes of soil loss from erosion each year with impacts not just on food production but biodiversity, carbon loss and disaster resilience.
Overgrazing is the grazing of natural pastures at stocking intensities above the livestock carrying capacity ; the resulting decrease in the vegetation cover is a leading cause of wind and water erosion. As the land resource base becomes less productive, food security is compromised and competition for dwindling resources increases, the seeds of famine and potential conflict are sown.Effects of Deforestation on Land Degradation.
Book · July this book sets out to provide a critical introduction to the subject, aimed at provoking debate and action.
It begins by stating Author: Olofin Emmanuel. ADVERTISEMENTS: Read this article to learn about the meaning, factors responsible, prevention and control measures of land degradation: The change in the characteristic and quality of soil which adversely affect its fertility is called as Degradation.
ADVERTISEMENTS: Land degradation is the major consequences of direct interference of human activities in the natural phenomenon. Land Degradation and Desertification: Assessment, Mitigation, and Remediation reports research results in sustainable land management and land degradation status and mitigation in 36 countries around the world.
It includes background papers with continental and international perspectives dealing. Sep 12, · A third of the planet’s land is severely degraded and fertile soil is being lost at the rate of 24bn tonnes a year, according to a new United Nations-backed study that calls for a shift away.
Land degradation can also lead to climate change and affect human health. The problem is more pronounced in least developing countries due to overdependence of natural resources for survival. Sustainable ways to reduce land degradation and desertification demand research and advocacy of sustainable land management atlasbowling.com by: 1.
Degradation definition is - the act or process of degrading. How to use degradation in a sentence.