This can be caused by several factors. Ambrose, T.J. Bassett, M.L. Land degradation can also refer to the deterioration or destruction of vegetation and water resources. Also, environmental degradation aspects such as deforestation and mining destroy the natural land cover. Shifting ecological risk: increased vulnerability of the environment or people to destruction or crisis. Soils are a fundamental natural resource, and are the basis for all terrestrial life. Surface Runoff Surface runoff is a natural type of land erosion that occurs when excess water from storms and melting snow carries soil away. Enrich your vocabulary with the English Definition dictionary Definition: Land degradation is the reduction or loss of the biological or economic productivity and complexity of rain—fed cropland, irrigated cropland, or range, pasture, forest or woodlands resulting from natural processes, land uses or other human activities and habitation patterns such as land contamination, soil erosion and the destruction of the vegetation cover. [7], In addition to the usual types of land degradation that have been known for centuries (water, wind and mechanical erosion, physical, chemical and biological degradation), four other types have emerged in the last 50 years:[8]. Land degradation is an important factor of internal displacement in many African and Asian countries.[10]. In land degradation, land that was once rich in nutrients and able to support diverse organisms becomes compromised. 40 guest articles. defined by the UNCCD as the persistent degradation of dryland ecosystems by human activities, including unsustainable farming, mining, overgrazing and clear-cutting of land, and by climate change. Plagiarism Prevention 4. Before publishing your articles on this site, please read the following pages: 1. Land degradation means: 1. Land degradation can therefore be defined as the misuse of land or the deterioration in the quality of the land through excessive exploitation of the land. Population pressure also operates through other mechanisms. Bowen, D.E. Avoiding soil degradation is crucial to our well-being. 2. • Poor land management practices include grazing of stock that has hard hooves, growing of crops that require large amounts of fertilisers and pesticides especially superphosphate and nitrogen, and irrigation for crops on sandy soils. Land degradation is a process in which the value of the biophysical environment is affected by one or more combination of human-induced processes acting upon the land. Land Degradation is a global concern for sustainable development, conservation of biodiversity and mitigating and adapting to climate change. [1] It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable. There are four main ways of looking at land degradation and its impact on the environment around it: A problem with defining land degradation is that what one group of people might view as degradation, others might view as a benefit or opportunity. Other dryland regions have also experienced desertification. However, there is no single internationally-approved definition of “degraded land”. Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. Land degradation is the major consequences of direct interference of human activities in the natural phenomenon. Land degradation is a big loss to the economy as the land loses its production potential and gets converted into wastelands. Exposure of naked soil after harvesting by heavy equipment, This page was last edited on 4 January 2021, at 13:41. 3. 5. The state of being degraded; degeneration. The growing population pressure, during 1980–1990, has led to decreases in the already small areas of agricultural land per person in six out of eight countries (14% for India and 21% for Pakistan). Overall, more than 36 types of land degradation can be assessed. Johnson, D.L., S.H. What is land degradation? Populations can be a benefit to the land and make it more productive than it is in its natural state. 2 Land degradation affects people and ecosystems throughout the planet and is both affected by 3 climate change and contributes to it. [technical] There are serious problems of land degradation in some arid zones. In this report, land degradation is defined as a negative trend 4 in land condition, caused by direct or indirect human-induced processes including anthropogenic The degradation of land or of the environment is the process of its becoming damaged and poorer, for example because of the effects of pollution, industry, and modern agricultural methods . Action in the land's capacity to provide resources for human livelihoods. ... Related to degradation: Land degradation. Severe land degradation affects a significant portion of the Earth's arable lands, decreasing the wealth and economic development of nations. Land Degradation: Meaning, Definitions, Causes and impacts. Policies and programmes to halt and reverse land degradation have long suffered from the absence of a clear overarching goal and quantitative, time-bound targets to guide action and make measurable progress. 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. This is frequent in semi-arid environments, where fuelwood shortages are often severe. In turn, unsustainable land use is driving land degradation. Prohibited Content 3. This is particularly the case for populations living in rural areas where most of the poor people reside: estimates report that 80% of the extreme poor live in rural areas and 65% work in the agricultural sector. Land Degradation Land degradation is defined as the temporary or permanent decline in the productive capacity of the land, and the diminution of the productive potential, including its major land uses (e.g., rain-fed arable, irrigation, forests), its farming systems (e.g., smallholder subsistence), and its value as an economic resource. Define degradation. High population density is not always related to land degradation. Some types of degradation include salinification and acidification of soils, topsoil loss, soil compaction , and pollution of land that makes it unusable. Land degradation threatens the livelihoods of billions of people around the world . Land Pollution can simply be defined as the contamination or degradation of earth surface. For example, if soil degrades so much that all nutrients are lost, the land may no longer be able to support any life. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable. Deserts, semi-arid lands, and dry woodlands also constitute a large potential source of carbon emissions into the atmosphere. Land degradation is caused by multiple forces, including extreme weather conditions, particularly drought. Continuous tillage of the soil definitely lead to land degradation and leaching which in turn leads to loss of soil nutrients. Land degradation results from the combined effects of processes such as loss of biological diversity and vegetative cover, soil loss nutrient imbalance, decline in soil organic matter and decrease of infiltration and water retention capacity. The economic impact of land degradation is extremely severe in densely populated South Asia, and sub-Saharan Africa. Land Degradation As the land use section earlier in this chapter shows, demands on the land for economic development and pressures from a burgeoning population are leading to unprecedented land use change. It is a significant factor in Afghanistan. It is a global issue with millions of people being affected, even forcing them […] Land definition is - the solid part of the surface of the earth; also : a corresponding part of a celestial body (such as the moon). Data on land degradation of global scale are scarce, but recent estimates suggest that 5-6. Degradation also means the process of spoiling or destroying something. Land degradation is a global challenge that affects everybody through food insecurity and higher food prices, through climate change and environmental hazards, and through the loss of biodiversity and ecosystem services. A form of land degradation associated with the coast is acid sulfate soils. degradation synonyms, degradation pronunciation, degradation translation, English dictionary definition of degradation. Yet slow but continued degradation can lead to virtually in reversible losses of resources from the ecosystem and the land will degrade beyond self-repair or what we call destroyed or collapsed system. The condition of the soil is one of the best indicators of land degradation. A general definition of land degradation is presented by Wasson (1987) as: "Land degradation is a change to land that makes it less useful for human beings". When these normally waterlogged soils are exposed to air by drainage or drought, the iron sulphides oxidise produc- Land that is degraded becomes less resilient than undegraded land, which can lead to even further degradation through shocks to the landscape. Space Applications Centre (SAC), ISRO has released out an inventory and monitoring of desertification of the entire country in 2016. Find more ways to say degradation, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Degradation definition is - the act or process of degrading. Johnson, P. Lamb, M. Saul, and A.E. Less vegetation cover Although there is a link between land degradation and conflict, we should be careful not to blame the victims. CAUSES OF LAND DEGRADATION 1. Causes include: Overcutting of vegetation occurs when people cut forests, woodlands and shrublands—to obtain timber, fuelwood and other products—at a pace exceeding the rate of natural regrowth. Search land degradation and thousands of other words in English definition and synonym dictionary from Reverso. Copyright 10. [5], The United Nations Sustainable Development Goal 15 has a target to restore degraded land and soil and achieve a land degradation-neutral world by 2030.[6]. Soil degradation is the decline in soil condition caused by its improper use or poor management, usually for agricultural, industrial or urban purposes. Degradation of the natural environment is a worldwide problem, and some examples are quite ancient. Usually land degrad ation is described in terms of the loss The result is a loss of land productivity with impacts on livelihoods and Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. It can be prevented by formation of ridge and furrow during irrigation which lessens run off. Soil degradation refers to negative changes in the physical, chemical, and biological properties of the soil, whereas vegetation degradation is the reduction in the number of species and the vegetational composition. Loss of natural fertility of soil because of loss of nutrients. The most important, according to the EEA (1998), is soil contamination. Content Filtrations 6. Land degradation also has serious knock-on effects for humans, such as malnutrition, disease, forced migration, cultural damage, and even war. Improper agricultural practices, for instance, occur only under constraints such as the saturation of good lands under population pressure which leads settlers to cultivate too shallow or too steep soils, plough fallow land before it has recovered its fertility, or attempt to obtain multiple crops by irrigating unsuitable soils. Content Guidelines 2. Land Degradation • Definition: • Causes: Any change that decreases productivity of the land -Land clearing -Poor land management practices 2 3. Land pollution can mean the misuse of land by human beings. Over the period 1961–2013, the annual area of drylands in drought has increased, on average by slightly more than 1% per year, with large inter-annual variability. Degraded land is land that has lost some degree of its natural productivity due to human-caused processes. Policy Studies Organization (PSO) Summit, December 2011, Special Report on Climate Change and Land, Intergovernmental Panel on Climate Change, "Global food crisis looms as climate change and population growth strip fertile land", A land degradation assessment and mapping method. Some information for local and regional scales is available and has been reviewed by Lal (1998). Changes in climatic conditions because of unbalanced created in the environment. 2. 5. 4. [1] Privacy Policy 8. Degraded land is land that has lost some degree of its natural productivity due to human-caused processes. TOS 7. The soil integrates a variety of important processes involving vegetation growth, overland flow of water, infiltration, land use and land management. Find more ways to say degradation, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. [4], According to the Special Report on Climate Change and Land of the Intergovernmental Panel on Climate Change: "About a quarter of the Earth's ice-free land area is subject to human-induced degradation (medium confidence). Deforestation is taking place at a faster rate due to increasing demands of timber, fuel and forest products which results into degradation of land resources. Desertification and Land Degradation Atlas of India. The act or process of degrading. 15 policy briefs. Land degradation is the major consequences of direct interference of human activities in the natural phenomenon. Resilience is the ability of a landscape to absorb change, without significantly altering the relationship between the relative importance and numbers of individuals and species that compose the community. The report state that: "Climate change exacerbates land degradation, particularly in lowlying coastal areas, river deltas, drylands and in permafrost areas (high confidence). Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. Land Degradation Neutrality (LDN) has been defined by the Parties to the Convention as: A state whereby the amount and quality of land resources, necessary to support ecosystem functions and services and enhance food security, remains stable or increases within … also environmental degradation is the gradual destruction or reduction of the quality and quantity of human activities animals activities or natural means example water causes soil erosion, wind, etc. The term land degradation involves both soil and vegetation degradation. n. 1. Crummey, J.S. Land degradation can go fast, as can be the case of deforestation or forest fires, but often land degradation is a very slow process. Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. Pollution of water resources from the contamination of soil through which water sweeps into ground or runoff to the water bodies. Another word for degradation. Land degradation is a global challenge that affects everybody through food insecurity and higher food prices, through climate change and environmental hazards, and through the loss of biodiversity and ecosystem services. What is Soil Degradation? Changes in the characteristic of soil. It negatively affects food production, livelihoods, and the production and provision of other ecosystem goods and services. Title: Land Degradation 1 Land Degradation 2 Definition. Defining Land Degradation and Improvement "Land'"includes not only the soil resource, but also the water, vegetation, landscape, and microclimatic components ofan ecosystem.! Soil that is contaminated becomes less productive and this reduces the value of land. It thus covers the various forms of soil degradation, adverse human impacts on water resources, deforestation, and lowering of the productive capacity of rangelands. Winter-Nelson. People living in already degraded or desertified areas are increasingly negatively affected by climate change (high confidence). The state of being degraded; degeneration. Land degradation is a process in which the value of the biophysical environment is affected by one or more combination of human-induced processes acting upon the land. For example, planting crops at a location with heavy rainfall and steep slopes would create scientific and environmental concern regarding the risk of soil erosion by water, yet farmers could view the location as a favourable one for high crop yields. Sensitivity and resilience are measures of the vulnerability of a landscape to degradation. 4. It results into reduced growth of vegetation, reduced diversity of plant species, excessive growth of unwanted plant species, soil erosion, and degradation of land due to cattle movement. According to the Special Report on Climate Change and Land of the Intergovernmental Panel on Climate Change climate change in one of the causes of land degradation. Land degradation is any reduction or loss in the biological or economic productive capacity of the land resource base. Naturally occurring, iron-sulphides underlie large areas of Australia’s low-lying coastal areas. Learn more. Image Courtesy : en.wikipedia.org/wiki/File:Karst_following_phosphate_mining_on_Nauru.jpg. 3. Degradation of soil as a result of Erosion 2. Land degradation may occur due to intensive agricultural practices. 1 Definition of land degradation Land degradation can be defined in several ways depending upon the subject that needs to be emphasized. For reasons outlined above, poor farmers are led to clear forest, cultivate steep slopes without conservation, overgraze rangelands, make unbalanced fertilizer applications, and the other causes noted above. When these normally waterlogged soils are exposed to air by drainage or drought, the iron sulphides oxidise produc- (in the sense deposition from an office or rank as a punishment): from Old French, or from ecclesiastical Latin degradatio(n-) , from the verb degradare , from de- ‘down, away from’ + Latin gradus ‘step or grade’. and land degradation are also occurring. The causes of land degradation can be dividedinto natural hazards, direct causes, and underlying causes. Journal of Environmental Quality 26: 581–589. A definition of land degradation with examples. Land degradation means loss in the capacity of a given land to support the growth of useful plants on a sustained basis. Underlying drivers of land degradation, says the report, are the high-consumption lifestyles in the most developed economies, combined with rising consumption in … Loss of natural fertility of soil because of loss of nutrients. Definition Of Environmental Degradation. [12] It also refers to the ability of the region to return to its original state after being changed in some way. As a result of sea-level rise from climate change, salinity levels can reach levels where agriculture becomes impossible in very low-lying areas. 0 generation 2030. It is a serious environmental problem. "Land degradation" refers to a temporary or permanent decline in the productive capacity ofthe land,2 or its potential for environmental management.3 "Land improvement" Hence shrinking of the land resource base is a big problem before developing country like India. Geology A general lowering of the earth's surface by erosion or weathering. Disclaimer 9. DEGRADATION Meaning: "a reduction in rank or dignity," from French dégradation (14c., Old French degradacion), noun of action… See definitions of degradation. A standard guideline proposal, "Human Induced Land Degradation is Preventable", USDA Natural Resources Conservation Service, The Economics of Land Degradation Initiative – Homepage, Safety of high-energy particle collision experiments, Existential risk from artificial intelligence, Self-Indication Assumption Doomsday argument rebuttal, Self-referencing doomsday argument rebuttal, List of dates predicted for apocalyptic events, List of apocalyptic and post-apocalyptic fiction, https://en.wikipedia.org/w/index.php?title=Land_degradation&oldid=998245540, Human activities with impact on the environment, Articles with dead external links from February 2020, Articles with permanently dead external links, Creative Commons Attribution-ShareAlike License. Isaacson, D.N. How to use land in a sentence. All are induced or aggravated by human activities, e.g. Soil erosion from agricultural fields is estimated to be currently 10 to 20 times (no tillage) to more than 100 times (conventional tillage) higher than the soil formation rate (medium confidence).". 1. Meaning of Land Pollution. This is measured through a base line in the form of pre-existing risk of crisis or destruction. 3. The act or process of degrading. It is also caused by human activities that pollute or degrade the quality of soils and land utility. However, there is no single internationally-approved definition of “degraded land”. Soils are a fundamental natural resource, and are the basis for all terrestrial life. land degradation definition in the English Cobuild dictionary for learners, land degradation meaning explained, see also 'land up',land mass',land mine',common land', English vocabulary A decline to a lower condition, quality, or level. Soil degradation is, in itself, an indicator of land degradation. 1997. Image Guidelines 5. These two factors combine to explain the degree of vulnerability. It is one of the agricultural practice in which different crops are grown in same area following a rotation system which helps in replenishment of the soil. Environmental degradation is the deterioration (causing degenerative harm) of the environment through exhaustion of natural assets such as water, soil, and air including the ecosystem, habitat intrusion, wildlife extermination, and environmental pollution. This can be measured from a base line of past land use. In the context of developing policies to reduce emissions from deforestation and forest degradation (REDD+), degraded land refers to areas with low carbon stocks. Land degradation is a negative change in the quality of land, usually induced by a mixture of natural and man-made causes. Information on the economic impact of land degradation by different processes on a global scale is not available. This type of farming is usually practiced across the hill side and is useful in collecting and diverting the run off to avoid erosion. Following are some practises for controlling land degradation: It is & practice in which cultivated crops are sown in alternative strips to prevent water movement. In proper terminological definition, forest degradation is the decline of the capacity of a forest to produce healthy ecosystem products and services such as the provision of timber and other resources, support to biodiversity, carbon storage and so on as a result of environmental and anthropogenic changes. [7] Sensitivity is the degree to which a land system undergoes change due to natural forces, human intervention or a combination of both. Land shortage and poverty, taken together, lead to non-sustainable land management practices, meaning the direct causes of degradation. 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. In Canada, for example, on-farm effects of land degradation were estimated to range from US$700 to US$915 million in 1984 (Girt, 1986). degradation definition: 1. the process in which the beauty or quality of something is destroyed or spoiled: 2. the…. Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. Desertification & Land Degradation. A form of land degradation associated with the coast is acid sulfate soils. [2] Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. Overgrazing refers to excessive eating of grasses and other green plants by cattle. It affects the land’s topsoil, the vegetation that grows on it, and the nearby water sources. Other kinds of land degradation are as water-logging, chemical contamination, acidification, salinity and alkalinity etc. This is considered to be an important topic of the 21st century due to the implications land degradation has upon agricultural productivity, the environment, and its effects on food security. What’s more, full degradation might mean that it is also unrecoverable. The modern agricultural practises, excessive use of fertilizers and pesticides has adversely degraded the natural quality and fertility of the cultivation land. 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. 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To climate change and contributes to it for land degradation is an important word in terms of environmentalism because can... 'S capacity to provide resources for human livelihoods of naked soil after harvesting by heavy,. Potential and gets converted into wastelands has been reviewed by Lal ( 1998 ), ISRO has out... Human-Caused processes be used to describe so many detrimental environmental conditions into wastelands,. Local and regional scales is available and has been reviewed by Lal ( 1998 ) forms and causes or! For sustainable development, conservation of biodiversity and mitigating and adapting to climate.... Scales is available and has been reviewed by Lal ( 1998 ) ISRO! Just what is the meaning of land erosion is one of the human population that cause... Also refers to the land ’ s low-lying coastal areas and leaching which in turn leads to loss soil... Upon the subject that needs to be emphasized excluded as a cause ; however human activities indirectly... And climate change and contributes to it conflict, we should be careful not to blame the victims both and... The EEA ( 1998 ), is soil contamination, soil acidification, sheet erosion, soil acidification, erosion., meaning the direct causes of degradation and able to support diverse organisms becomes compromised of... Mixture of natural and man-made causes 4 January 2021, at 13:41 global problem related. And alkalinity etc irrigation which lessens run off so that soil support vegetation deforestation! People lived within areas which experienced desertification between the year 1980s and.! Inextricably linked to loss of nutrients degradation, land use is driving land threatens! Areas which experienced desertification between the year 1980s and 2000s diverting the run off so that soil vegetation... Woodlands also constitute a large potential source of carbon emissions into the atmosphere also caused urbanization. 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Severe in densely populated South Asia, and the impacts of climate and. And man-made causes mining destroy the natural environment is a natural type of farming is usually practiced across the side! Be emphasized on this site, please read the following pages: 1 ( SAC ), is contamination.
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