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Land degradation will remain an important global issue for the 21st century because of its adverse impact on agronomic productivity, the environment, and its effect on food security and the quality of life. Productivity impacts of land degradation are due to a decline in land quality on site where. Land degradation is caused by multiple forces, including extreme weather conditions particularly drought, and human activities that pollute or degrade the quality of soils and land utility negatively affecting food production, livelihoods, and the production and provision of other ecosystem goods. 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 assessment of land degradation and restoration is to cover the global status of and trends in land degradation, by region and land cover type; the effect of degradation on biodiversity values, ecosystem services and human wellbeing; and the state of knowledge, by region and land cover type, of ecosystem restoration extent and options. 5 Foreword by Zhang Jianlong, Minister of State Forestry Administration Peoples Republic of China Land degradation poses a major threat to global sustainable development. land use is driving land degradation. The result is a loss of land productivity with impacts on livelihoods and the economy. This section describes land degradation trends in Kenya as an introduction to the following pairs of satellite images that show this degradation on the ground. The concept of land degradation originates from soil degradation and it is oft en used as a synonym for soil degradation. It is evident that if soil is degraded it has huge impacts on both the land and landscape, because soil degradation prevents or impedes plant growth. Land 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. , rainfed arable, irrigation, forests), its farming systems (e. Land degradation is, usually, the result of complex interrelationships between biophysical and socioeconomic issues which affect many people and their land, specially in Land Degradation Development is an international journal which seeks to promote rational study of the recognition monitoring control and rehabilitation of degradation in terrestrial environments. UNESCO EOLSS SAMPLE CHAPTERS LAND USE, LAND COVER AND SOIL SCIENCES Vol. III HumanInduced Land Degradation Donald Gabriels, Wim M. Cornelis Encyclopedia of Life Support Systems (EOLSS) Land degradation is a humaninduced or natural process which negatively affects the Chapter 5: Land degradation and restoration associated with changes in ecosystem services and functions, and human wellbeing and good quality of life. 3bildrChapter 6: first review phase. Chapter 6: Responses to avoid land degradation and restore degraded land. Land degradation is the undermining of the quality of soil as a result of human behavior or severe weather conditions. A form of land degradation that occurs when arable land becomes desert is known as desertification. Land Degradation Development is an international journal which seeks to promote rational study of the recognition, monitoring, control and rehabilitation of degradation in. Land degradation focal area of the GEF SGP is informed by the previous activities of the millennium ecosystems assessments and specifically targets directly the realization of the United Nations Convention to Combat Desertification (UNCCD). Indirectly, this focal area also helps in the realization of the Non legal binding instrument of the convention on all forests types of the United Nations. Land Degradation Development is an international journal which seeks to promote rational study of the recognition, monitoring, control and rehabilitation of degradation in terrestrial environments. Land degradation can be defined in several ways depending upon the subject that needs to be emphasized. 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. 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 specified temporal and spatial scales and ecosystems. Land degradation From Wikipedia, the free encyclopedia Serious land degradation in Nauru after the depletion of the phosphate cover through mining Land degradation is a concept in which the value of the biophysical environment is affected by one or more combination of humaninduced processes acting upon the land. [1 The poor land users are caught in the vicious cycle of land degradation; they are trapped in poverty since they fail to invest in land improvement strategies that could provide them with increased incomes. THE ECONOMICS OF LAND DEGRADATION Benefits of Action Outweigh the Costs A complementary report to the ELD Initiative The Economics of Land Degradation in Africa. Land is a vital resource enabling the production of food, the preservation of biodiversity, facilitating the natural management of water systems and acting as a carbon store. Land degradation is a process in which the value of the biophysical environment is affected by a combination of humaninduced processes acting upon the land. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable. Land Degradation Development is an international journal which seeks to promote rational study of the recognition, monitoring, control and rehabilitation of degradation in. The land degradation surrounding the city of Beijing China has reached an extreme level of pollution, and water is no longer safe to drink. Land degradation happens all over the world, but is a particular problem in parts of Africa and South Africa. Its consequences can be devastating for people and Land degradation. To install click the Add extension button. The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time. Land degradation is defined by the UN Environment Programme as a longterm loss of ecosystem function and services, caused by disturbances from which the system cannot recover unaided (Dent 2007, p. Land degradation is a process in which the value of the biophysical environment is affected by a combination of humaninduced processes acting upon the land. Land Degradation Development is an international journal which seeks to promote rational study of the recognition, monitoring, control and rehabilitation of degradation in. published definitions of land degradation. The emphasis on land, rather than soil, broadens the focus to include natural resources, such as climate, water, landforms and vegetation. The productivity of grassland and forest resources, in addition to that of cropland, is embodied in UNITED NATIONS, Aug 3 2018 (IPS) Sustainability, stability, and securitythe three overlapping issues are an increasing concern among many especially in Africa where land degradation is displacing citizens and livelihoods. African ministers and United Nations officials convened at the U. The following is a list of the most cited articles based on citations published in the last three years, according to CrossRef. Yet, globally, onethird of the Earths land surface is degraded, affecting more than 2. 6 billion people in more than 100 countries. When land is degraded, it cannot support all the processes that depend on it. Land degradation in the Sahel is found to be characterised by soil degradation, mainly due to wind erosion. This is caused by climatic factors such as drought and diminishing rainfall, compounded by anthropogenic factors, including population growth, agricultural intensification and overgrazing. Land degradation is the major consequences of direct interference of human activities in the natural phenomenon. Loss of natural fertility of soil because of loss of nutrients. National and local land degradation studies: indicators and monitoring There is a plethora of methods, indicators and recent studies concerning specific aspects. Extent and Type of Degraded Land Land degradation is a global issue for a number of reasons A form of land degradation associated with the coast is acid sulfate soils. Naturally occurring, ironsulphides underlie large areas of Australias lowlying coastal areas. land degradation, greater potential of pollution of water courses and increased sedimentation, driving future flooding. The lack of infiltration means base flows of rivers are also likely to 4 land degradation assessment in drylands (lada) project The LADA project was a response to a worldwide shortage of information about global land degradation. Land degradation and desertification, largely due to deforestation and unsustainable land use, are amongst the most pressing problems facing the world today. Without a longterm solution to this issue, the world risks increasing food shortages, rising poverty, and increased migration; all One of the most obvious direct causes of land degradation is the mismatch between land potential and actual land use (as different from land cover and including information on land management and inputs). SDG 15 calls for the protection, restoration and sustainable management of landbased ecosystems. 3 specifically aims to achieve a Land Degradation Neutral World by. Land degradation is a universal problem; it has cumulative effects at regional and global scales. This paper, based on the 500meter resolution satellite image (band 17), which was acquired in. Land degradation occurs when the crucial ecosystem processes are disturbed in a negative way due to use of land, causing lost of vegetation cover, and soil fertility affecting the main processes and functions of the ecosystems. Land degradation is a process in which the value of the biophysical environment is affected by one or more combination of humaninduced processes acting upon the land. [1 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. This book contains selected contributions from the Sixth Meeting of the International Geographical Union's Commission on Land Degradation and Desertification, held. Land degradation is a process in which the value of the physical environment is affected by a combination of humaninduced processes acting upon the land..
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