Food, Agriculture, andtheEnvironmentDiscussion Paper 14 Land Degradation in the Developing World: Implications for Food, Agriculture, and the Environment to 2020 Sara J. Scherr andSatya Yadav InternationalFood Policy Research Institute 1200 Seventeenth Street, N.W. Regional "Hot Spots" and "Bright Spots" … The basic factors causing soil erosion-induced degradation are wind and water erosion.
Washington, D.C. 20036-3006U.S.A. Susceptibilities are scored from zero to three and then rated to give an erosion potential of nil, low, moderate or high. Soil degradation is a process in which the value of the land and its biophysical environment is affected by a combination of human actions and non-natural phenomenons. 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. The most authoritative estimates of the extent of land degradation are contained in a report on South Asia prepared by UNDP, UNEP and FAO (Land Degradation in South Asia: its severity, causes and effects upon the people, Rome, FAO, 1994).Water erosion is the most common form of degradation in the area, affecting 25 percent of agricultural land. May 1996
Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires.
Healthy soils are vital to creating ample food production. Potential land degradation in North Central is mainly from water erosion, including sheet, gully, tunnel and deposition, while wind erosion types include sheet and deposition.
Land degradation has accelerated during the 20th century due to increasing and combined pressures of agricultural and livestock production (over-cultivation, overgrazing, forest conversion), urbanization, deforestation, and extreme weather events such as droughts and coastal surges which salinate land. May 1996. Although agriculture is not the sole cause of soil degradation, poor farming practices are known to cause a considerable decline in in the quality of soil. Desertification, is a form of land degradation, by which fertile land becomes desert. Restoration of agricultural land is important for sustainability of agriculture and environment. Susceptibilities are scored from zero to three and then rated to give an erosion potential of nil, low, moderate or high. about agriculture and land degradation from a wide range of sources and in doing so it is intended that it contributes to the development of a broad policy framework for a sustainable agricultural sector.
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. The health of soil is a primary concern to farmers and the global community whose livelihoods depend on well managed agriculture that starts with the dirt beneath our feet. Contents Foreword I. Cropland expansion and intensification of agriculture are among the drivers of land degradation processes that can lead to desertification. Washington, D.C. 20036-3006U.S.A. Introduction 2. understand how agriculture affects land quality, what risks land degradation poses for agricultural production and to what extent a change in agricultural practices can reverse the trend. With increasing human population, trees around the world are cleared everyday to make way for agriculture in fertile lands to meet the increasing food demand. Soil Degradation.
Land degradation and deforestation Land degradation and deforestation .