Use of remote sensing techniques of geographic information systems in the estimation of the phenomenon of desertification in the district in the province of Nineveh Baaj

Abstract

The problem of desertification among the most important contemporary environmental problems, as the continued depletion of vegetation leads to a deepening of the deterioration of agricultural land and productivity, as a result of sand encroachment upon, especially in the plain areas, and Soil erosion in upland areas, and thus the emergence of the phenomenon of desertification and drought, which is one of the most important problems that hinder environmental plans and strategies for agricultural development, as the climatic factors and human activities play a key role in the spread of the phenomena of desertification and drought, exacerbated. Y is the phenomenon of desertification phenomena task that must be studied and knowledge of its negative effects on the environment in arid and semi-arid, and increasingly dangerous down the amounts of rainfall in these areas and the degradation of natural pastures, and the increased space areas affected by the change and the emergence and the expansion of the sand dunes, which are Advanced Face of desertification