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|a The study tagged (spatial analysis of soil and its impact on the uses of agricultural land in terms of the Tigris), addressed through the study of analytical detection of the impact of geographical factors in the spatial variation of soil types and kinds and distribution of agricultural land uses in the study area . Information was gathered from sources and data pertaining to the study, has come at the stages of the clerical work. And the data collection phase of the study area, particularly those related to the spatial characteristics of natural and climatic conditions as well as human factors, and rely on records of relevant departments, to complete the information received in the laboratory phase of work , through analysis of soil samples of the study area, including all agricultural provinces smallest spatial units, as well as promote information work in the field through observation, questionnaire, and then turned the information and data to maps and graphs to illustrate better information . The study included four classes are: Chapter I: conceptual framework for the study, which included saying the exact problem of the study and the premise and objectives, location, and within the study area, and the definition of concepts relating to soil, land use and the identification of previous studies related to the subject and the study area. Chapter II: The chapter discusses the role of geographical factors in shaping and influencing the soil characteristics in the study area came Bembgesin allocated first to examine the natural factors, which included geological study area, surface characteristics, abilities change, water resources, natural vegetation, while the second topic dealt with the human factors of through the human role in changing some Kaharatp soil characteristics, fertilization and irrigation methods . Chapter III: The study addressed the most important natural characteristics of the soil of the study area based on the facts of scientific data for analysis laboratory and field seen in the description of the phenomenon came Bembgesin, the first devoted to the study are the physical characteristics of the study area included soil depth, Alencjp, density, porosity and moisture, construction, color, and the second, the addressing the chemical properties as discussed, salinity, and acidity (PH), and if the organic matter content of the soil compounds, gypsum and lime .
|a Chapter IV: Chapter came in the form of Mbgesin one on the distribution of land uses of agricultural production and plant care classification of the main agricultural crops and the relative distribution and spatial, and have touched on the production of animal showing the most important animals that are raised in the study area and their relative distribution, and the second topic dealt with the appropriate assessment and classification of land Terpha According to vulnerability productivity . The study to determine the effect of natural factors and differences in soil formation and its impact on physical and chemical characteristics in the study area, as well as the role of human factors in changing those characteristics, and the withdrawal of all on the distribution of land use, agricultural and spatially differentiated, were divided in the appropriate land study into five categories (appropriate high, moderately suitable, suitable weak, inadequate temporary, inadequate permanently) and classified according to where the soil susceptibility to five levels of productivity according to the parameters established by the U.S. Department of Agriculture, was the most important determinants in the study area and then placed Conclusions and recommendations suitable for distribution and use is closest to the model of agricultural land in the study area .
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