التمثيل الخرائطي للغطاء الارضي واستعمالات الارض في قضاء الناصرية باستخدام التقنيات الجغرافية == Cartographic Land Cover And Land Use Representation In The District Of Nasiriya Using Geo - Technologies
Author name:
سرى باسم كاظم
Supervisor name:
رحيم حميد عبد ثامر العبدان
General topic:
Geography
Specific topic:
Natural Geography
Degree:
Master
University:
University of Thi-Qar - College Of Literature - Department Of Geography
Language:
Arabic
University location:
Dhi Qar
First pages:
10T1594 - p.pdf
Abstract:
The land is considered one of the environmental system components which is responsible for providing the means of life for all living beings and different forms of human activities , therefore the informationsabout it are the most important ones to be provided for monitoring the quality of that environment.Land cover is the physical and biological components of the land. Therefore, the studying of the land cover is considered one of the most important means for detection and following the changes in the land and its uses. This study analyses the changes - in time and place - of different classes of land use and land cover of Al - nasiriyah district, which represents the study area and the largest district of the province of Dhi Qar. It comprises five administrative units ( Ur, Islah, Batha,Said dkeel and city center) and characterized by being a plane territory located within the Alluvial plain, the are many intermingled - natural and man made - factors which led to dramatic changes in the area including the draining out of the marshes and the swamps by the former government which led - for example - to an increment in the area of barren land class on behave of the wetland class. Land use\land cover has been studied for the district of Al - nasiriyah to reach the goals of the study by using the geographical information systems and remote sensing which utilizes the computer software (ERDAS IMAGE 2014) and (GIS ARC MAP 10.2.1) that analyzed the satellite images scanned by landsat 5, 7 and 8, the land use\ land cover of the mentioned area has been monitored through thirty years by considering eight images which represent the winter and summer for 1985, 1993, 2003 and 2015 to detect the changes among those years on one hand and in each year on the other, also the topographic maps has been used to assist the quest. There were three steps to do so represented firstly by supervised classification of the study area depending on Anderson's classification and six classes were obtained (agricultural, urban, wetland, grassland, barren and water class) ,secondly by visual analysis of the maps obtained from the first step in addition to utilize the land use\cover indices (mineral composite, normalized difference vegetation index and normalized difference waterindex) which aid in clearfying the overlapping in some classes, and thirdly was detection of the changes in the mentioned classes though the taken period. the study produced a detailed data base of the area and concluded the randomness in distribution of urban class ,damaging the grassland by overgrazing ,and the presence of wetland within the area can be utilized for tourism , among others
