تغيرات الغطاء الارضي واستخدام الارض لمنطفة شرقي الغراف بأستعمال تقنيات الاستشعار عن بعد ونظم المعلومات الجغرافيةللمدة 1977- 2016
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2017-02-05
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Abstract
The changes in land cover and land uses require monitoring and detection of these changes
and their signature on detection maps. The use of remote sensing techniques is the best way to
detect this change and to know the direction of change and to predict the changes that may
occur .The study aim is to observe the terrestrial cover changes and land uses for the period
1977-2016 of the study area that located between latitude circles (30◦ 44 and 30◦ 59) north,
longitude arcs (46◦ 13 and 46◦ 49) east UTM; WGS 84, the study area located in the eastern side
of Thi-Qar province, the administrative border of Al-Dawaiyah area / Al-Shatara city and the
administrative border of Al-Islah area / Al-Nasiriyah town, by use Landsat satellites and
explain it by use the visual explanation, and represented it in schedules according to the suitable
ecological classification of the study area, and represented it in high proficiency maps to
establish geographic information base and put on maps called the change discovery maps, and
compare it with to reach to the best system supervised and unsupervised to discover the change
and establish geographic information base by uses GIS to save the support information that can
be renewed and followed, by uses three systems ,first by Erdasimagine2014 change detection
tool, and arc Gis 10.2 by overlay tools like union eras & intersect .finely subtract swath affix
from precedent to know true results.
In addition, studying the natural characteristics of structure, surface and the water sources
through branches of the only feeder to the marshes of the study area which is Al-Gharraf river.
Marshes of the study area are affected directly and carried its qualities. Also, studying the
climate with its elements, soil, the natural plant showed in objectivity maps and old human
energetic represented by agriculture activity, rural settlement and villages, ruins sites supported
by maps of its locations and measurements which is classified according to the ecological
classification that is proceeded in the study.