دراسة تغير الغطاء الأرضي في ناحية القادسية باستعمال نظم المعلومات الجغرافية Arc GIS

الملخص EN

This research aims at studying the change of land cover in Qadisiyah district that belongs to Al-Manathirah territory in Najaf province during the years 2000/2018 throughout field survey, aerial photos and the use of geographic information systems in putting a classification aspects for the land cover by the way of making Iso cluster unsupervised classification for the aerial photos , where the first photo was taken in 10/9/2000 from the US satellite Land Sat 7 by ETM and a spacial resolution of 30 meters, while the second photo was taken in 10/9/2018 from Land Sat 8 satellite, which is connected to the TIRS with a spatial resolution of 15 meters.

Six main categories of spatial phenomena were found in the studied areas .We find a change in the ratios where in the year 2000 the agricultural areas were 45.35% of the total area, while it was 37.19% for the year 2018.

The second category the abandoned agricultural areas has a ratio of 16.85% in the year 2018 where it was about 13.97 year 2000 , The number of residential and construction areas increased to 7.81% where it was 1.77% in 2000, and the general coverage of water and rivers areas was almost stable , as for the valleys which was decreased in 2018 to 10.14% where it was about 16.32%, and finally the desert land, which rose to 25.49% in 2018 where it was 20.08% in 2000.

This change was then represented for the land cover of the study area by digital maps showing that change