LAND USE CHANGES BETWEEN 1972 AND 2020 IN THE BENI SAF REGION (ALGERIA)* PUBLISHEDS. M. MERIOUA 1, A. SELADJI 2 ,Maamar MEGHRAOUI 2 M. AMARA3,4, M. REGAGBA 2 Noury BENABADJI4 1 University center of Naama 45000 Algeria 2 National Institute of Forestry Research station of Tlemcen 13 000 Algeria 3 University of Ain Temouchent 46000 Algeria 4Laboratory of Ecology and Management of Natural Ecosystems, University of Tlemcen, Algeria email@example.com
The protection of vegetation of any region needs an advanced diagnosis to identify the nature and the causes of degradation. Beni Saf, an Algerian region situated in the North West has been subject to a degradation of its ecosystems.The ecosystem is known for its diversity, biogeography and typical Mediterranean climate. The objective of our work is to identify the natural and anthropogenic processes which modify the structure and the use of the land. Based on GIS analysis, the vegetation’s spatial and temporal change at two points in time (1972 and 2020) were studied. The analyses allowed us to see major changes within 48 years. The comparative study showed an expansion of woods replacing bushes. The surface of the latter changed from 2814 hectares in 1972 to 1530 hectares in 2020. It decreased by about 21%. Besides, there was an extension of cereal culture of 2069 hectares in 1972 to 1959 hectares in 2020 with a decrease of 2%.Indeed, a spatial and temporal development plan of the forest and agricultural territory of the study area will be proposed in order to suggest a development of the territory in the future; In order to reach the harmonious balance of the use of the space which is partly based on the aptitude of the grounds.
Vegetation; Land use; Beni Saf; Anthropic; diachronic; GIS