Diachronic analysis of the occupation of the steppe area of the department of Sidi Bel Abbes (Western Algeria)

8th IGRSM International Conference and Exhibition on Geospatial & Remote Sensing

地球科学;计算机科学

Hellal, B.^1 ; Ayache, A.^2 ; Ayad, N.^2 ; Hellal, T.^2

Laboratory of Geomatics and Sustainable Development, University Ibn Khaldoun, Tiaret, Algeria^1

Faculty of Natural Sciences and Life, University Djillali Liabes, Sidi Bel Abbes, Algeria^2

关键词: Agricultural land;    Dense vegetation;    Landsat TM 5;    Management tool;    Remote sensing maps;    Spatial resolution;    Supervised classification;    Vegetation index;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/37/1/012079/pdf
DOI  :  10.1088/1755-1315/37/1/012079

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Modes of occupation of the soil of the steppe area of the department of Sidi Bel Abbes (Western Algeria) know lots of mutations during the period 1987/2013; compromising the future of pastoral activity. This dissection based on supervised classification TSAVI values (Transformed Soil Adjusted Vegetation Index) using images of remote sensing of average spatial resolution of type Landsat-TM 5 and 8. The determination of the state of occupation of the ground and validation of remote sensing map shows that the status of the halophytic/psammophytic steppes and the Matorrals are detected in 38.38 % and 55,71 % of cases, respectively. On the other hand, the steppes chamaephytic mark -9,81 % regression only, agricultural land -24,51 %, and -46,24 % dense vegetation are correctly mapped. The sensing medium resolution is therefore, in the light of these figures, a management tool of the steppe field relevant and effective, which, in addition, allows enriching the field for a proper plan for the fight against desertification.