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Detecting land use/land cover changes and forest degradation: A case study of the lower Soummam valley, northern Algeria

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  • Megdouda Smail

    (Conservation, Management and Improvement of Forest Ecosystems Laboratory, National Higher Agronomic School, El Harrach, Algeria)

  • Zoubir Boubaker

    (Conservation, Management and Improvement of Forest Ecosystems Laboratory, National Higher Agronomic School, El Harrach, Algeria)

  • Mohamed Sbabdji

    (National Institute of Forest Research (INRF), El Hammamet, Algeria)

  • Habib Mouaissa

    (Agricultural Sciences Department, Faculty of Natural Sciences and Life, Ziane Achour University of Djelfa, Djelfa, Algeria)

  • Bimare Kombate

    (Botany and Plant Ecology Laboratory, Department of Botany, Faculty of Sciences, University of Lomé, Lomé, Togo)

Abstract

The environment is characterised by subtle and major mutations that cause changes in land use/land cover. Analysis of its dynamics and identification of vulnerable areas are critical to maintaining ecosystem services. The aim of this research is to quantify and qualify land cover dynamics over a 30-year period. It will also highlight forest degradation from a supervised classification of Landsat satellite imagery (L5 TM1987, L7 ETM+ 2000, and L8 OLI/TIRS 2019). The dynamics of land use/land cover were investigated by a maximum likelihood approach using geographic information system (GIS) and remote sensing (RS). Six major land use and land cover (LULC) types were mapped (build-up, agriculture, forest, clearing, matorral and olive cultivation). The classification reports made it possible to assess a reduction in forest cover (from 14 470.11 ha to 5 203.26 ha) and an increase in buildings (from 6 033.69 ha to 9 515.61 ha), and agricultural land (from 9 517.59 ha to 12 338.19 ha). The results were validated by a kappa coefficient of 0.93, 0.91, and 0.96, which showed that the model had successfully predicted LULC changes. We anticipate that the results will provide a basis for decision-making as well as a starting point for further in-depth studies in sustainable management and development of natural resources in the study region.

Suggested Citation

  • Megdouda Smail & Zoubir Boubaker & Mohamed Sbabdji & Habib Mouaissa & Bimare Kombate, 2024. "Detecting land use/land cover changes and forest degradation: A case study of the lower Soummam valley, northern Algeria," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 70(3), pages 122-134.
    • Handle: RePEc:caa:jnljfs:v:70:y:2024:i:3:id:86-2023-jfs
    DOI: 10.17221/86/2023-JFS
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    References listed on IDEAS

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    1. Fabio Recanatesi & Andrea Petroselli, 2020. "Land Cover Change and Flood Risk in a Peri-Urban Environment of the Metropolitan Area of Rome (Italy)," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(14), pages 4399-4413, November.
    2. Yaolong Zhao & Ke Zhang & Yingchun Fu & Hong Zhang, 2012. "Examining Land-Use/Land-Cover Change in the Lake Dianchi Watershed of the Yunnan-Guizhou Plateau of Southwest China with Remote Sensing and GIS Techniques: 1974–2008," IJERPH, MDPI, vol. 9(11), pages 1-23, October.
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