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Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria

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Department of Landscape Protection and Environmental Geography, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary
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Department of Geography and Regional Planning, University of Larbi Ben M’hidi Oum El Bouaghi, Oum el Bouaghi 04000, Algeria
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Department of Natural Geography and Geoinformatics, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary
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Department of Social Geography and Regional Development, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary
*
Author to whom correspondence should be addressed.
Academic Editor: Stephen Morse
Sustainability 2021, 13(14), 7953; https://doi.org/10.3390/su13147953
Received: 1 June 2021 / Revised: 28 June 2021 / Accepted: 7 July 2021 / Published: 16 July 2021
(This article belongs to the Section Environmental Sustainability and Applications)
Green walls and green dams are increasingly being considered as part of many national and international desertification initiatives. This paper studies the spatiotemporal evolution of the green dam in the Moudjbara region (Djelfa Province, Algeria), from 1972 to 2019, by using Landsat imagery, Land Change Modeler, and OpenLand package. The future evolution of pine plantations, for the year 2029, was also forecasted, based on an anthropogenic scenario (i.e., anthropogenic pressure is the main driver of the green dam destruction). Our findings revealed that the green dam project was successful for a few years, but, after that, pine plantations deteriorated significantly, due to forest harvesting, livestock overgrazing, and the proliferation of the pine caterpillar processionary, which destroyed most of the reforestation. Land change modeler predicted a huge degradation of pine plantations for the year 2029, and if the deforestation continues at the same rate, the green dam in the Moudjbara region will disappear during the next few decades. Being aware of this threat, the Algerian authorities are now planning to reforest more than 1.2 million ha under the latest rural renewal policy, by introducing new principles related to sustainable development, fighting desertification, and climate change adaptation. We strongly recommend moving away from the singular tree planting focus, to diversifying desertification control methods. View Full-Text
Keywords: Aleppo pine; desertification; green dam; green walls; land degradation Aleppo pine; desertification; green dam; green walls; land degradation
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MDPI and ACS Style

Benhizia, R.; Kouba, Y.; Szabó, G.; Négyesi, G.; Ata, B. Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria. Sustainability 2021, 13, 7953. https://doi.org/10.3390/su13147953

AMA Style

Benhizia R, Kouba Y, Szabó G, Négyesi G, Ata B. Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria. Sustainability. 2021; 13(14):7953. https://doi.org/10.3390/su13147953

Chicago/Turabian Style

Benhizia, Ramzi, Yacine Kouba, György Szabó, Gábor Négyesi, and Behnam Ata. 2021. "Monitoring the Spatiotemporal Evolution of the Green Dam in Djelfa Province, Algeria" Sustainability 13, no. 14: 7953. https://doi.org/10.3390/su13147953

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