article id 24056,
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Complex remote sensing-assisted forest surveys - Research article
Highlights:
Argan agro-sylvo-pastoral system is a unique agro-ecosystem of arid land in the world; Climate variability, drought and vegetation dynamic are assessed in the GIAHS site using a combination of remote sensing and field investigation; Findings highlights a significant decrease in agricultural and woodland cover and consistent increase in drought; Resilience implications are discussed to inform socio-economic actors.
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Agroforestry systems are critical for building resilience to socio-environmental shocks, especially in drought-prone arid and semi-arid areas. This study the ecological impact of drought on the Mediterranean Globally Important Agricultural Heritage Systems (GIAHS) site of Ait Saoub-Ait Mansour in Morocco. Machine learning-based random forest (RF) classification and change detection were used to explore the change in land use classes such as built-up areas, agricultural areas, woodland, and bare land. Spatiotemporal analysis of temperature, precipitation, and Precipitation-Evapotranspiration Index (SPEI) is performed using Mann-Kendall and Sen’s slope test for the period 1983–2020. Additionally, the Normalised Difference Vegetation Index (NDVI) is analyzed from 2000 to 2020 for some specified crop species such as Argan tree (Argania spinosa (L.) Skeels), cereal, palm tree, and cereal mixed. The results show a decrease in the area of agricultural and woodland and a consistent increase in drought (decrease in SPEI-6 and SPEI-12) over time. Annual and seasonal trends in NDVI for Argan tree, cereal, palm tree, and mixed cereal are negative. These findings provide consistent evidence of the ongoing degradation of this ecosystem and the changing climate. The resilience implications are discussed to inform socio-economic actors and stakeholders.
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Meskour,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco
https://orcid.org/0009-0003-1698-8949
E-mail:
brahim.meskour@edu.uiz.ac.ma
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Labbaci,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco; Geosciences and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco
E-mail:
a.labbaci@uiz.ac.ma
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Ait El Kadi,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco
E-mail:
moussa.aitelkadi@edu.uiz.ac.ma
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Hakam,
Center for Remote Sensing Applications, Mohammed VI Polytechnic University, 43150, Ben-Guerir, Morocco
E-mail:
oualid.hakam@um6p.ma
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Ongoma,
International Water Research Institute, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco
E-mail:
victor.ongoma@um6p.ma
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Hssaisoune,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco; Faculty of Applied Sciences, Ibn Zohr University, B.O. 6146 Azrou District, 86153, Ait Melloul, Morocco; International Water Research Institute, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco
https://orcid.org/0000-0002-9388-3804
E-mail:
m.hssaisoune@uiz.ac.ma
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Tairi,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco
https://orcid.org/0009-0000-5612-4123
E-mail:
a.tairi@uiz.ac.ma
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El Hafyani,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco
E-mail:
m.elhafyani@uiz.ac.ma
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Bouchaou,
Applied Geology and Geo-Environment Laboratory, Faculty of Sciences, Ibn Zohr University, Agadir, 80035, Morocco; International Water Research Institute, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco
E-mail:
l.bouchaou@uiz.ac.ma