2018
DOI: 10.4236/oje.2018.88026
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Structure, Tree Growth and Dynamics of <I>Cedrus atlantica</I> Manetti Forests in Theniet El Had National Park (N-W Algeria)

Abstract: In North Africa, Cedrus atlantica forests are in decline, following decades of anthropogenic pressure and repeated drought events. Mixed C. atlantica-Quercus ilex stands located in the Theniet El Had National Park (northwestern Algeria) were considered in the present study. Based on a stratified sampling, six temporary plots were established to describe structure (species composition, density, total height, diameter and basal area) and radial growth in relation to type of stand (pure and mixed), using a dendro… Show more

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Cited by 11 publications
(8 citation statements)
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“…On the other hand, the average stand density recorded across the stands, at 480 trees/ha, is higher than that reported by Sarmoum and al. (2018), which was 203 trees/ha, and that reported by Bouazza and al.…”
Section: Discussioncontrasting
confidence: 76%
“…On the other hand, the average stand density recorded across the stands, at 480 trees/ha, is higher than that reported by Sarmoum and al. (2018), which was 203 trees/ha, and that reported by Bouazza and al.…”
Section: Discussioncontrasting
confidence: 76%
“…In the PRCSA and PRCSB the basal area of the species is 36.47 and 38.49 m 2 •ha -1 respectively (Table 1). These values are higher compared to the value of C. libani basal area referred for stands in Tannourine Cedar Forest Reserve in Lebanon (Bassil et al 2018), but they are lower than the basal area of pure C. atlantica forests in Theniet El Had National Park in Algeria (Sarmoum et al 2018) and the values of C. atlantica basal area of most closed stands in the Moroccan Middle Atlas forests (Linares et al 2011). In Cyprus, two groups of pure structural types are formed regarding basal area.…”
Section: Discussionmentioning
confidence: 77%
“…Le phénomène diminue avec l'altitude. Les faibles fréquences enregistrées dans les deux premières classes (altitude < 1 400 m) semblent liées à la structure du peuplement forestier car le cèdre est faiblement représenté dans cette tranche altitudinale (Sarmoum et al, 2018).…”
Section: Variables Mésologiquesunclassified
“…Le cèdre de l'Atlas est une espèce endémique et emblématique des hautes montagnes de l'Algérie et du Maroc dont l'aire de répartition s'étend sur une surface de 140 000 ha (Quézel et Médail, 2003). Cette espèce est sujette au phénomène de dépérissement depuis les années 1980 (Zine El Abidine, 2003 ;Bentouati et Bariteau, 2006 ;Kherchouche et al, 2013 ;Sarmoum et al, 2018). Ce phénomène, qui s'abat sur l'ensemble des forêts de cèdre de l'Afrique du Nord, et plus particulièrement dans le Parc national de Theniet El Had et dans les Aurès (Algérie), est l'expression de phénomènes complexes, aux causalités multiples et interdépendantes qui s'auto-entretiennent et amplifient la destruction de l'écosystème cédraie (Zine El Abidine, 2003 ;Bentouati et Bariteau, 2006).…”
Section: Introductionunclassified
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