Diversité floristique des suberaies du Parc National de Tlemcen (Algerie)

Letreuch-Belarouci, A.; Medjahdi, Boumediene; Letreuch-Belarouci, Noureddine; Benabdeli, Khéloufi

doi:10.24310/abm.v34i0.6913

Cited by 10 publications

(13 citation statements)

References 1 publication

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“…Or, des taxons comme: Centaurea fragilis, Centaurea involucrata, Crepis salzmannii et Frankenia laevis subsp. composita ont été signalées par Medjahdi et al (2009) au niveau des monts de Traras (O1) dans la région de Tlemcen.C'est également le cas de Cordylocarpus muricatus qui a été également signalé dans la région de Tiaret par Miara et al (2017).…”

Section: Discussionunclassified

Etat des connaissances et conservation de flore endemique dans la region d’Oran (Algerie occidentale)

Mansouri¹,

Mıara

Hadjadj-Aoul³

2018

abm

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ResumeCette étude est une première exploration régionale visant la recherche des plantes endémiques de la région d›Oran en vue d›une éventuelle évaluation de leur état de conservation. Les recherches se sont basées essentiellement sur les 124 relevés phytoecologiques réalisés à travers les secteurs O1 et O2 ainsi que certains sorties ciblant les stations de présence des espèces endémiques signalées pour la région d›Oran dans la littérature. Ces recherches de terrain ont conduit à l›identification de 17 taxons endémiques dont certains sont très rares comme Brassic aspinescens et Helianthemum maritimum. D’autres espèces ayant été ciblées par les recherches n’ont pas été retrouvées ce qui renforce l’hypothèse de disparition de certaines d’entre elles. En plus de cette première liste des endémiques réellement observés dans la région depuis l’indépendance du pays, les données sur leurs aspects chorologiques, écologiques et biogéographiques sont exposées et discutés. Mots clés: Endémique, flore, chorologie, conservation, inventaire, Oran, rare. AbstractThis study is a first regional exploration for plants research of the Oran region for a possible evaluation for their conditions of conservation. The research were basically based on 124 phytoecological records carried out across the sectors O1 and O2 as well as some data targeting endemic species presence stations reported for the region of Oran in the literature. This field searches led to the identification of 17 endemic taxa some of which are very rare like Brassica spinescens and Helianthemum maritimum. Other targeted species were not found, which reinforces the hypothesis of the disappearance of some of them. In addition to this first list of endemics actually observed in the region since the independence of the country, the data on their chorological, ecological and phytobiogeographical aspects are exposed and discussed. Key words: Endemics, flora, chorology, conservation, inventory, Oran, rare.

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Section: Discussionunclassified

Etat des connaissances et conservation de flore endemique dans la region d’Oran (Algerie occidentale)

Mansouri¹,

Mıara

Hadjadj-Aoul³

2018

abm

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“…The climatic data of the Hafir station for the period from 1975 to 1991 shows that the average annual total precipitation for this station is 674 mm/year, the maximum average annual temperature is 18.9 • C, the minimum average annual temperature is 8.2 • C, the average annual temperature is 13.6 • C [45]. According to [46], the climate of the area is close to the Mediterranean type, like the northwestern part of Algeria, characterized by:…”

Section: Study Areamentioning

confidence: 99%

Land Use/Land Cover Changes in the Tlemcen Region (Algeria) and Classification of Fragile Areas

et al. 2021

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The Tlemcen region is characterized by very diverse and steep areas exposed to gravity hazards, especially in high and medium mountain areas. Tlemcen National Park was chosen for this study, the main objective of which is to map fragile areas in close relation to reduced vegetation cover due to land-use changes and forest fires. Multi-source data were used to monitor land use/land cover (LULC)patterns in the study area between 1987 and 2017. The methodology is based on an object-oriented classification of the Landsat images, using the K nearest neighbor method for mapping the major LULC classes at the national park level. The results show that LULC is constantly changing in the study area. In 1987, the landscape was made up of (16.5%) oak forests (holm oak, cork oak, zean oak) and Aleppo pine, which then deteriorated following repeated fires in the nineties to barely represent 7.22% of the surface in 1995, followed by a fast forest reclamation, with the forest area doubling in 10 years (13.46% of the area in 2005), and a near stabilization of the forest cover in 2017 with 14.68% of the area. These mutations are mainly due to fluctuations in anthropogenic action. Despite past declines and disturbances, the current forested area in the Tlemcen area represents significant forest capital classified as a national park to be protected and developed.

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“…The forestry of these 5 species in the Mediterranean region still presents many interrogations, as long as, older stands do not always regenerate easily within the framework of traditional management [2].…”

Section: Introductionmentioning

confidence: 99%

“…etc.) have been conducted by the competent authorities without achieving the desired results [2,3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Impact of ecological restoration techniques on the dynamics of degraded ecosystems of the mounts of Saida: Case of the forests of Doui Thabet (West Algeria)

Ahmed

Yahia

Hasnaoui

et al. 2020

Acta Scientifica Naturalis

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The aim of the present study aims to establish the impact of different restoration techniques (soil and vegetation works) of five pioneer species of the Doui Thabet forest (Mounts of Saida, West of Algeria): Pinus halepensis, Pistacia lentiscus., Tetraclinis articulata, Juniperus oxycedru,. and Stipa capensis (= S. tenacissima L.) between 2018 and 2020. An experimental field device covering an area of 1 ha has been installed in the Doui Thabet forest in a Pinus halepensis massive more than 80 years old. The following work was carried out: mechanical grinding of the vegetation (chopping), turning (scarification of soil) to a depth of 10 cm, tillage (Deep ploughing) to a depth of 20 cm, controlled burning of branches, clearing of Stipa capensis, seedlings planted in different seasons for certain species (Stipa capensis = S. tenacissima L.), monitoring of stump rejections and natural sowing. The sowing result varies according to the species and restoration techniques, it is high for Pinus halepensis and Stipa capensis. It is low for Tetraclinis articulata and Juniperus oxycedrus and none for Pistacia lentiscus while for Stipa capensis it is quite high when planted in autumn compared to spring. Turning and burning have proven to be the most abundant treatments for regeneration and growth. Grinding has medium seedling density and growth, while deep tillage and natural sowing showed low seedling density and growth.

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Diversité floristique des suberaies du Parc National de Tlemcen (Algerie)

Cited by 10 publications

References 1 publication

Etat des connaissances et conservation de flore endemique dans la region d’Oran (Algerie occidentale)

Etat des connaissances et conservation de flore endemique dans la region d’Oran (Algerie occidentale)

Land Use/Land Cover Changes in the Tlemcen Region (Algeria) and Classification of Fragile Areas

Impact of ecological restoration techniques on the dynamics of degraded ecosystems of the mounts of Saida: Case of the forests of Doui Thabet (West Algeria)

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