Cartographie du risque feu de forêt dans le Nord-est algérien : cas de la wilaya d’El Tarf

Arfa, Azzedine Mohamed Touffik; Benderradji, Mohamed El Habib; Saint-Gérand, Thierry; Alatou, Djamel

doi:10.4000/cybergeo.32304

Cited by 9 publications

(3 citation statements)

References 6 publications

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Section: Synthesiscontrasting

confidence: 99%

“…Contrary to a widespread idea in the literature dealing with vegetation degradation in Algeria [83][84][85][86][87], our study showed that the situation was more complex and we note a resilience capacity of the natural vegetation (in particular the reconstitution of the scrubland after the fire). This has been highlighted by several authors [4,10,11,88] despite the significant disturbances experienced during a period characterized by an accumulation of political and economic difficulties.…”

Section: Synthesiscontrasting

confidence: 99%

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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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Section: Synthesiscontrasting

confidence: 99%

Section: Synthesiscontrasting

confidence: 99%

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

et al. 2021

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“…This coastline teems with wild medicinal and aromatic plants (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). This harmonious greenery contains ecosystem variables and maintains the ecological stability of the region, which led to several inventories and researches on the vegetation of this region like the works of (16) as well as (17). The empirical knowledge gained by the indigenous people on the use of aromatic and medicinal plants was mostly passed on orally from generation to generation, thereby preserving the heritage knowledge (16,18,19).…”

Section: Introductionmentioning

confidence: 99%

Insecticidal effect of Eucalyptus globulus and Rosmarinus officinalis essential oils on a stored food pest Ephestia kuehniella (Lepidoptera, Pyralidea)

Rekioua¹,

Boumendjel²,

Taibi³

et al. 2022

Cell Mol Biol (Noisy-le-grand)

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For the purpose of evaluating the local heritage of eastern Numidia, an ethnobotanical survey was conducted on a population located in the province (department) of El-Tarf (North-East of Algeria) on a frequency of use of two plants known in traditional health; Eucalyptus globulus (Myrtaceae) and Rosmarinus officinalis (Lamiaceae). After processing data, our results show a female dominance when using these plants on a fairly advanced age group (40 to 60 years old). These plants are used by the people at their fresh state and deem the leaf as the most used part for therapeutic and cosmetic purposes. Furthermore, steam baths and infusion remain the most widespread preparation methods. Most consumers use these plants to treat influenza, respiratory illnesses as well as diseases of the digestive tract. GC-MS of essential oils extracted from the plants studied disclose a dominance of the alcohols portrayed by the monoterpenes (42.73%), sesquiterpenes (32.6%) and oxides (10.48%) in E. globulus. Data also indicate a high content of oxides (38.11%) monoterpene alcohols (20.43%) and monoterpenes (19.70%) in R.officinalis. Toxicological contact tests were achieved on a store-products pest Ephestia kuehniella. The test results were assessed with E.globulus (LC50=0.013; LC95=0.081 µl/cm 2 ) and R.officinalis (LC50=0.011; LC95=0.059 µl/cm 2 ). The lethal time changes according to the dose used and the tested plant. In E.globulus, we observe (concentration: 0.005 µl/cm 2 ; LT50=56.2 h), (Concentration: 0.01 µl/cm 2 ; LT50=49.53h) and (Concentration: 0.04µl/cm 2 ; LT50=20.93h). Whereas in R.officinalis, we recorded (Concentration: 0.005 µl/cm 2 ; LT50=55.7h), (Concentration: 0.01µl/cm 2; LT50=54.99 h) and (Concentration: 0.04µl/cm 2 ; LT50=29.13 h). The bioinsecticide has also been administered by fumigation and underpins toxicity by the reduction of adults longevity in E.kuehniella with R.officinalis (LC50=4.03 µl/l air; LC95=14.73 µl/l air) and E.globulus (LC50=7.76 µl/lair; LC95=21.23 µl/l air). In addition, the tested plants show an outstanding repellent effect as long as E.globulus and R.officinalis essential oils respectively demonstrate a slightly repellent power at 42.22% (RD50=0.09 µl/cm 2 ; RD95=0.24 µl/cm 2 ) and repellent at 60.00% (RD50=0.06 µl/cm 2 ; RD95= 0.35 µl/cm 2 ) towards E.kuehniella adults. The plant resources represent a genuine reserve of bioactive molecules, which can create solutions to sustainable development issues. These plants might be the source of new molecules of combat against some pests in order to protect human health and safeguard the environment.

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Spatio-temporal dynamics of cyanobacterial abundance and toxicity in a Mediterranean hypereutrophic lake

et al. 2023

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Cartographie du risque feu de forêt dans le Nord-est algérien : cas de la wilaya d’El Tarf

Cited by 9 publications

References 6 publications

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

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

Insecticidal effect of Eucalyptus globulus and Rosmarinus officinalis essential oils on a stored food pest Ephestia kuehniella (Lepidoptera, Pyralidea)

Spatio-temporal dynamics of cyanobacterial abundance and toxicity in a Mediterranean hypereutrophic lake

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