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Partager le résultat de cette recherche Interroger des sources externesCauses et conséquences des feux de forêts sur la production du liège dans les subéraies du Nord-Est algérien / Imane Bouregbi
Titre : Causes et conséquences des feux de forêts sur la production du liège dans les subéraies du Nord-Est algérien : Essai de valorisation et réhabilitation Type de document : texte imprimé Auteurs : Imane Bouregbi, Auteur ; Mohamed El-Habib Benderredji,, Auteur Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 183 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Incendie forêt chêne liège liège massifs subéraies restauration sauvegarde fire forest Cork oak cork mountains Cork oak forests restoration safeguard الحرائق الغابات البلوط الفلیني الفلین غابات البلوط الفلیني استرجاع حمایة Index. décimale : 570 Sciences de la vie. Biologie Résumé : The assessment of forest fires (1975-2013) established in the mountains of Eastern Algeria, shows that the cork oak remains the essence most affected compared to other species, with a burned area of 126,412.88 ha (48%). This region is highly affected by wildfires since recorded a cumulative 18,732 fires, degrading a total forest area of 635,471.55 hectares.
The causes attributed to the outbreak of fires are divers . But it seems that the climate factor
is the root cause of all disasters. The floristic forest also has a great influence on the development of fire. While 70% of registered claims originate from the human factor.
Analysis of the impact of forest fires shows that there is a strong negative correlation between the production of cork, the starting number of fires and the area burned.
Examining the evolution of the cork oak survival after passage of fire revealed as snuff into account in forest Collo observations stations, the rate of tree mortality is based on their age so démasclage bark cork.
On the other hand during the recovery of our parcels covered by the fires was addressing the themes of economic type and forest type and the choice of intervention was so as to seek the restoration of the tree layer using crop sizes performed immediately after the passage of the fire, with priority to the cork forests and future productions.
Diplôme : Magistère En ligne : ../theses/biologie/BOU6648.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9800 Causes et conséquences des feux de forêts sur la production du liège dans les subéraies du Nord-Est algérien : Essai de valorisation et réhabilitation [texte imprimé] / Imane Bouregbi, Auteur ; Mohamed El-Habib Benderredji,, Auteur . - constantine [Algérie] : Université Constantine 1, 2014 . - 183 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Incendie forêt chêne liège liège massifs subéraies restauration sauvegarde fire forest Cork oak cork mountains Cork oak forests restoration safeguard الحرائق الغابات البلوط الفلیني الفلین غابات البلوط الفلیني استرجاع حمایة Index. décimale : 570 Sciences de la vie. Biologie Résumé : The assessment of forest fires (1975-2013) established in the mountains of Eastern Algeria, shows that the cork oak remains the essence most affected compared to other species, with a burned area of 126,412.88 ha (48%). This region is highly affected by wildfires since recorded a cumulative 18,732 fires, degrading a total forest area of 635,471.55 hectares.
The causes attributed to the outbreak of fires are divers . But it seems that the climate factor
is the root cause of all disasters. The floristic forest also has a great influence on the development of fire. While 70% of registered claims originate from the human factor.
Analysis of the impact of forest fires shows that there is a strong negative correlation between the production of cork, the starting number of fires and the area burned.
Examining the evolution of the cork oak survival after passage of fire revealed as snuff into account in forest Collo observations stations, the rate of tree mortality is based on their age so démasclage bark cork.
On the other hand during the recovery of our parcels covered by the fires was addressing the themes of economic type and forest type and the choice of intervention was so as to seek the restoration of the tree layer using crop sizes performed immediately after the passage of the fire, with priority to the cork forests and future productions.
Diplôme : Magistère En ligne : ../theses/biologie/BOU6648.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9800 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6648 BOU/6648 Thèse Bibliothèque principale Thèses Disponible
Titre : Caractéristiques thermiques des parois des bâtiments et amélioration de l'isolation Type de document : texte imprimé Auteurs : Nassima Sotehi ; Abla Chaker, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2010 Importance : 153 f. Note générale : 01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
PhysiqueTags : Transfert de chaleur et de masse Polystyrène Isolation thermique Béton allégé Liège Propriétés thermophysiques Méthode des boites thermal insulation lightweight concrete thermal properties cork polystyrene thermophysical properties boxes method heat and mass transfer العزل الحراري خرسانة مخففة فلين البوليستسران خصائص ترموفيزيائية طريقة العلب انتقال الرطوبة و الحرارة Index. décimale : 530 Physique Résumé : Optimizing energy consumption is one of the building designers concerns. This explains the technology assessment and development of new building materials. Among these materials lightweight concrete, which can be play a role as an insulator, while maintaining adequate levels of performance.
The knowledge of the materials thermal properties used for building shielding such as thermal conductivity, thermal resistance and heat mass are the most important features for the choice of a thermal insulation material This work is a contribution to the study of cork lightweight and polystyrene lightweight concretes thermal behaviour. These materials are intended to be used for roof insulation and other building components and there lightness makes them an interesting technical
solution for the building tower.
Regarding the experimental measurements, in steady regime for the thermal conductivity, we have used the “Boxes method”. Thermal resistance and mass heat are obtained by calculation.
The experimental results made it possible to specify the effect of the water content, the materials density and the fibres dosage on the materials thermophysical properties.
The mathematical modelling of coupled heat and mass transfer occurring within building walls is obtained with using Luikov's model. The differential equations obtained are discredited by the finite element method.
The obtained results illustrate the temporal evolutions of the temperature and the moisture
content, and the distributions of the temperature and moisture content inside the wall for several periods of time. They allow us to specify the effect of the nature and fibre dosage on the heat and mass transfer.Diplôme : Doctorat en sciences En ligne : ../theses/physique/SOT5778.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3550 Caractéristiques thermiques des parois des bâtiments et amélioration de l'isolation [texte imprimé] / Nassima Sotehi ; Abla Chaker, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2010 . - 153 f.
01 Disponible à la salle de recherche 01 Disponible au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
PhysiqueTags : Transfert de chaleur et de masse Polystyrène Isolation thermique Béton allégé Liège Propriétés thermophysiques Méthode des boites thermal insulation lightweight concrete thermal properties cork polystyrene thermophysical properties boxes method heat and mass transfer العزل الحراري خرسانة مخففة فلين البوليستسران خصائص ترموفيزيائية طريقة العلب انتقال الرطوبة و الحرارة Index. décimale : 530 Physique Résumé : Optimizing energy consumption is one of the building designers concerns. This explains the technology assessment and development of new building materials. Among these materials lightweight concrete, which can be play a role as an insulator, while maintaining adequate levels of performance.
The knowledge of the materials thermal properties used for building shielding such as thermal conductivity, thermal resistance and heat mass are the most important features for the choice of a thermal insulation material This work is a contribution to the study of cork lightweight and polystyrene lightweight concretes thermal behaviour. These materials are intended to be used for roof insulation and other building components and there lightness makes them an interesting technical
solution for the building tower.
Regarding the experimental measurements, in steady regime for the thermal conductivity, we have used the “Boxes method”. Thermal resistance and mass heat are obtained by calculation.
The experimental results made it possible to specify the effect of the water content, the materials density and the fibres dosage on the materials thermophysical properties.
The mathematical modelling of coupled heat and mass transfer occurring within building walls is obtained with using Luikov's model. The differential equations obtained are discredited by the finite element method.
The obtained results illustrate the temporal evolutions of the temperature and the moisture
content, and the distributions of the temperature and moisture content inside the wall for several periods of time. They allow us to specify the effect of the nature and fibre dosage on the heat and mass transfer.Diplôme : Doctorat en sciences En ligne : ../theses/physique/SOT5778.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3550 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SOT/5778 SOT/5778 Thèse Bibliothèque principale Thèses Disponible
