Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation
Between the little Kabylia, in the North, the Hodna, in the South, and the Aurès, in the southeast, extends the High Plains within the Sétif Province. In these vast plains, semi-arid, several mounts are isolated. The djebel Megriss, represents one of the most important mounts of the north part of th...
Published in: | Physio-Géo |
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Format: | Article in Journal/Newspaper |
Language: | French |
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Claude Martin
2022
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Online Access: | http://journals.openedition.org/physio-geo/3187 |
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fttriple:oai:gotriple.eu:oai:revues.org:physio-geo/3187 2023-05-15T18:19:01+02:00 Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation The plant landscapes of Jebel Mégriss (Northern Tell, Algeria): diversity of ecosystems, floristic richness, extent of anthropisation Boulaacheb, Nacira Algérie Allier Burkina Faso Calabria Chine Corbières Djebel Mégriss Fleuve Sénégal France Gandiolais Guadeloupe Italy Karakash La Macta Langue de Barbarie Loukkos Maroc Mer Baltique Montagne Pelée Mostaganem Oran Oued Righ Oued Sébaou Sahara Sebkha Essijoumi Sénégal Soufrière Tunis Tunisie Xinjiang 2022-01-22 http://journals.openedition.org/physio-geo/3187 fr fre Claude Martin Physio-Géo urn:doi:10.4000/physio-geo.3187 http://journals.openedition.org/physio-geo/3187 lic_creative-commons Algeria anthropization relict vegetation Tell vegetal biodiversity Access to water Alluvial terraces Barrier beach Birds Caulerpa racemosa Channel morphology Climate change Climate history Climatology Coastal geomorphology Drought Environment Filtration Flood risks Floodplains Geomorphology Heavy metals Hydraulic conductivity Hydrogeomorphology Hydrology Lahar Marine ecosystem Marsh Neotectonics Orbieu Palynology Risks River mouth Sabkha Sea ice Sea level Shoreline Travertines Urbanization Vegetation Vegetation history Volcano Wastewater Water Wetland Algérie anthropisation biodiversité végétale végétation relictuelle Accès à l'eau Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.4000/physio-geo.3187 2023-01-22T18:09:52Z Between the little Kabylia, in the North, the Hodna, in the South, and the Aurès, in the southeast, extends the High Plains within the Sétif Province. In these vast plains, semi-arid, several mounts are isolated. The djebel Megriss, represents one of the most important mounts of the north part of these High Plains. It plays the role of a geographical barrier, by decreasing the influences of the South on the neighbouring mounts, in particular the mounts of Djurdjura and Babors. It can also be at the origin of phenomena of biological isolation, which drove to the preservation of relics in very located biotopes (temporary ponds).Its ecosystem is extremely heterogeneous in terms of environment, with characteristic grassland, meadows, low shrubland consisting of Quercusilex and low shrubland consisting of Calicotome and Ampelodesmos ("diss grass"); a peculiarity is the presence of temporary ponds, sources, temporary streams, meadows flooded in winter and meadows dominate by Juncus and Carex.This variety of environment played a big role in the variety of the flora where 500 botanical species (Phanerogams and vascular Cryptogams) and 22 subspecies were listed belonging to 276 genres and 72 families.Among the botanical species vascular listed, 40 % are of Mediterranean origin, 24 % are septentrional, 19 % are species of transition between the Mediterranean element and the other elements, 10 % are endemic, 5 % are cosmopolitan and 2 % are tropical.Two of the peculiarities of the flora of the massif are, on one hand, its wealth in orchids, in particular in Dactylorhiza, present mainly in the boreal and temperate zones of the globe, and, on the other hand, the presence of numerous rare species and belonging to the other sectors than the Constantine region to which belongs djebel Megriss (Butomusumbellatus, Myosorusminima, Brunella laciniata, etc.).The ecosystem is affected by many menaces (cultivation, repeated passage, harnessing of the water, the picking, the distribution of intrusive species, pollution). Entre la ... Article in Journal/Newspaper Sea ice Unknown Physio-Géo Volume 7 183 210 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
French |
topic |
Algeria anthropization relict vegetation Tell vegetal biodiversity Access to water Alluvial terraces Barrier beach Birds Caulerpa racemosa Channel morphology Climate change Climate history Climatology Coastal geomorphology Drought Environment Filtration Flood risks Floodplains Geomorphology Heavy metals Hydraulic conductivity Hydrogeomorphology Hydrology Lahar Marine ecosystem Marsh Neotectonics Orbieu Palynology Risks River mouth Sabkha Sea ice Sea level Shoreline Travertines Urbanization Vegetation Vegetation history Volcano Wastewater Water Wetland Algérie anthropisation biodiversité végétale végétation relictuelle Accès à l'eau |
spellingShingle |
Algeria anthropization relict vegetation Tell vegetal biodiversity Access to water Alluvial terraces Barrier beach Birds Caulerpa racemosa Channel morphology Climate change Climate history Climatology Coastal geomorphology Drought Environment Filtration Flood risks Floodplains Geomorphology Heavy metals Hydraulic conductivity Hydrogeomorphology Hydrology Lahar Marine ecosystem Marsh Neotectonics Orbieu Palynology Risks River mouth Sabkha Sea ice Sea level Shoreline Travertines Urbanization Vegetation Vegetation history Volcano Wastewater Water Wetland Algérie anthropisation biodiversité végétale végétation relictuelle Accès à l'eau Boulaacheb, Nacira Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
topic_facet |
Algeria anthropization relict vegetation Tell vegetal biodiversity Access to water Alluvial terraces Barrier beach Birds Caulerpa racemosa Channel morphology Climate change Climate history Climatology Coastal geomorphology Drought Environment Filtration Flood risks Floodplains Geomorphology Heavy metals Hydraulic conductivity Hydrogeomorphology Hydrology Lahar Marine ecosystem Marsh Neotectonics Orbieu Palynology Risks River mouth Sabkha Sea ice Sea level Shoreline Travertines Urbanization Vegetation Vegetation history Volcano Wastewater Water Wetland Algérie anthropisation biodiversité végétale végétation relictuelle Accès à l'eau |
description |
Between the little Kabylia, in the North, the Hodna, in the South, and the Aurès, in the southeast, extends the High Plains within the Sétif Province. In these vast plains, semi-arid, several mounts are isolated. The djebel Megriss, represents one of the most important mounts of the north part of these High Plains. It plays the role of a geographical barrier, by decreasing the influences of the South on the neighbouring mounts, in particular the mounts of Djurdjura and Babors. It can also be at the origin of phenomena of biological isolation, which drove to the preservation of relics in very located biotopes (temporary ponds).Its ecosystem is extremely heterogeneous in terms of environment, with characteristic grassland, meadows, low shrubland consisting of Quercusilex and low shrubland consisting of Calicotome and Ampelodesmos ("diss grass"); a peculiarity is the presence of temporary ponds, sources, temporary streams, meadows flooded in winter and meadows dominate by Juncus and Carex.This variety of environment played a big role in the variety of the flora where 500 botanical species (Phanerogams and vascular Cryptogams) and 22 subspecies were listed belonging to 276 genres and 72 families.Among the botanical species vascular listed, 40 % are of Mediterranean origin, 24 % are septentrional, 19 % are species of transition between the Mediterranean element and the other elements, 10 % are endemic, 5 % are cosmopolitan and 2 % are tropical.Two of the peculiarities of the flora of the massif are, on one hand, its wealth in orchids, in particular in Dactylorhiza, present mainly in the boreal and temperate zones of the globe, and, on the other hand, the presence of numerous rare species and belonging to the other sectors than the Constantine region to which belongs djebel Megriss (Butomusumbellatus, Myosorusminima, Brunella laciniata, etc.).The ecosystem is affected by many menaces (cultivation, repeated passage, harnessing of the water, the picking, the distribution of intrusive species, pollution). Entre la ... |
format |
Article in Journal/Newspaper |
author |
Boulaacheb, Nacira |
author_facet |
Boulaacheb, Nacira |
author_sort |
Boulaacheb, Nacira |
title |
Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
title_short |
Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
title_full |
Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
title_fullStr |
Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
title_full_unstemmed |
Les paysages végétaux du djebel Mégriss (Tell septentrional, Algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
title_sort |
les paysages végétaux du djebel mégriss (tell septentrional, algérie) : diversité des écosystèmes, richesse floristique, ampleur de l'anthropisation |
publisher |
Claude Martin |
publishDate |
2022 |
url |
http://journals.openedition.org/physio-geo/3187 |
op_coverage |
Algérie Allier Burkina Faso Calabria Chine Corbières Djebel Mégriss Fleuve Sénégal France Gandiolais Guadeloupe Italy Karakash La Macta Langue de Barbarie Loukkos Maroc Mer Baltique Montagne Pelée Mostaganem Oran Oued Righ Oued Sébaou Sahara Sebkha Essijoumi Sénégal Soufrière Tunis Tunisie Xinjiang |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
urn:doi:10.4000/physio-geo.3187 http://journals.openedition.org/physio-geo/3187 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.4000/physio-geo.3187 |
container_title |
Physio-Géo |
container_issue |
Volume 7 |
container_start_page |
183 |
op_container_end_page |
210 |
_version_ |
1766195839316787200 |