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Par Collection Par Auteur- VALENTIN, C., (Editeur scientifique) (4)
- COUTÉ, A. (1)
- D'HERBÈS, J.M. (1)
- DÉFARGE, C. (1)
- EHRMANN, M. (1)
- HEATHWAITE, A.L. (1)
- PEUGEOT, C. (1)
- THOMAS, D.S.G. (1)
- TRICHET, J. (1)
- VALENTIN, C. (1)
- DOUGILL, A.J. (1)
- GALLE, S. (1)
- GRIMAL, S. (1)
- LEPRUN, J.C. (1)
- MALAM ISSA, O. (1)
- VALENTIN, C. (1)
- 1999 (6)
- Action biogène ; Bilan hydrologique ; Brousse tigrée ; Eau du sol ; Ecosystème ; Humidité du sol ; Infiltration ; Niger ; Porosité ; Ruissellement ; Sahel (1)
- Action biogène ; Brousse tigrée ; Domaine aride ; Ecosystème ; Encroûtement ; Micromorphologie ; Niger ; Régime hydrique ; Sahel ; Sol ; Végétation (1)
- Africa ; Burkina ; Catena ; Ecological niche ; Ecosystem ; Mali ; Sahel ; Slope gradient ; Topography ; Vegetation ; Vegetation dynamics ; Wind ; Zoning (1)
- Afrique ; Brousse tigrée ; Burkina ; Catena ; Dynamique de la végétation ; Ecosystème ; Mali ; Niche écologique ; Pente de versant ; Sahel ; Topographie ; Vent ; Végétation ; Zonage (1)
- Arid area ; Biogenic process ; Duricrust ; Ecosystem ; Micromorphology ; Niger ; Sahel ; Soil ; Vegetation ; Water regime (1)
- Arid area ; Botswana ; Ecosystem ; Hydrochemistry ; Kalahari ; Model ; Nutrient ; Over-grazing ; Pastoral ; Scrub ; Soil degradation ; Soil moisture ; Soil water (1)
- Australia ; Colonization ; Community ; Discoveries ; Historical geography ; Immigrants ; International migration ; Nineteenth Century ; Swedish ; Traveller's tale ; Twentieth Century ; Western Australia (1)
- Australie ; Colonisation ; Communauté ; Découverte ; Géographie historique ; Immigrés ; Migration internationale ; Récit de voyage ; Siècle 19 ; Siècle 20 ; Suédois ; Western Australia (1)
- Bilan hydrologique ; Brousse tigrée ; Domaine semi-aride ; Eau du sol ; Ecosystème ; Encroûtement ; Erosion des sols ; Niger ; Ruissellement ; Végétation ; Zonage (1)
- Biogenic process ; Ecosystem ; Infiltration ; Niger ; Porosity ; Rill wash ; Sahel ; Soil moisture ; Soil water ; Water balance (1)
- Botswana ; Domaine aride ; Dégradation des sols ; Eau du sol ; Ecosystème ; Formation arbustive ; Humidité du sol ; Hydrochimie ; Kalahari ; Modèle ; Nutriment ; Pastoral ; Surpâturage (1)
- Duricrust ; Ecosystem ; Niger ; Rill wash ; Semi-arid area ; Soil erosion ; Soil water ; Vegetation ; Water balance ; Zoning (1)
- The significance of soil, water and landscape processes in banded vegetation patterning (4)
- De la mer Baltique à l'océan Indien. Destinées suédoises en terre australe (1)
- Environmental change in the Kalahari : integrated land degradation studies for nonequilibrium dryland environments (1)
- Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel) (1)
- Niger tiger bush as a natural water harvesting system (1)
- The influence of ecological factors on tiger bush and dotted bush patterns along a gradient from Mali to northern Burkina Faso (1)
- Water balance in a banded vegetation pattern. A case study of tiger bush in western Niger (1)
- Morphology and microstructure of microbiotic soil crusts on a tiger bush sequence (Niger, Sahel)
- The AA. report detailed micromorphological observations on microbiotic crusts in the tiger bush landscape near the village of Banizoumbou, in western Niger, in the Sahelian region of west Africa. The roles of these crusts in soil stabilisation
- 1999
- Water balance in a banded vegetation pattern. A case study of tiger bush in western Niger
- This paper aims to calculate water balance of an entire tiger bush unit, including bare and vegetated areas, to validate a rain redistribution hypothesis. They monitored measurements of runoff and soil moisture content in each zone composing a tiger
- bush unit in Niger during a period of 4 yr, including contrasting rainy seasons. The data were monitored at a rain dependent time step.
- 1999
- The influence of ecological factors on tiger bush and dotted bush patterns along a gradient from Mali to northern Burkina Faso
- 1999
- Niger tiger bush as a natural water harvesting system
- 1999
- Patterns of ecological change, notably increased bush dominance, have been linked to increased cattle-grazing intensity, but it remains contentious whether these changes represent land degradation. Given the inherent ecological variability
- nutrient avaibility. They present a model of ecosystem dynamics that does not display bush encroachment as a definite form of land degradation.
- 1999
- l'Etat. Certains sont devenus citadins, notamment à Perth-Freemantle, d'autres ont choisi d'explorer le bush australien. Bien intégrés, ils ont fondé les premiers clubs et sociétés scandinaves au tournant du siècle.
- 1999