@article{fdi:010018924,
  title = {{S}oil and water components of banded vegetation patterns},
  author = {{V}alentin, {C}hristian and {D}'{H}erb{\`e}s, {J}ean-{M}arc and {P}oesen, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}anded landscapes are comprised of alternating bands of vegetation and bare ground aligned along the contours in arid and semi-arid regions (50-750 mm rainfall), on very gentle and uniform slopes (0.2-2%). {V}egetated bands can be perpendicular to the direction of the dominant wind, or more frequently of the slope. {U}nder given climatic conditions, slope gradient is the controlling factor of the type of pattern ('spotted', or 'broadly', or 'typically' banded). {F}or a given slope gradient, mean annual rainfall determines the contrast between the vegetated and bare phase, as well as the band length and the interband width:band width ratio. {A} typical transect through such two-phase mosaic includes a dynamic succession of surface crusts which generates a run-off-run-on system. {T}his favours the capture of limited water resources and thus a biomass production greater for banded patterns than spotted patterns or uniformly scattered vegetation. {M}oreover, vegetated bands act as natural bench structures that greatly limit soil erosion. {A}s suggested by modelling, banded vegetation patterns can equally be derived from nearly bare areas or from dense vegetation patterns. {B}ecause banded vegetation patterns have often been considered as a form of degradation of previous continuous vegetation cover, many attempts have been made by foresters to restore this initial cover by reforestation of the bare interbands. {H}owever, the numerous failures of reforestation of the bare interbands illustrate the key role of these mosaic components in the maintenance of the tiger bush ecosystem. {B}anded vegetation patterns are more resilient to climate change than to human disturbances. {T}he loss of landscape patchiness due to the clearing of the bands either for fuelwood or for ephermeral cropping induces a rapid decline in soil fertility and water infiltration potential... ({D}'apr{\`e}s le r{\'e}sum{\'e} d'auteur)},
  keywords = {{FORMATION} {VEGETALE} ; {COUVERT} {VEGETAL} ; {GENESE} ; {DYNAMIQUE} {DE} {VEGETATION} ; {CARACTERISTIQUE} {HYDROLOGIQUE} ; {INFILTRATION} ; {EROSION} ; {INDURATION} ; {FERTILITE} {DU} {SOL} ; {CHANGEMENT} {CLIMATIQUE} ; {BROUSSE} {TIGREE} ; {NIGER} ; {AUSTRALIE} ; {SOUDAN} ; {ZONE} {ARIDE} ; {ZONE} {SEMIARIDE}},
  booktitle = {{T}he significance of soil, water and landscape processes in banded vegetation patterning},
  journal = {{C}atena},
  volume = {37},
  numero = {1-2},
  pages = {1--24},
  ISSN = {0341-8162},
  year = {1999},
  DOI = {10.1016/{S}0341-8162(99)00053-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010018924},
}