@article{fdi:010040894,
  title = {{I}nvestigating the spatial and temporal boundaries of {H}ortonian and {H}ewlettian runoff in {N}orthern {M}exico},
  author = {{D}escroix, {L}uc and {V}iramontes, {D}avid and {E}strada, {J}. and {B}arrios, {J}. {L}. {G}. and {A}sseline, {J}ean},
  editor = {},
  language = {{ENG}},
  abstract = {{S}oil surface features strongly determine whether rain water will infiltrate or runoff. {T}his results in a segregation between several kinds of hydrological functioning of hillslopes and catchments. {U}sing a deterministic model, it is attempted to define the spatial and temporal boundaries of {H}ortonian (infiltration excess runoff) and {H}ewlettian (saturation excess overland flow) hydrological behaviour. {T}he model allows to calculate the role of the antecedent precipitation index and the soil water holding capacity in the runoff yield. {T}hese factors depend on soil hydrodynamic properties. {I}n {N}orthern {M}exico, data collected in four experimental networks are used: one in the sub-humid {W}estern {S}ierra {M}adre, one in its semi-arid foothill, one in the centre of the endoreic {B}olson de {M}apimi (the southern part of {C}hihuahuan desert) and the last one on the southern edge of the latter, in a limestone range. {T}here is a regional distribution of these parameters because of rainfall distribution and overall because of the whole ecological context. {T}he value of alpha parameter (which determines the depletion time of soil water content) and the proportion of bare soils are the most important explaining factors of geographical segregation between {H}ortonian and {H}ewlettian contexts. {T}his study determines that the {W}estern {S}ierra {M}adre, with its temperate climate, is mostly characterized by a {H}ewlettian hydrology, despite an increase in {H}ortonian behaviour due particularly to land degradation. {I}nversely, as it is well known, {H}ortonian runoff dominates completely the semi-arid and and areas; however in certain circumstances, saturation excess overland flow can appear due to landscape or local roughness, and local or temporal possibility to infiltrate a great proportion of rainwater, i.e. during low intensity-large duration events (hurricanes crossing the mountains, winter rainy events linked to {E}l {N}ino {S}outhern {O}scillation configuration).},
  keywords = {hortonian runoff ; hewlettian runoff ; water holding capacity ; soil crusting ; semi arid climate ; northern {M}exico},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {346},
  numero = {3-4},
  pages = {144--158},
  ISSN = {0022-1694},
  year = {2007},
  DOI = {10.1016/j.jhydrol.2007.09.009},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040894},
}