@article{fdi:010057075,
  title = {{T}oward delineating hydro-functional soil mapping units using the pedostructure concept : a case study},
  author = {{S}alahat, {M}. and {M}ohtar, {R}. {H}. and {B}raudeau, {E}rik and {S}chulze, {D}. {G}. and {A}ssi, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}urrent soil maps contain qualitative attributes which are challenging to integrate into agronomic models or decision support systems. {I}n this paper, a new approach is proposed that will enable the use of soil maps as a suitable information system of soils hydrostructural properties for agronomic and environmental models. {T}his enhancement is possible through a new methodology for characterizing the soil units on the basis of the multi-scale soil-water functionality of the pedon which is a representative soil mapping unit delineated by pedologists according to the geomorphology. {T}he hydro-functional mapping units should represent soil mapping units that are theoretically homogenous from the perspective of the pedostructure parameters of the pedon. {F}or the purpose of this study, the {H}aggerty-{C}ox property, {W}est {L}afayette, {I}ndiana, {USA} was selected. {T}he soil data "soil mapping units and physical characteristics" of the study area were obtained from {SSURGO}. {D}ue to time and cost constraints, the research was restricted to three {SSURGO} soil units ({S}w{A}, {S}tarks-{F}incastle complex with 0-2% slope: {M}s{C}2, {M}iami silt loam, 6-12% slopes: and {H}o{A}, {H}ononegah fine sandy loam with 0-2% slopes) to check their spatial homogeneity according to the pedostructure parameters ({PS}). {T}he discriminant statistical analysis for the area of study shows that the {PS} parameters are unique for each soil mapping unit and can be effectively used to characterize these units and validate their delineation. {T}he resulting hydro-functional soil mapping units match {SSURGO} units but have additional physical attributes. {I}n general, subsurface horizons ({B}) are more distinguishable than surface horizons ({A}p), and using pedostructure parameters from both potential and shrinkage curves gives the highest distinguishing value. {R}esults confirm that the pedostructure parameters are discriminant characteristics of the hydrostructural functioning of soils as delineated by pedologists. {H}aving the hydro-functional soil mapping units will assist in the decision support system data analysis, which in turn, will allow for the prediction of water and chemical transport and interactions.},
  keywords = {{H}ydro-functional soil mapping units ; {S}hrinkage curve ; {W}ater potential ; {S}oil mapping ; {P}edostructure parameters ; {H}ydrostructural characterization},
  booktitle = {},
  journal = {{C}omputers and {E}lectronics in {A}griculture},
  volume = {86},
  numero = {{SI}},
  pages = {15--25},
  ISSN = {0168-1699},
  year = {2012},
  DOI = {10.1016/j.compag.2012.04.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057075},
}