@article{fdi:010070091,
  title = {{C}ombining measured sites, soilscapes map and soil sensing for mapping soil properties of a region},
  author = {{W}alker, {E}. and {M}onestiez, {P}. and {G}omez, {C}{\'e}cile and {L}agacherie, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he limited availability of soil information has been recognized as a main limiting factor in digital soil mapping ({DSM}) studies. {I}t is therefore important to optimize the joint use of the three sources of soil data that can be used as inputs of {DSM} models, namely spatial sets of measured sites, soil maps and soil sensing products. {I}n this paper, we propose to combine these three inputs, through a cokriging with a categorical external drift ({CKCED}). {T}his new interpolation technique was applied for mapping seven soil properties over a 24.6 km(2) area located in the vineyard plain of {L}anguedoc ({S}outhern {F}rance), using an hyperspectral imagery product as example of a soil sensing data. {C}ross-validation results of {CKCED} were compared with those of five spatial and non-spatial techniques using one of these inputs or a combination of two of them. {T}he results obtained in the {L}a {P}eyne {C}atchment showed i) the utility of soil map and hyperspectral imagery products as auxiliary data for improving soil property predictions ii) the greater added-value of the latter against the former in most situations and iii) the feasibility and the interest of {CKCED} in a limited number of soil properties and data configurations. {T}esting {CKCED} in case study with soil maps of better quality and soil sensing techniques covering more area and depths should be necessary to better evaluate the benefits of this new technique.},
  keywords = {{D}igital soil mapping ; {R}emote sensing ; {H}yperspectral data ; {K}riging ; {C}ross validation ; {S}oil map ; {S}oil properties ; {FRANCE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {300},
  numero = {},
  pages = {64--73},
  ISSN = {0016-7061},
  year = {2017},
  DOI = {10.1016/j.geoderma.2016.12.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070091},
}