@article{fdi:010062715,
  title = {{A}ssessment of pedotransfer functions for estimating soil water retention curves for the amazon region},
  author = {{M}edeiros, {J}. {C}. and {C}ooper, {M}. and {D}alla {R}osa, {J}. and {G}rimaldi, {M}ichel and {C}oquet, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{K}nowledge of the soil water retention curve ({SWRC}) is essential for understanding and modeling hydraulic processes in the soil. {H}owever, direct determination of the {SWRC} is time consuming and costly. {I}n addition, it requires a large number of samples, due to the high spatial and temporal variability of soil hydraulic properties. {A}n alternative is the use of models, called pedotransfer functions ({PTF}s), which estimate the {SWRC} from easy-to-measure properties. {T}he aim of this paper was to test the accuracy of 16 point or parametric {PTF}s reported in the literature on different soils from the south and southeast of the {S}tate of {P}ara, {B}razil. {T}he {PTF}s tested were proposed by {P}idgeon (1972), {L}al (1979), {A}ina & {P}eriaswamy (1985), {A}rruda et al. (1987), {D}ijkerman (1988), {V}ereecken et al. (1989), {B}atjes (1996), van den {B}erg et al. (1997), {T}omasella et al. (2000), {H}odnett & {T}omasella (2002), {O}liveira et al. (2002), and {B}arros (2010). {W}e used a database that includes soil texture (sand, silt, and clay), bulk density, soil organic carbon, soil p{H}, cation exchange capacity, and the {SWRC}. {M}ost of the {PTF}s tested did not show good performance in estimating the {SWRC}. {T}he parametric {PTF}s, however, performed better than the point {PTF}s in assessing the {SWRC} in the tested region. {A}mong the parametric {PTF}s, those proposed by {T}omasella et al. (2000) achieved the best accuracy in estimating the empirical parameters of the van {G}enuchten (1980) model, especially when tested in the top soil layer.},
  keywords = {parametric {PTF}s ; point {PTF}s ; soil physics ; soil water ; {BRESIL} ; {AMAZONIE}},
  booktitle = {},
  journal = {{R}evista {B}rasileira de {C}iencia do {S}olo},
  volume = {38},
  numero = {3},
  pages = {730--743},
  ISSN = {0100-0683},
  year = {2014},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062715},
}