@article{fdi:010053535,
  title = {{A}nalysis of physical quality of soil using the water retention curve : validity of the {S}-index},
  author = {{S}antos, {G}. {G}. and da {S}ilva, {E}. {M}. and {M}archao, {R}. {L}. and da {S}ilveira, {P}. {M}. and {B}ruand, {A}. and {J}ames, {F}. and {B}ecquer, {T}hierry},
  editor = {},
  language = {{ENG}},
  abstract = {{A}mong the various soil indicators established in order to discuss physical properties of soils is the {S}-index, derived from the slope of the soil water retention curve at its inflection point, used by a number of authors. {I}n this publication we discuss the value of the slope at the inflection point of the soil water retention curve according to the independent variable used to plot it. {W}e show that a representation of the water content according to the arithmetic rather than logarithmic expression of the suction for the {S}-index yields a different result for the soil selected. {M}ore generally, our results show that examining the physical properties of soil using a water retention curve plotted with an arithmetic expression of suction offers greater potential than when plotted with its natural or decimal logarithm as is often found in the literature.},
  keywords = {{S}oil compaction ; {B}ulk density ; {V}an {G}enuchten model ; {S}-index},
  booktitle = {},
  journal = {{C}omptes {R}endus {G}eoscience},
  volume = {343},
  numero = {4},
  pages = {295--301},
  ISSN = {1631-0713},
  year = {2011},
  DOI = {10.1016/j.crte.2011.02.001},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053535},
}