@article{fdi:010062003,
  title = {{O}rigin of the high sensitivity of {C}hinese red clay soils to drought : significance of the clay characteristics},
  author = {{D}'{A}ngelo, {B}. and {B}ruand, {A}. and {Q}in, {J}. {T}. and {P}eng, {X}. {H}. and {H}artmann, {C}hristian and {S}un, {B}. and {H}ao, {H}. {T}. and {R}ozenbaum, {O}. and {M}uller, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he red clay soils which are widespread in {C}hina are known to be highly sensitive to drought during the dry season but the origin of this high sensitivity to drought remains unclear. {S}everal red clay soils were selected in the {H}unan province for study. {W}e studied their basic physico-chemical properties and clay mineralogy, their structure and shrinkage properties, as well as their water retention properties. {R}esults show that the amount of water available between -330 and -15,000 h{P}a water potential is consistent with that recorded in many other clay soils from different parts of the world and thus cannot explain the high sensitivity of the red clay soils to drought. {T}his high sensitivity to drought might be related to the high proportion of poorly available water which was characterized by the amount of available water between -3,300 and -15,000 h{P}a water potential. {C}omparison with clay soils located in different parts of the world and for which the sensitivity to drought was not identified showed that this proportion of poorly available water is indeed much higher in the red clay soils studied than in clay soils representing a large range of both clay content and mineralogy. {T}his specific behavior of the red clay soils studied is thought to be related to the history of their parent materials: these materials are continental sediments which may have been submitted to great hydric stress, thus leading to strongly consolidated soils with consequences such as a high proportion of poorly available water, strong aggregation and weak shrinkage properties.},
  keywords = {{C}lay mineralogy ; {P}orosity ; {S}hrinkage ; {W}ater retention ; {A}ggregate ; {E}xternal surface area ; {CHINE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {223},
  numero = {},
  pages = {46--53},
  ISSN = {0016-7061},
  year = {2014},
  DOI = {10.1016/j.geoderma.2014.01.029},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062003},
}