@article{fdi:010076677,
  title = {{I}mpacts of land use on hydrodynamic properties and pore architecture of volcanic soils from the {M}exican {H}ighlands},
  author = {{D}uwig, {C}{\'e}line and {P}rado, {B}. and {T}inet, {A}. {J}. and {D}elmas, {P}. and {D}al {F}erro, {N}. and {V}andervaere, {J}. {P}. and {D}enis, {H}. and {C}harrier, {P}. and {S}trozz, {A}. {G}. and {M}orari, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{V}olcanic soils are important resources because of their unique mineralogical and physical characteristics, and allophanic {A}ndosols represent some of the world's most fertile soils. {H}owever, their unique properties can be lost when cultivated. {M}ost soils in the {C}entral {V}alley, {M}exico, are derived from volcanic materials. {T}his valley encompasses one of the largest water supply systems in the world by volume, but is affected by soil degradation and deforestation. {S}ustainably managing volcanic soils requires understanding how land use affects their hydrodynamic properties. {G}as adsorption and mercury intrusion porosimetry, water retention curves, tension infiltrometry and {X}-ray tomography were used to describe pore structure characteristics. {T}wo volcanic soils (one {A}ndosol and one derived from indurated tuff - {T}epetates), three land uses (maize monoculture, maize-wheat rotation and fallow) and two horizons ({A}p and {A}2 for maize monoculture and maize-wheat rotation) were studied. {T}illage affected topsoil by increasing the sand fraction by 38% and decreasing total porosity and macroporosity by 23% and 40% respectively. {M}acropore size was reduced and the number of isolated macropores was higher in the tilled layer under maize, compared with untilled subsoil. {T}he plot under maize-wheat rotation had lower allophane content, and saturated hydraulic conductivity was reduced by nearly an order of magnitude and water retention by half, compared with maize and fallow plots. {C}ompared with {A}ndosols, {T}epetates showed differences in mineralogical composition with lower contents of amorphous compounds and in its porous network characteristics with twice the total and percolating macroporosity compared with the maize plot. {I}ts high content of organic carbon (3.5%) seemed beneficial for its hydrodynamic properties. {S}ustainable agricultural management of these volcanic soils requires reducing mechanised tillage, avoiding periods when soil is bare, not applying maize-wheat rotation and applying maize-fallow rotation allowing natural vegetation growth.},
  keywords = {{A}ndosol ; pore size distribution ; {X}-ray tomography ; {MEXIQUE}},
  booktitle = {},
  journal = {{S}oil {R}esearch},
  volume = {57},
  numero = {6},
  pages = {629--641},
  ISSN = {1838-675{X}},
  year = {2019},
  DOI = {10.1071/sr18271},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076677},
}