@article{fdi:010011800,
  title = {{P}hysical control of soil organic matter dynamics in the tropics},
  author = {{F}eller, {C}hristian and {B}eare, {M}.{H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}anagement of soil organic matter ({SOM}) is esential to sustaining the quality and productivity of soils around the globe. {T}his appears to be particularly true in the tropics where there is a greater proportion of nutrient poor, highly weathered soils that are more susceptible to losses of {SOM}. {D}eveloping management practices that promote the maintenance and storage of {SOM} in the tropics depends on understanding the factors that control {SOM} dynamics. {T}his paper describes the role that soil physical properties (mineralogy, texture and structure) play in regulating the accumulation and loss of {SOM} in tropical soils. {T}wo different approaches are presented here. {T}he first approach explores relationships between total {SOM} and soil physical properties in the tropics. {T}hese include effects of climate and mineralogy on latitudinal gradients in {SOM}, interactions between texture and mineralogy as determinants of {SOM} storage and relationships between {SOM} and the structural stability of soils. {T}he second approach describes characteristics of {SOM} associated with different physical constituents of the soil, with particular attention to particle-size fractions and aggregated particles of different sizes. {I}n each case we summarize findings on the distribution of {SOM} among fractions and characterise its biochemical composition, bioavailability and turnover. {E}vidence for and against the physical protection of organic matter from microbial attack in tropical soils is also given. {W}herever possible, we compare and contrast the findings for tropical soils with those of temperate soils. {T}he influence of landuse management on physical control of {SOM} dynamics is discussed as an overriding factor with each approach. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{SOL} ; {MATIERE} {ORGANIQUE} ; {MINERALOGIE} ; {TEXTURE} {DU} {SOL} ; {STRUCTURE} {DU} {SOL} ; {FERTILITE} {DU} {SOL} ; {EVOLUTION} {DES} {SOLS} {SOUS} {CULTURE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {79},
  numero = {},
  pages = {69--116},
  ISSN = {0016-7061},
  year = {1997},
  DOI = {10.1016/{S}0016-7061(97)00039-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010011800},
}