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Article Dans Une Revue Annals of Forest Science Année : 2008

Spatial variability of nutrient stocks in the humus and soils of a forest massif (Fougeres, France)

A. Legout
C. Nys
  • Fonction : Auteur

Résumé

In this study, the spatial distribution of nutrient stocks (K, Ca, Mg and P) was examined in humus and soils at the forest massif scale (Fougères forest, France). A random stratified sampling plan including 100 sampling points was used and three potential variation factors of nutrient stocks were tested: age of stand, type of stand (broad-leaved or coniferous trees) and type of soil. Sampling classes were then compared and the variation factors were examined. Results demonstrated that nutrient stocks in the humus were not influenced by the cited factors and only the type of soil influenced nutrient stocks in soils. In fact, stocks of exchangeable elements in soils were much higher in Colluviosols-Fluviosols which show redoximorphic characteristics, and available phosphorus stocks were lower than in Alocrisols-Neoluvisols. Moreover, a low variability of nutrient stocks was observed in Alocrisols-Neoluvisols as opposed to Colluviosols-Fluviosols, which may suggest the existence of other variation factors not taken into account in this study (hydromorphic gradient, type and age of stand in hydromorphic zones).
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hal-00729911 , version 1 (31-05-2020)

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A. Legout, Christian Walter, C. Nys. Spatial variability of nutrient stocks in the humus and soils of a forest massif (Fougeres, France). Annals of Forest Science, 2008, 66 (3), non paginé. ⟨10.1051/forest:2007080⟩. ⟨hal-00729911⟩
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