Article révisé par les pairs
Résumé : Fluctuations of the water table were measured throughout a transect overlying successively a peaty grassland with Molinia caerulea, a tall-herb community with Filipendula ulmaria and a reed-bed with Phalaris arundinacea. During the vegetation period, N mineralization is almost not affected by the degree of hydromorphy of the humic layers: N mineralization rates are not significantly different in the 3 studied sites and in every case nitrification is the dominant process. -from English summary