Needle decay and N dynamics of Pinus pinea, P. laricio, P. sylvestris and Abies alba were studied at three forest sites differing in their level of soil N. Only the N-rich Abies alba needles released N from the start of the incubation. In the first year, the litters P. pinea and P. sylvestris accumulated N up to 220% of the initial amount on the soil rich in N; on the poor soils the N accumulation reached only 150% of the initial amount; between sites the accumulation rates differed significantly. Thus soil N level may enhance N accumulation in SOM. © Editors, Freising-Weihenstephan/FRG.
Nitrogen dynamics of decomposing needle litters in three coniferous forests of the Mediterranean area
RUTIGLIANO, Flora Angela;FIORETTO, Antonietta;
1998
Abstract
Needle decay and N dynamics of Pinus pinea, P. laricio, P. sylvestris and Abies alba were studied at three forest sites differing in their level of soil N. Only the N-rich Abies alba needles released N from the start of the incubation. In the first year, the litters P. pinea and P. sylvestris accumulated N up to 220% of the initial amount on the soil rich in N; on the poor soils the N accumulation reached only 150% of the initial amount; between sites the accumulation rates differed significantly. Thus soil N level may enhance N accumulation in SOM. © Editors, Freising-Weihenstephan/FRG.File in questo prodotto:
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