Abstract
The fate of inorganic 15N added to different coniferous forest soils was traced throughout the soil profile (0–25 cm) in a laboratory experiment under controlled conditions of temperature and water content. Six soils with different chemical climates were compared. The sequestration of labelled N was significantly explained by the clay content but the correlation was improved when C and N content were included. The level of acidification, even in soil with a fine texture, reduced the immobilization. For a similar N input, sandy soils with low C content or high acidification showed a reduced N storage capacity, so that N excess would be able to pollute the ground-water.
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Coûteaux, MM., Sallih, Z. Fate of inorganic 15N in the profile of different coniferous forest soils. Biol Fertil Soils 17, 101–107 (1994). https://doi.org/10.1007/BF00337740
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DOI: https://doi.org/10.1007/BF00337740