BelangerJolicoeurBouchard1997

Référence

Belanger, N., Jolicoeur, S., Bouchard, M. (1997) Variabilité des processus podzoliques en fonction de l’état hydrique des profils et de leur position sur les versants: le cas d’un petit bassin versant forestier du centre du Nouveau-Brunswick. Hommes et Terres du Nord. (Scopus )

Résumé

A soil solution study in a forested subcatchment of central New Brunswick helped to verify the theoretical basis of dynamic podzolization models and variability of podzolic processes as a function of soil water saturation and hillslope position. Soil solution chemistry indicated that chelation is active in the top mineral horizons (A). Organo-metallic complexes precipitate mainly in the B horizons. However, these podzolic processes are not active all year. Well-drained podzols are developing mainly during sprins and fall when water percolates abundantly through the soil. During summer, translocation of iron and aluminum combined with dissolved organic matter is rare; it is only active when a long and intense rain event will permit water to percolate as far as the B horizons. In imperfectly drained sites, translocation of podzolic materials is active throughout the frost-free season. Under these soil conditions, water coming from the top soil layers easily reaches the B horizons. In cases where the B horizons are affected by hydromorphic conditions, podzolic processes are modified and precipitated iron in the B horizon is reduced because of the presence of groundwater.

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@ARTICLE { BelangerJolicoeurBouchard1997,
    AUTHOR = { Belanger, N. and Jolicoeur, S. and Bouchard, M. },
    TITLE = { Variabilité des processus podzoliques en fonction de l’état hydrique des profils et de leur position sur les versants: le cas d’un petit bassin versant forestier du centre du Nouveau-Brunswick },
    JOURNAL = { Hommes et Terres du Nord },
    YEAR = { 1997 },
    PAGES = { 183-189 },
    NUMBER = { 3-4 },
    ABSTRACT = { A soil solution study in a forested subcatchment of central New Brunswick helped to verify the theoretical basis of dynamic podzolization models and variability of podzolic processes as a function of soil water saturation and hillslope position. Soil solution chemistry indicated that chelation is active in the top mineral horizons (A). Organo-metallic complexes precipitate mainly in the B horizons. However, these podzolic processes are not active all year. Well-drained podzols are developing mainly during sprins and fall when water percolates abundantly through the soil. During summer, translocation of iron and aluminum combined with dissolved organic matter is rare; it is only active when a long and intense rain event will permit water to percolate as far as the B horizons. In imperfectly drained sites, translocation of podzolic materials is active throughout the frost-free season. Under these soil conditions, water coming from the top soil layers easily reaches the B horizons. In cases where the B horizons are affected by hydromorphic conditions, podzolic processes are modified and precipitated iron in the B horizon is reduced because of the presence of groundwater. },
    ADDRESS = { Dept. de Géosraphie, Univ. du Quebec a Montreal, C.P.8888, Succursale Centre-Ville, Montreal, Que., H3C 3P8, Canada },
    BOOKTITLE = { Variabilité des processus podzoliques en fonction de Tétat hydrique des profils et de leur position sur les versants: Le cas d'un petit bassin-versant forestier du centre du Nouveau-Brunswick (Canada) },
    COMMENT = { Cited By (since 1996): 5 Export Date: 22 March 2010 Source: Scopus },
    ISSN = { 0018439X (ISSN) },
    KEYWORDS = { Canada, New-Brunswick, Podzolic processes, Seasonnal variations, Soil solution chemistry, Topographic location, Water saturation, podzolic processes, podzolization, saturation, soil chemistry, soil solution, topography, Canada, New Brunswick },
    OWNER = { Luc },
    TIMESTAMP = { 2010.03.22 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-0031447607&partnerID=40&md5=192f20d0f89ab21c9507ca6fe75f08af },
}

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