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  1. Article

    Open Access

    Can isoprenoids in leaves and roots of plants serve as biomarkers for past vegetation changes? A case study from the Ecuadorian Andes

    Large-scale clear-cutting and burning caused the altitude of the natural upper forest line (UFL) in the Northern Ecuadorian Andes to decline to the point that its ‘natural’ position is now uncertain. To obtain...

    Boris Jansen, Klaas G. J. Nierop, Femke H. Tonneijck… in Plant and Soil (2007)

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    Article

    Fate of Tannins in Corsican Pine Litter

    Tannins are ubiquitous in higher plants and also in litter and soils where they affect many biogeochemical processes. Despite this well-recognized role, their fate in litter and mineral soils is hardly known, ...

    Klaas G. J. Nierop, Jacobus M. Verstraten in Journal of Chemical Ecology (2006)

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    Article

    The Complementarity of Extractable and Ester-Bound Lipids in a Soil Profile Under Pine

    Extractable and solvent insoluble, ester-bound lipids were analysed in an acid, sandy soil profile under Corsican pine. The n-alkanes and alkanoic acids from the soil profile showed rather poor correlations with ...

    Klaas G. J. Nierop, Boris Jansen, Jos A. Hageman, Jacobus M. Verstraten in Plant and Soil (2006)