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    Article

    Prehistoric increases in the pH of acid-sensitive Swedish lakes caused by land-use changes

    IN the past few decades, there has been considerable debate about whether vegetational and soil changes associated with changing land-use can cause surface-water acidification in lakes1,2. Although it is now wide...

    I. Renberg, T. Korsman, H. J. B. Birks in Nature (1993)

  2. Article

    Fossil plants in palaeoecology

    Paleoecology of Terrestrial Plants : Basic Principles and Techniques.

    H. J. B. Birks in Nature (1976)