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Showing 81-83 of 83 results

  1. Water and nitrogen dynamics in an arid woodland

    Arid environments are characterized by spatial and temporal variation in water and nitrogen availability. differences in δ 15 N and δD of four...

    R. D. Evans, J. R. Ehleringer in Oecologia
    Article 01 September 1994

  2. A break in the nitrogen cycle in aridlands? Evidence from δp15N of soils

    We examined the content and isotopic composition of nitrogen within soils of a juniper woodland and found that a cryptobiotic crust composed of...

    R. D. Evans, J. R. Ehleringer in Oecologia
    Article 01 June 1993

  3. Microbial Activity under Seasonal Conditions of Drought in Mediterranean Climates

    The nature of microbiological and biochemical activity in the soils of mediterranean regions is still largely unknown. Some literature exists on the...
    Roger Schaefer in Mediterranean Type Ecosystems
    Chapter 1973
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