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Responses of some Austrian glacier foreland plants to experimentally changed microclimatic conditions

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Abstract

A modified International Tundra Experiment (ITEX) was carried out on the glacier foreland of the Rotmoosferner (Ötztal, Tyrol, Austria) to study the effects of changing the microclimate. Two early successional species (Trifolium pallescens, Poa alpina f. vivipara) and one late successional species (Carex curvula) were transplanted to open-top chambers (OTCs) and to control plots in 1996 and in 1998, respectively. The OTCs were left on the field site also during the winter. As a consequence, the snowmelt occurred at least one week earlier in the OTCs. Growth dynamics were followed over five and three year periods, respectively. The Trifolium and Poa plants were harvested in August 2000.

The growth responses of the two early successional species differed. Trifolium pallescens showed a significantly higher leaf development and a significantly higher total phytomass in the OTCs than in the control plots. Poa alpina f. vivipara was negatively affected by the artificial warming.

A considerable transplantation shock was observed for the Carex curvula plants. The shoot numbers decreased in the OTCs as well as in the control plots. The experiment with this species remained for further monitoring.

Keywords

  • Control Plot
  • Experimental Warming
  • Shoot Number
  • Change Climatic Condition
  • Late Successional Species

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Erschbamer, B. (2001). Responses of some Austrian glacier foreland plants to experimentally changed microclimatic conditions. In: Walther, GR., Burga, C.A., Edwards, P.J. (eds) “Fingerprints” of Climate Change. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8692-4_16

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  • DOI: https://doi.org/10.1007/978-1-4419-8692-4_16

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