@article{Dienst2004Dynam-8024,
  year={2004},
  doi={10.1016/S0075-9511(04)80019-7},
  title={Dynamik der Schilfröhrichte am Bodensee unter dem Einfluss von Wasserstandsvariationen},
  number={1-2},
  volume={34},
  issn={0075-9511},
  journal={Limnologica},
  pages={29--36},
  author={Dienst, Michael and Schmieder, Klaus and Ostendorp, Wolfgang}
}

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    <dc:creator>Schmieder, Klaus</dc:creator>
    <dc:creator>Ostendorp, Wolfgang</dc:creator>
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    <dcterms:abstract xml:lang="eng">On the basis of different sets of aerial photos the dynamics of the reed bed areas of Lake Constance were investigated in relation to the dynamics of the water levels. The objectives of the study were to quantify the changes of reed areas due to different flood events in the last decades and their recovery in the time periods between these events. The results should give information of the relevance of water level variations on reed bed dynamics and the regeneration times of reed beds after extreme disturbance events. Following the extreme flood at Lake Constance in 1999 the reed belts of Lake Constance lost approximately 30 ha (24%) of the lakeside reed beds. The loss is comparable to the situation in the late 1960s, when approximately 40 ha died back due to the extreme flood in 1965 and the high spring water levels in the subsequent years. In the time period between the extreme floods of 1965 and 1999, the reed areas expanded to nearly 85% of the area before 1965. The expansion rates increased with increasing distance to the flood event of 1965. Especially in periods with series of years of low spring water level the expansion rates were high. The damage degrees of the reed areas in the years 2000 and 2002 showed a clear relation to the elevation (i.e. average water level) of the stands. The damage degree increased with decreasing elevation. Furthermore the regeneration process of severely damaged stands was related to the elevation level of the stands. Whereas stands at high elevation regenerate fast, those at low elevation died off completely in the years after the extreme flood. This supports the hypothesis that the water level fluctuations play a major role in the reed dynamics of Lake Constance. As a consequence of climate change an increase in the frequency of high spring water levels is expected. Thus, it seems unlikely that reed stands will ever expand again to the same area as before 1965.</dcterms:abstract>
    <dcterms:alternative>Effects of water level variations on the dynamics of the reed belts of Lake Constance</dcterms:alternative>
    <dcterms:bibliographicCitation>Zuerst ersch. in: Limnologica 34 (2004), S. 29 36</dcterms:bibliographicCitation>
    <dc:contributor>Dienst, Michael</dc:contributor>
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    <dc:contributor>Ostendorp, Wolfgang</dc:contributor>
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