Die Ursachen des Röhrichtrückgangs am Bodensee-Untersee

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dc.contributor.authorOstendorp, Wolfgang
dc.date.accessioned2011-03-24T17:45:20Zdeu
dc.date.available2011-03-24T17:45:20Zdeu
dc.date.issued1990deu
dc.description.abstractReed decline phenomena affected the reed belts (Phragmitetum typicum) of Lake Constance-Untersee between 1954 and c. 1983: about 88 ha (= 23% of the total area of reedswamp in 1954) were lost. The temporal an spatial patterns of the regression were investigated by a quantitative evaluation of aerophotos. Nine hypotheses were tested whether they could explain these patterns. As a result it was confirmed that the "pelagic eutrophication", the "nutrient enrichment of the reedbed sediments" and the "existence of detrimental redox conditions in the upper sediment layers" are no convincing concepts. Damage of the lakeside reedbelts by a f100d disaster, two heavy storms and a hailstorm in June 1965, have been found to be the only factors which coincide with the patterns of the regression. As a consequence, the concept of reedbelt management and maintenance should be modified, giving more protection against mechanical damage and bank erosion.eng
dc.description.versionpublished
dc.format.mimetypeapplication/pdfdeu
dc.identifier.citationZuerst ersch. in: Carolinea 48 (1990), S. 85-102deu
dc.identifier.ppn281176841deu
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/8642
dc.language.isodeudeu
dc.legacy.dateIssued2008deu
dc.rightsAttribution-NonCommercial-NoDerivs 2.0 Generic
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/
dc.subject.ddc570deu
dc.titleDie Ursachen des Röhrichtrückgangs am Bodensee-Unterseedeu
dc.title.alternativeThe causal factors of reed decline in Lake Constance-Untersee (West-Germany)eng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
kops.citation.bibtex
@article{Ostendorp1990Ursac-8642,
  year={1990},
  title={Die Ursachen des Röhrichtrückgangs am Bodensee-Untersee},
  volume={48},
  journal={Carolinea},
  pages={85--102},
  author={Ostendorp, Wolfgang}
}
kops.citation.iso690OSTENDORP, Wolfgang, 1990. Die Ursachen des Röhrichtrückgangs am Bodensee-Untersee. In: Carolinea. 1990, 48, pp. 85-102deu
kops.citation.iso690OSTENDORP, Wolfgang, 1990. Die Ursachen des Röhrichtrückgangs am Bodensee-Untersee. In: Carolinea. 1990, 48, pp. 85-102eng
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kops.description.abstractZwischen 1954 und etwa 1983 wurden die Schilfgürtel des Bodensee-Untersees vom sog. "Schilfsterben" erfaßt; 88 ha (=23 % der gesamten Seeuferröhrichtfläche) gingen verloren. Mit Hilfe von quantitativen Luftbildauswertungen wurden die räumlichen und zeitlichen Rückgangsmuster untersucht. Neun in der Literatur vorbindliche Rückgangshypothesen wurden überprüft, ob und inwieweit sie diese Rückgangsmuster erklären können. Die "Eutrophierung des Untersees" und die "Nährstoffanreicherung der Röhrichtsedimente" lieferten ebenso wenig einen überzeugenden Erklärungsansatz wie "negative redoxchemische Bedingungen in den Sedimentoberschichten". Hingegen kann der seewärtige Rückgang ursächlich auf das Hochwasser, zwei schwere Sturmereignisse und einen Hagelschlag im Juni 1965 zurückgeführt werden. Als Konsequenz aus diesen neuen Ergebnissen sollte das bisherige Schilfpflegekonzept geändert werden, indem die seewärtige Schilffront besser vor mechanischen Belastungen und vor Ufererosion geschützt wird.deu
kops.description.openAccessopenaccessgreen
kops.flag.knbibliographyfalse
kops.identifier.nbnurn:nbn:de:bsz:352-opus-56804deu
kops.opus.id5680deu
kops.sourcefieldCarolinea. 1990, <b>48</b>, pp. 85-102deu
kops.sourcefield.plainCarolinea. 1990, 48, pp. 85-102deu
kops.sourcefield.plainCarolinea. 1990, 48, pp. 85-102eng
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relation.isAuthorOfPublication.latestForDiscoverye0cac080-69f0-4d04-a73d-84a4643eb6b4
source.bibliographicInfo.fromPage85
source.bibliographicInfo.toPage102
source.bibliographicInfo.volume48
source.periodicalTitleCarolinea

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