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Long-Term Responses of River-Margin Vegetation to Water-Level Regulation

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Science  02 May 1997:
Vol. 276, Issue 5313, pp. 798-800
DOI: 10.1126/science.276.5313.798

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Abstract

The long-term effect of water-level regulation on riparian plant communities was assessed for storage reservoirs and run-of-river impoundments. Soon after the onset of regulation, there were few species and sparse vegetation cover, regardless of whether the new water level intersected former upland or riparian vegetation. In the longer term, an impoverished vegetation was maintained by storage reservoirs, whereas in run-of-river impoundments, some community characteristics deteriorated and others recovered compared to adjacent free-flowing rivers.

  • * To whom correspondence should be addressed. E-mail: christer{at}ekbot.umu.se

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