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Påverkan av restaurering på död ved i Lögdeälven och dess biflöden.

This study compared the length, diameter, volume and amount of dead wood in reaches of the Lögde River and its tributaries one year and three years post instream restoration. This was part of a follow up of the ReBorN restoration project. Wood pieces greater than 1 m in length and 0,1 m in diameter was surveyed. The variables were compared between above and below the former highest coastline and between mainstem and tributary. Wood clustering and placement within each reach was also examined. There were no differences in length, diameter, volume and amount dead wood between one year and three years post restoration. However, in some of the reaches individual differences were significant for some of the variables. The result indicates greater difference between one year and three years post restoration in mainstem and above the highest coastline. The clustering of dead wood in the reaches was not coherent, but in a majority of the reaches the dead wood were more clustered year three. It may have been too close in time after restoration to see any effect. It is also possible that the instream restoration is not sufficient to increase the presence of dead wood in the Lögde River. Further follow up is suggested to draw a conclusion.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:umu-189506
Date January 2021
CreatorsHänninen, Anja
PublisherUmeå universitet, Institutionen för ekologi, miljö och geovetenskap
Source SetsDiVA Archive at Upsalla University
LanguageSwedish
Detected LanguageEnglish
TypeStudent thesis, info:eu-repo/semantics/bachelorThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess

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