To mow or not to mow: reed biofilms as denitrification hotspots in drainage canals

To mow or not to mow: reed biofilms as denitrification hotspots in drainage canals Ecological Engineering 113 (2018) 1–10 Contents lists available at ScienceDirect Ecological Engineering journal homepage: www.elsevier.com/locate/ecoleng To mow or not to mow: reed biofilms as denitrification hotspots in drainage canals Elisa Soana , Anna Gavioli, Elena Tamburini, Elisa Anna Fano, Giuseppe Castaldelli Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy ARTICLE I NFO ABSTRACT Keywords: In shallow-water systems with calm hydrodynamic, dense vegetation stands provide most of the available sur- Biofilms face for periphyton development. The large ratio between biological active surfaces and water volume amplifies Nitrate removal the influence of biofilm activity on water chemistry, resulting the key factor responsible for nitrogen removal Denitrification performance of wetlands and waterways. However, the denitrification capacity of biofilms on emergent mac- N open-channel method rophytes remains understudied, especially if investigated on dead stems during the non-vegetative season. Water velocity The aims of the present study were: 1) to quantify the role of biofilms colonizing dead stems of Phragmites Canal network − − australis in NO mitigation via denitrification in winter (∼11 °C) in a NO -rich drainage canal; 2) to de- 3 3 −1 termine how the biofilm denitrifying capacity varies as a function http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ecological Engineering Elsevier

To mow or not to mow: reed biofilms as denitrification hotspots in drainage canals

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0925-8574
eISSN
1872-6992
D.O.I.
10.1016/j.ecoleng.2017.12.029
Publisher site
See Article on Publisher Site

Abstract

Ecological Engineering 113 (2018) 1–10 Contents lists available at ScienceDirect Ecological Engineering journal homepage: www.elsevier.com/locate/ecoleng To mow or not to mow: reed biofilms as denitrification hotspots in drainage canals Elisa Soana , Anna Gavioli, Elena Tamburini, Elisa Anna Fano, Giuseppe Castaldelli Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy ARTICLE I NFO ABSTRACT Keywords: In shallow-water systems with calm hydrodynamic, dense vegetation stands provide most of the available sur- Biofilms face for periphyton development. The large ratio between biological active surfaces and water volume amplifies Nitrate removal the influence of biofilm activity on water chemistry, resulting the key factor responsible for nitrogen removal Denitrification performance of wetlands and waterways. However, the denitrification capacity of biofilms on emergent mac- N open-channel method rophytes remains understudied, especially if investigated on dead stems during the non-vegetative season. Water velocity The aims of the present study were: 1) to quantify the role of biofilms colonizing dead stems of Phragmites Canal network − − australis in NO mitigation via denitrification in winter (∼11 °C) in a NO -rich drainage canal; 2) to de- 3 3 −1 termine how the biofilm denitrifying capacity varies as a function

Journal

Ecological EngineeringElsevier

Published: Apr 1, 2018

References

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