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Version 3.22
Publication Type J
Authors Glaeser, LC; Vitt, DH; Ebbs, S
Author Full Name Glaeser, Lilyan C.; Vitt, Dale H.; Ebbs, Stephen
Title Responses of the wetland grass, Beckmannia syzigachne, to salinity and soil wetness: Consequences for wetland reclamation in the oil sands area of Alberta, Canada
Language English
Document Type Article
Author Keywords Beckmannia syzigachne; Reclamation; Oil sands; Sodium tolerance; Physiological responses
Abstract Reclamation of the boreal landscape, including both wetlands and uplands integrated into complex watersheds, has presented a challenge over the past decade with few attempts. Relevant today is wetland/peatland reclamation on reclaimed landscapes positioned on saline sand deposits left on In-pits' from open pit oil sands mining. Part of the reclamation challenge lies in choosing characteristic species that are tolerant of conditions present on the reclaimed landscape. Species need to both survive harsh environmental conditions and facilitate succession from mineral-based wetlands (marshes) to peat-based ones (fens). A two-by-six factorial experiment was implemented in a greenhouse under two moisture levels: saturation to 2.5 cm below the soil level (high) and saturation to 7.5 cm below the soil level (low) and six salinity treatments: 5 mg L-1 Na+, 400 mg L-1 Na+, 850 mg L-1 Na+, 1250 mg L-1 Na+, 1850 mg L-1 Na+, and 2700 mg L-1 Na+. Water level affected total biomass, with the low water level producing higher biomass. Sodium concentration affected biomass, root:shoot ratio, stomatal conductance, evapotranspiration, and photosynthetic rate; all responses were similar for the lower Na concentrations and declined after the 850 mg L-1 treatment. We conclude that B. syzigachne tolerates Na levels of 850 mg L-1 and survives with diminished performance at treatment of 850 mg L-1 up to 2700 mg L-1. With these salinity responses, along with broad tolerance to water levels, B. syzigachne has great potential as an early colonizing annual species for conditions predicted to occur in many of the in-pit reclamation designs. (C) 2015 Elsevier By. All rights reserved.
Author Address [Glaeser, Lilyan C.] So Illinois Univ, Dept Plant Biol, Carbondale, IL 62901 USA; So Illinois Univ, Ctr Ecol, Carbondale, IL 62901 USA
Reprint Address Glaeser, LC (reprint author), So Illinois Univ, Dept Plant Biol, Carbondale, IL 62901 USA.
E-mail Address lglaeser@siu.edu
ORCID Number Ebbs, Stephen/0000-0003-4042-9234
Funding Agency and Grant Number Syncrude Canada Ltd. [4600101055]
Funding Text Funding for this project was provided by Syncrude Canada Ltd. (Contract #4600101055), for which we are grateful. We wish to acknowledge Melissa House (SIUC) for technical support, as well as Jessica Piercey and Carla Wytrykush (Syncrude Canada, Ltd.) for logistic assistance. The two reviewers provided helpful suggestions for which we are grateful.
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Cited Reference Count 34
Times Cited 4
Total Times Cited Count (WoS, BCI, and CSCD) 4
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0925-8574
29-Character Source Abbreviation ECOL ENG
ISO Source Abbreviation Ecol. Eng.
Publication Date JAN
Year Published 2016
Volume 86
Beginning Page 24
Ending Page 30
Digital Object Identifier (DOI) 10.1016/j.ecoleng.2015.10.009
Page Count 7
Web of Science Category Ecology; Engineering, Environmental; Environmental Sciences
Subject Category Environmental Sciences & Ecology; Engineering
Document Delivery Number CZ4SS
Unique Article Identifier WOS:000367093600004
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