The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland
To harvest Sphagnum on a cyclic basis and rapidly accumulate biomass, active water management is necessary. The goal of this study is to determine the hydrological conditions that will maximise CO2 uptake in Sphagnum farming basins following the moss-layer transfer technique. Plot CO2 uptake doubled...
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International Mire Conservation Group and International Peat Society
2017-07-01
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Series: | Mires and Peat |
Online Access: | http://mires-and-peat.net/media/map20/map_20_05.pdf |
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doaj-40c92b241896470582f13e0ba56320562020-11-25T01:50:53ZengInternational Mire Conservation Group and International Peat SocietyMires and Peat1819-754X2017-07-01200511510.19189/MaP.2016.OMB.258The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatlandC.M. Brown0M. Strack1J.S. Price2Department of Geography and Environmental Management, University of Waterloo, CanadaDepartment of Geography and Environmental Management, University of Waterloo, CanadaDepartment of Geography and Environmental Management, University of Waterloo, CanadaTo harvest Sphagnum on a cyclic basis and rapidly accumulate biomass, active water management is necessary. The goal of this study is to determine the hydrological conditions that will maximise CO2 uptake in Sphagnum farming basins following the moss-layer transfer technique. Plot CO2 uptake doubled from the first growing season to the second, but growth was not uniform across the site. Results indicate that the seasonal oscillations in water table (WT) position were more important than actual WT position for estimating Sphagnum ground cover and CO2 uptake when the seasonal WT is shallow (< -25 cm). Plots with higher productivity had a WT range (seasonal maximum – minimum) less than 15 cm, a WT position which did not fluctuate more than ± 7.5 cm, and a low WT standard deviation. Each basin was a CO2 source during the second growing season, and seasonal modelled NEE ranged from 107.1 to 266.8 g CO2 m-2. Decomposition from the straw mulch accounted for over half of seasonal respiration, and the site is expected to become a CO2 sink as the straw mulch decomposes and moss cover increases. This study highlights the importance of maintaining stable moisture conditions to increase Sphagnum growth and CO2 sink functions.http://mires-and-peat.net/media/map20/map_20_05.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
C.M. Brown M. Strack J.S. Price |
spellingShingle |
C.M. Brown M. Strack J.S. Price The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland Mires and Peat |
author_facet |
C.M. Brown M. Strack J.S. Price |
author_sort |
C.M. Brown |
title |
The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland |
title_short |
The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland |
title_full |
The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland |
title_fullStr |
The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland |
title_full_unstemmed |
The effects of water management on the CO2 uptake of Sphagnum moss in a reclaimed peatland |
title_sort |
effects of water management on the co2 uptake of sphagnum moss in a reclaimed peatland |
publisher |
International Mire Conservation Group and International Peat Society |
series |
Mires and Peat |
issn |
1819-754X |
publishDate |
2017-07-01 |
description |
To harvest Sphagnum on a cyclic basis and rapidly accumulate biomass, active water management is necessary. The goal of this study is to determine the hydrological conditions that will maximise CO2 uptake in Sphagnum farming basins following the moss-layer transfer technique. Plot CO2 uptake doubled from the first growing season to the second, but growth was not uniform across the site. Results indicate that the seasonal oscillations in water table (WT) position were more important than actual WT position for estimating Sphagnum ground cover and CO2 uptake when the seasonal WT is shallow (< -25 cm). Plots with higher productivity had a WT range (seasonal maximum – minimum) less than 15 cm, a WT position which did not fluctuate more than ± 7.5 cm, and a low WT standard deviation. Each basin was a CO2 source during the second growing season, and seasonal modelled NEE ranged from 107.1 to 266.8 g CO2 m-2. Decomposition from the straw mulch accounted for over half of seasonal respiration, and the site is expected to become a CO2 sink as the straw mulch decomposes and moss cover increases. This study highlights the importance of maintaining stable moisture conditions to increase Sphagnum growth and CO2 sink functions. |
url |
http://mires-and-peat.net/media/map20/map_20_05.pdf |
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