Mineralization and decomposition rates in restored pine fens

Oili Tarvainen, Anna Laine, Mari Peltonen, Anne Tolvanen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Growing public interest in conserving peatlands has created a need for restoration and rapid indicators of progress in peat formation. Vegetation and hydrological indicators are commonly assessed, but changes in mineralization and decomposition rates might better indicate when peat formation is underway in restored peatlands. In Finland, we investigated differences in mineralization and decomposition in the upper peat layer of five undrained and eight drained Pinus-dominated fens from 2006 to 2009. Forestry-drained fens were restored in 2007 by harvesting either whole trees or only stems, and by damming and filling ditches. Before restoration, net N mineralization rate was slightly higher in the drained than in undrained fens, whereas soil pH and Betula leaf litter decomposition rate were lower. After restoration, net N mineralization rate was similar for the undrained and restored fens, except near ditches after stem harvest. Also, soil pH and decomposition rate of Betula leaf litter became similar for undrained and restored fens. We conclude that whole tree harvest is a more suitable method for peatland restoration than stem harvest and that mineralization and decomposition rates are suitable indicators for peat formation after restoration.
Original languageEnglish
JournalRestoration Ecology
Volume21
Issue number5
Pages (from-to)592-599
Number of pages8
ISSN1061-2971
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 4112 Forestry

Cite this

Tarvainen, Oili ; Laine, Anna ; Peltonen, Mari ; Tolvanen, Anne. / Mineralization and decomposition rates in restored pine fens. In: Restoration Ecology. 2013 ; Vol. 21, No. 5. pp. 592-599.
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title = "Mineralization and decomposition rates in restored pine fens",
abstract = "Growing public interest in conserving peatlands has created a need for restoration and rapid indicators of progress in peat formation. Vegetation and hydrological indicators are commonly assessed, but changes in mineralization and decomposition rates might better indicate when peat formation is underway in restored peatlands. In Finland, we investigated differences in mineralization and decomposition in the upper peat layer of five undrained and eight drained Pinus-dominated fens from 2006 to 2009. Forestry-drained fens were restored in 2007 by harvesting either whole trees or only stems, and by damming and filling ditches. Before restoration, net N mineralization rate was slightly higher in the drained than in undrained fens, whereas soil pH and Betula leaf litter decomposition rate were lower. After restoration, net N mineralization rate was similar for the undrained and restored fens, except near ditches after stem harvest. Also, soil pH and decomposition rate of Betula leaf litter became similar for undrained and restored fens. We conclude that whole tree harvest is a more suitable method for peatland restoration than stem harvest and that mineralization and decomposition rates are suitable indicators for peat formation after restoration.",
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Mineralization and decomposition rates in restored pine fens. / Tarvainen, Oili; Laine, Anna; Peltonen, Mari; Tolvanen, Anne.

In: Restoration Ecology, Vol. 21, No. 5, 2013, p. 592-599.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Mineralization and decomposition rates in restored pine fens

AU - Tarvainen, Oili

AU - Laine, Anna

AU - Peltonen, Mari

AU - Tolvanen, Anne

PY - 2013

Y1 - 2013

N2 - Growing public interest in conserving peatlands has created a need for restoration and rapid indicators of progress in peat formation. Vegetation and hydrological indicators are commonly assessed, but changes in mineralization and decomposition rates might better indicate when peat formation is underway in restored peatlands. In Finland, we investigated differences in mineralization and decomposition in the upper peat layer of five undrained and eight drained Pinus-dominated fens from 2006 to 2009. Forestry-drained fens were restored in 2007 by harvesting either whole trees or only stems, and by damming and filling ditches. Before restoration, net N mineralization rate was slightly higher in the drained than in undrained fens, whereas soil pH and Betula leaf litter decomposition rate were lower. After restoration, net N mineralization rate was similar for the undrained and restored fens, except near ditches after stem harvest. Also, soil pH and decomposition rate of Betula leaf litter became similar for undrained and restored fens. We conclude that whole tree harvest is a more suitable method for peatland restoration than stem harvest and that mineralization and decomposition rates are suitable indicators for peat formation after restoration.

AB - Growing public interest in conserving peatlands has created a need for restoration and rapid indicators of progress in peat formation. Vegetation and hydrological indicators are commonly assessed, but changes in mineralization and decomposition rates might better indicate when peat formation is underway in restored peatlands. In Finland, we investigated differences in mineralization and decomposition in the upper peat layer of five undrained and eight drained Pinus-dominated fens from 2006 to 2009. Forestry-drained fens were restored in 2007 by harvesting either whole trees or only stems, and by damming and filling ditches. Before restoration, net N mineralization rate was slightly higher in the drained than in undrained fens, whereas soil pH and Betula leaf litter decomposition rate were lower. After restoration, net N mineralization rate was similar for the undrained and restored fens, except near ditches after stem harvest. Also, soil pH and decomposition rate of Betula leaf litter became similar for undrained and restored fens. We conclude that whole tree harvest is a more suitable method for peatland restoration than stem harvest and that mineralization and decomposition rates are suitable indicators for peat formation after restoration.

KW - 4112 Forestry

U2 - 10.1111/j.1526-100X.2012.00930.x

DO - 10.1111/j.1526-100X.2012.00930.x

M3 - Article

VL - 21

SP - 592

EP - 599

JO - Restoration Ecology

JF - Restoration Ecology

SN - 1061-2971

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