Impacts of restoration of forestry-drained peatlands on nutrient and organic carbon exports and methane dynamics

Research output: ThesisDoctoral Thesis

Abstract

In this study, the effects of restoration of forestry-drained peatlands on the nutrient and organic carbon exports and methane dynamics of the restored sites are explored. The study consists of four sub-studies. Two of the sub-studies are concerned with the effects on water quality and export of elements of restoration and were conducted on a catchment scale. One of the studies was conducted in the laboratory, and assessed the release of elements from peat samples under anaerobic inundation simulating the effects of a rising water table after restoration or logging. The fourth study was again a field study, in which the differences in methane emissions between undrained, drained and restored spruce swamp forests were assessed. In all, 24 different pristine, drained and restored sites are featured in the study, one site being present in two of the sub-studies. The results indicate potentially large effects of restoration especially on the nutrient rich spruce-dominated sites, which had the highest restoration-induced increases in organic carbon and nutrient exports in the catchment studies, and which also exhibited high methane emissions after restoration, higher than in the undrained or drained state. The results should prompt research into the techniques applied in restoration of such sites and into the processes which lie behind these large effects.
Original languageEnglish
Awarding Institution
  • University of Helsinki
Supervisors/Advisors
  • Vasander, Harri, Supervisor
  • Nieminen, Mika, Supervisor, External person
Award date20 Jan 2017
Place of PublicationHelsinki
Publisher
Print ISBNs978-951-651-555-0
Electronic ISBNs978-951-651-554-3
DOIs
Publication statusPublished - 20 Jan 2017
MoE publication typeG5 Doctoral dissertation (article)

Fields of Science

  • 4112 Forestry
  • suot
  • ennallistminen
  • liukoinen orgaaninen hiili
  • fosfori
  • typpi
  • metaani

Cite this

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title = "Impacts of restoration of forestry-drained peatlands on nutrient and organic carbon exports and methane dynamics",
abstract = "In this study, the effects of restoration of forestry-drained peatlands on the nutrient and organic carbon exports and methane dynamics of the restored sites are explored. The study consists of four sub-studies. Two of the sub-studies are concerned with the effects on water quality and export of elements of restoration and were conducted on a catchment scale. One of the studies was conducted in the laboratory, and assessed the release of elements from peat samples under anaerobic inundation simulating the effects of a rising water table after restoration or logging. The fourth study was again a field study, in which the differences in methane emissions between undrained, drained and restored spruce swamp forests were assessed. In all, 24 different pristine, drained and restored sites are featured in the study, one site being present in two of the sub-studies. The results indicate potentially large effects of restoration especially on the nutrient rich spruce-dominated sites, which had the highest restoration-induced increases in organic carbon and nutrient exports in the catchment studies, and which also exhibited high methane emissions after restoration, higher than in the undrained or drained state. The results should prompt research into the techniques applied in restoration of such sites and into the processes which lie behind these large effects.",
keywords = "4112 Forestry, suot, ennallistminen, liukoinen orgaaninen hiili, fosfori, typpi, metaani",
author = "Markku Koskinen",
year = "2017",
month = "1",
day = "20",
doi = "10.14214/df.232",
language = "English",
isbn = "978-951-651-555-0",
series = "Dissertationes Forestales",
publisher = "Finnish Society of Forest Science",
address = "Finland",
school = "University of Helsinki",

}

Impacts of restoration of forestry-drained peatlands on nutrient and organic carbon exports and methane dynamics. / Koskinen, Markku .

Helsinki : Finnish Society of Forest Science, 2017. 91 p.

Research output: ThesisDoctoral Thesis

TY - THES

T1 - Impacts of restoration of forestry-drained peatlands on nutrient and organic carbon exports and methane dynamics

AU - Koskinen, Markku

PY - 2017/1/20

Y1 - 2017/1/20

N2 - In this study, the effects of restoration of forestry-drained peatlands on the nutrient and organic carbon exports and methane dynamics of the restored sites are explored. The study consists of four sub-studies. Two of the sub-studies are concerned with the effects on water quality and export of elements of restoration and were conducted on a catchment scale. One of the studies was conducted in the laboratory, and assessed the release of elements from peat samples under anaerobic inundation simulating the effects of a rising water table after restoration or logging. The fourth study was again a field study, in which the differences in methane emissions between undrained, drained and restored spruce swamp forests were assessed. In all, 24 different pristine, drained and restored sites are featured in the study, one site being present in two of the sub-studies. The results indicate potentially large effects of restoration especially on the nutrient rich spruce-dominated sites, which had the highest restoration-induced increases in organic carbon and nutrient exports in the catchment studies, and which also exhibited high methane emissions after restoration, higher than in the undrained or drained state. The results should prompt research into the techniques applied in restoration of such sites and into the processes which lie behind these large effects.

AB - In this study, the effects of restoration of forestry-drained peatlands on the nutrient and organic carbon exports and methane dynamics of the restored sites are explored. The study consists of four sub-studies. Two of the sub-studies are concerned with the effects on water quality and export of elements of restoration and were conducted on a catchment scale. One of the studies was conducted in the laboratory, and assessed the release of elements from peat samples under anaerobic inundation simulating the effects of a rising water table after restoration or logging. The fourth study was again a field study, in which the differences in methane emissions between undrained, drained and restored spruce swamp forests were assessed. In all, 24 different pristine, drained and restored sites are featured in the study, one site being present in two of the sub-studies. The results indicate potentially large effects of restoration especially on the nutrient rich spruce-dominated sites, which had the highest restoration-induced increases in organic carbon and nutrient exports in the catchment studies, and which also exhibited high methane emissions after restoration, higher than in the undrained or drained state. The results should prompt research into the techniques applied in restoration of such sites and into the processes which lie behind these large effects.

KW - 4112 Forestry

KW - suot

KW - ennallistminen

KW - liukoinen orgaaninen hiili

KW - fosfori

KW - typpi

KW - metaani

U2 - 10.14214/df.232

DO - 10.14214/df.232

M3 - Doctoral Thesis

SN - 978-951-651-555-0

T3 - Dissertationes Forestales

PB - Finnish Society of Forest Science

CY - Helsinki

ER -