Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest
Rotation forestry including clearcutting is a common method of practising forestry in Fennoscandia. Clearcutting in peatland forests markedly increases environmental loading: leaching of nutrients and methane (CH4) and nitrous oxide (N2O) fluxes from soil. Continuous cover forestry has been suggeste...
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ftluke:oai:jukuri.luke.fi:10024/546365 2023-10-09T21:51:26+02:00 Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest Korkiakoski, Mika Ojanen, Paavo Penttilä, Timo Minkkinen, Kari Sarkkola, Sakari Rainne, Juuso Laurila, Tuomas Lohila, Annalea 4100110510 4100110310 Luonnonvarakeskus 108168 true https://jukuri.luke.fi/handle/10024/546365 en eng Elsevier Agricultural and forest meteorology 10.1016/j.agrformet.2020.108168 0168-1923 1873-2240 295 108168 https://jukuri.luke.fi/handle/10024/546365 URN:NBN:fi-fe2020100983619 CC BY 4.0 publication fi=A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä|sv=A1 Originalartikel i en vetenskaplig tidskrift|en=A1 Journal article (refereed), original research| fi=Publisher's version|sv=Publisher's version|en=Publisher's version| ftluke 2023-09-12T20:27:41Z Rotation forestry including clearcutting is a common method of practising forestry in Fennoscandia. Clearcutting in peatland forests markedly increases environmental loading: leaching of nutrients and methane (CH4) and nitrous oxide (N2O) fluxes from soil. Continuous cover forestry has been suggested as an alternative because it does not include clearcutting but partial harvesting. However, impacts of partial harvesting on greenhouse gas fluxes are not well understood and in peatlands have not been studied at all. We conducted a partial harvest by removing 70% of the total stem volume in a mature nutrient-rich peatland forest in Southern Finland. The aim was to investigate how partial harvesting a peatland forest affects CH4 and N2O balances, and how much different surface types contribute to the balances. We used automatic and manual chamber methods to measure fluxes from both harvest and uncut control site. Fluxes were measured from the forest floor, logging trails, and ditches. Fluxes from these surface types were upscaled to obtain net ecosystem-level fluxes during two post-harvest summers (June–August 2016 and 2017). After the harvest, forest floor CH4 fluxes did not change significantly at the harvested site compared to the control site. However, fluxes at logging trails increased significantly. N2O fluxes increased at the harvest site in the post-harvest years, but so did those at the control site as well. Upscaling CH4 fluxes to ecosystem-level indicated that despite their small area (2.4%), emissions from ditches could be large on ecosystem-scale, but their uncertainty was high, while the logging trail CH4 fluxes (20% of the total area) were small. In contrast, N2O fluxes from ditches were low, but the logging trail fluxes comprised 35–38% of the total surface balance. The overall conclusion is that partial harvesting did not cause considerable changes in CH4 and N2O fluxes from a forestry-drained peatland. 2020 Article in Journal/Newspaper Fennoscandia Natural Resources Institute Finland: Jukuri |
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Open Polar |
collection |
Natural Resources Institute Finland: Jukuri |
op_collection_id |
ftluke |
language |
English |
description |
Rotation forestry including clearcutting is a common method of practising forestry in Fennoscandia. Clearcutting in peatland forests markedly increases environmental loading: leaching of nutrients and methane (CH4) and nitrous oxide (N2O) fluxes from soil. Continuous cover forestry has been suggested as an alternative because it does not include clearcutting but partial harvesting. However, impacts of partial harvesting on greenhouse gas fluxes are not well understood and in peatlands have not been studied at all. We conducted a partial harvest by removing 70% of the total stem volume in a mature nutrient-rich peatland forest in Southern Finland. The aim was to investigate how partial harvesting a peatland forest affects CH4 and N2O balances, and how much different surface types contribute to the balances. We used automatic and manual chamber methods to measure fluxes from both harvest and uncut control site. Fluxes were measured from the forest floor, logging trails, and ditches. Fluxes from these surface types were upscaled to obtain net ecosystem-level fluxes during two post-harvest summers (June–August 2016 and 2017). After the harvest, forest floor CH4 fluxes did not change significantly at the harvested site compared to the control site. However, fluxes at logging trails increased significantly. N2O fluxes increased at the harvest site in the post-harvest years, but so did those at the control site as well. Upscaling CH4 fluxes to ecosystem-level indicated that despite their small area (2.4%), emissions from ditches could be large on ecosystem-scale, but their uncertainty was high, while the logging trail CH4 fluxes (20% of the total area) were small. In contrast, N2O fluxes from ditches were low, but the logging trail fluxes comprised 35–38% of the total surface balance. The overall conclusion is that partial harvesting did not cause considerable changes in CH4 and N2O fluxes from a forestry-drained peatland. 2020 |
author2 |
4100110510 4100110310 Luonnonvarakeskus |
format |
Article in Journal/Newspaper |
author |
Korkiakoski, Mika Ojanen, Paavo Penttilä, Timo Minkkinen, Kari Sarkkola, Sakari Rainne, Juuso Laurila, Tuomas Lohila, Annalea |
spellingShingle |
Korkiakoski, Mika Ojanen, Paavo Penttilä, Timo Minkkinen, Kari Sarkkola, Sakari Rainne, Juuso Laurila, Tuomas Lohila, Annalea Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
author_facet |
Korkiakoski, Mika Ojanen, Paavo Penttilä, Timo Minkkinen, Kari Sarkkola, Sakari Rainne, Juuso Laurila, Tuomas Lohila, Annalea |
author_sort |
Korkiakoski, Mika |
title |
Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
title_short |
Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
title_full |
Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
title_fullStr |
Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
title_full_unstemmed |
Impact of partial harvest on CH4 and N2O balances of a drained boreal peatland forest |
title_sort |
impact of partial harvest on ch4 and n2o balances of a drained boreal peatland forest |
publisher |
Elsevier |
url |
https://jukuri.luke.fi/handle/10024/546365 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
Agricultural and forest meteorology 10.1016/j.agrformet.2020.108168 0168-1923 1873-2240 295 108168 https://jukuri.luke.fi/handle/10024/546365 URN:NBN:fi-fe2020100983619 |
op_rights |
CC BY 4.0 |
_version_ |
1779314547141640192 |