Effect of forest drainage on the peat bulk density of pine mires in Finland
Drainage of peatlands for forestry causes the water level to draw down, which results in subsidence of peat surface and increased peat bulk density (D b ). Later on, an accelerated rate of organic matter decomposition and the pressure of the growing tree stand further compacts the peat. We measured...
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1998
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crcansciencepubl:10.1139/x97-206 2024-09-15T18:25:40+00:00 Effect of forest drainage on the peat bulk density of pine mires in Finland Minkkinen, Kari Laine, Jukka 1998 http://dx.doi.org/10.1139/x97-206 http://www.nrcresearchpress.com/doi/pdf/10.1139/x97-206 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 28, issue 2, page 178-186 ISSN 0045-5067 1208-6037 journal-article 1998 crcansciencepubl https://doi.org/10.1139/x97-206 2024-08-01T04:10:00Z Drainage of peatlands for forestry causes the water level to draw down, which results in subsidence of peat surface and increased peat bulk density (D b ). Later on, an accelerated rate of organic matter decomposition and the pressure of the growing tree stand further compacts the peat. We measured the peat D b (0-80 cm) in 180 undrained and 209 drained (ca. 60-year-old) peatland sites representing three nutrient levels of pine fens and five macroclimatic regions from southern to northern Finland. D b was affected by climatic conditions, nutrient status, and the tree stand volume of the site. D b was significantly higher in drained than in undrained sites in all regions and site types: the mean (±SD) D b in the whole material was 82 ± 23 kg ·m -3 for the undrained sites and 133 ± 22 kg ·m -3 for the drained sites. The increase in D b was significant in all regions down to a depth of 60 cm and in southern Finland, even deeper than 80 cm. When the increase in carbon concentration was taken into consideration, the average postdrainage increase in the D b of the 0-80 cm layer equalled the amount of carbon in the 54-cm layer in average undrained peat. As the reported subsidences of peat surface in forest drainage areas in Finland are usually below this limit, the carbon storage of peat is likely to increase after drainage. Article in Journal/Newspaper Northern Finland Canadian Science Publishing Canadian Journal of Forest Research 28 2 178 186 |
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Canadian Science Publishing |
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English |
description |
Drainage of peatlands for forestry causes the water level to draw down, which results in subsidence of peat surface and increased peat bulk density (D b ). Later on, an accelerated rate of organic matter decomposition and the pressure of the growing tree stand further compacts the peat. We measured the peat D b (0-80 cm) in 180 undrained and 209 drained (ca. 60-year-old) peatland sites representing three nutrient levels of pine fens and five macroclimatic regions from southern to northern Finland. D b was affected by climatic conditions, nutrient status, and the tree stand volume of the site. D b was significantly higher in drained than in undrained sites in all regions and site types: the mean (±SD) D b in the whole material was 82 ± 23 kg ·m -3 for the undrained sites and 133 ± 22 kg ·m -3 for the drained sites. The increase in D b was significant in all regions down to a depth of 60 cm and in southern Finland, even deeper than 80 cm. When the increase in carbon concentration was taken into consideration, the average postdrainage increase in the D b of the 0-80 cm layer equalled the amount of carbon in the 54-cm layer in average undrained peat. As the reported subsidences of peat surface in forest drainage areas in Finland are usually below this limit, the carbon storage of peat is likely to increase after drainage. |
format |
Article in Journal/Newspaper |
author |
Minkkinen, Kari Laine, Jukka |
spellingShingle |
Minkkinen, Kari Laine, Jukka Effect of forest drainage on the peat bulk density of pine mires in Finland |
author_facet |
Minkkinen, Kari Laine, Jukka |
author_sort |
Minkkinen, Kari |
title |
Effect of forest drainage on the peat bulk density of pine mires in Finland |
title_short |
Effect of forest drainage on the peat bulk density of pine mires in Finland |
title_full |
Effect of forest drainage on the peat bulk density of pine mires in Finland |
title_fullStr |
Effect of forest drainage on the peat bulk density of pine mires in Finland |
title_full_unstemmed |
Effect of forest drainage on the peat bulk density of pine mires in Finland |
title_sort |
effect of forest drainage on the peat bulk density of pine mires in finland |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/x97-206 http://www.nrcresearchpress.com/doi/pdf/10.1139/x97-206 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_source |
Canadian Journal of Forest Research volume 28, issue 2, page 178-186 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x97-206 |
container_title |
Canadian Journal of Forest Research |
container_volume |
28 |
container_issue |
2 |
container_start_page |
178 |
op_container_end_page |
186 |
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1810466165578792960 |