Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland
Soil samples from 15 eutrophic, 26 herb-rich, 15 tall-sedge, and 11 low-sedge drained peatland sites were analysed for easily soluble and aluminum, iron, and calcium bound phosphorus (P) using the Chang and Jackson sequential fractionation method. Compared to earlier investigations, where only total...
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ftdoajarticles:oai:doaj.org/article:9fb5fbbe071b47b5a2278eed81c5756d 2023-05-15T17:42:36+02:00 Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland Nieminen, Mika Penttilä, Timo 2004-01-01T00:00:00Z https://doi.org/10.14214/sf.413 https://doaj.org/article/9fb5fbbe071b47b5a2278eed81c5756d EN eng Finnish Society of Forest Science https://www.silvafennica.fi/article/413 https://doaj.org/toc/2242-4075 2242-4075 doi:10.14214/sf.413 https://doaj.org/article/9fb5fbbe071b47b5a2278eed81c5756d Silva Fennica, Vol 38, Iss 3 (2004) Forestry SD1-669.5 article 2004 ftdoajarticles https://doi.org/10.14214/sf.413 2022-12-31T06:41:52Z Soil samples from 15 eutrophic, 26 herb-rich, 15 tall-sedge, and 11 low-sedge drained peatland sites were analysed for easily soluble and aluminum, iron, and calcium bound phosphorus (P) using the Chang and Jackson sequential fractionation method. Compared to earlier investigations, where only total and easily soluble P contents (e.g. NH4OAc or dilute H2SO4 extractable P) in peat have been analysed, significantly higher differences between sites were observed. The eutrophic sites were characterized by four to six-fold greater Ca-bound organic P and two to three-fold greater Ca-bound inorganic P contents than on the other three site type groups, whereas the average Al-bound inorganic P content of the eutrophic sites was only one-third of that at the other site types. Substantial differences between sites were also observed for Fe-bound inorganic P, i.e. two to four-fold greater Fe-P contents were measured at the herb-rich sites compared with the other three site type groups. The stand volume growth in the 67 studied drained peatland sites correlated significantly with Al-bound organic P and Fe-bound inorganic and organic P. The study showed that a detailed fractionation and discrimination of different forms of soil P is important in increasing the understanding of the relationship between P availability and vegetation community types and stand growth on drained peatlands. Article in Journal/Newspaper Northern Finland Directory of Open Access Journals: DOAJ Articles Silva Fennica 38 3 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Forestry SD1-669.5 |
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Forestry SD1-669.5 Nieminen, Mika Penttilä, Timo Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
topic_facet |
Forestry SD1-669.5 |
description |
Soil samples from 15 eutrophic, 26 herb-rich, 15 tall-sedge, and 11 low-sedge drained peatland sites were analysed for easily soluble and aluminum, iron, and calcium bound phosphorus (P) using the Chang and Jackson sequential fractionation method. Compared to earlier investigations, where only total and easily soluble P contents (e.g. NH4OAc or dilute H2SO4 extractable P) in peat have been analysed, significantly higher differences between sites were observed. The eutrophic sites were characterized by four to six-fold greater Ca-bound organic P and two to three-fold greater Ca-bound inorganic P contents than on the other three site type groups, whereas the average Al-bound inorganic P content of the eutrophic sites was only one-third of that at the other site types. Substantial differences between sites were also observed for Fe-bound inorganic P, i.e. two to four-fold greater Fe-P contents were measured at the herb-rich sites compared with the other three site type groups. The stand volume growth in the 67 studied drained peatland sites correlated significantly with Al-bound organic P and Fe-bound inorganic and organic P. The study showed that a detailed fractionation and discrimination of different forms of soil P is important in increasing the understanding of the relationship between P availability and vegetation community types and stand growth on drained peatlands. |
format |
Article in Journal/Newspaper |
author |
Nieminen, Mika Penttilä, Timo |
author_facet |
Nieminen, Mika Penttilä, Timo |
author_sort |
Nieminen, Mika |
title |
Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
title_short |
Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
title_full |
Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
title_fullStr |
Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
title_full_unstemmed |
Inorganic and organic phosphorus fractions in peat from drained mires in northern Finland |
title_sort |
inorganic and organic phosphorus fractions in peat from drained mires in northern finland |
publisher |
Finnish Society of Forest Science |
publishDate |
2004 |
url |
https://doi.org/10.14214/sf.413 https://doaj.org/article/9fb5fbbe071b47b5a2278eed81c5756d |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_source |
Silva Fennica, Vol 38, Iss 3 (2004) |
op_relation |
https://www.silvafennica.fi/article/413 https://doaj.org/toc/2242-4075 2242-4075 doi:10.14214/sf.413 https://doaj.org/article/9fb5fbbe071b47b5a2278eed81c5756d |
op_doi |
https://doi.org/10.14214/sf.413 |
container_title |
Silva Fennica |
container_volume |
38 |
container_issue |
3 |
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1766144492806602752 |