Diatoms in peat : dominant producers in a changing environment?
(2009) In Soil Biology and Biochemistry 41(8). p.1764-1766- Abstract
- Changes in hydrology and temperature can induce rapid changes in boreal wetland ecosystems. Factors such as hydrosere, permafrost, climate and human interference may disturb the prevailing mire vegetation, whereby a new dominant assemblage can develop. At the transition from one vegetation type to another, the old vegetation may be suppressed, die out or start to decay, and some time may pass until a new mire vegetation is fully established. Here, we demonstrate that diatoms may thrive during such transitions, creating isolated and shallow peat layers with significantly elevated biogenic silica content. Biogenic silica and other nutrients that would otherwise be lost during mineralization in runoff are in this way retained in the... (More)
- Changes in hydrology and temperature can induce rapid changes in boreal wetland ecosystems. Factors such as hydrosere, permafrost, climate and human interference may disturb the prevailing mire vegetation, whereby a new dominant assemblage can develop. At the transition from one vegetation type to another, the old vegetation may be suppressed, die out or start to decay, and some time may pass until a new mire vegetation is fully established. Here, we demonstrate that diatoms may thrive during such transitions, creating isolated and shallow peat layers with significantly elevated biogenic silica content. Biogenic silica and other nutrients that would otherwise be lost during mineralization in runoff are in this way retained in the ecosystem. Our results imply that silica storage originating from diatoms can be expected to increase in today’s rapidly changing boreal wetlands. The impacts on transport of Si through boreal watersheds are currently unknown. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1444549
- author
- Kokfelt, Ulla LU ; Struyf, Eric LU and Randsalu Wendrup, Linda LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Climate and environmental change, Silica cycling, Dominant producers, Diatoms, Boreal wetlands
- in
- Soil Biology and Biochemistry
- volume
- 41
- issue
- 8
- pages
- 1764 - 1766
- publisher
- Elsevier
- external identifiers
-
- wos:000268920400025
- scopus:67650084382
- ISSN
- 0038-0717
- DOI
- 10.1016/j.soilbio.2009.05.012
- project
- Climate Initiative
- language
- English
- LU publication?
- yes
- id
- 1ca9250c-d9e0-41c8-a457-4823fbd75037 (old id 1444549)
- date added to LUP
- 2016-04-04 10:05:19
- date last changed
- 2022-02-06 05:12:09
@article{1ca9250c-d9e0-41c8-a457-4823fbd75037,
abstract = {{Changes in hydrology and temperature can induce rapid changes in boreal wetland ecosystems. Factors such as hydrosere, permafrost, climate and human interference may disturb the prevailing mire vegetation, whereby a new dominant assemblage can develop. At the transition from one vegetation type to another, the old vegetation may be suppressed, die out or start to decay, and some time may pass until a new mire vegetation is fully established. Here, we demonstrate that diatoms may thrive during such transitions, creating isolated and shallow peat layers with significantly elevated biogenic silica content. Biogenic silica and other nutrients that would otherwise be lost during mineralization in runoff are in this way retained in the ecosystem. Our results imply that silica storage originating from diatoms can be expected to increase in today’s rapidly changing boreal wetlands. The impacts on transport of Si through boreal watersheds are currently unknown.}},
author = {{Kokfelt, Ulla and Struyf, Eric and Randsalu Wendrup, Linda}},
issn = {{0038-0717}},
keywords = {{Climate and environmental change; Silica cycling; Dominant producers; Diatoms; Boreal wetlands}},
language = {{eng}},
number = {{8}},
pages = {{1764--1766}},
publisher = {{Elsevier}},
series = {{Soil Biology and Biochemistry}},
title = {{Diatoms in peat : dominant producers in a changing environment?}},
url = {{http://dx.doi.org/10.1016/j.soilbio.2009.05.012}},
doi = {{10.1016/j.soilbio.2009.05.012}},
volume = {{41}},
year = {{2009}},
}