Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia
Wetland soils affected by permafrost are extensive in subarctic and arctic tundra. However, this fact does not imply these soils have been sufficiently investigated. In particular, studies of element translocation processes are scarce. This study was conducted (i) to determine the relationship betwe...
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Online Access: | https://oceanrep.geomar.de/id/eprint/27148/ https://oceanrep.geomar.de/id/eprint/27148/1/2004_Fiedler-etal-Element_sssaj-68-3-1002.pdf https://doi.org/10.2136/sssaj2004.1002 |
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ftoceanrep:oai:oceanrep.geomar.de:27148 2023-05-15T15:07:08+02:00 Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia Fiedler, S. Wagner, D. Kutzbach, L. Pfeiffer, Eva-Maria 2004 text https://oceanrep.geomar.de/id/eprint/27148/ https://oceanrep.geomar.de/id/eprint/27148/1/2004_Fiedler-etal-Element_sssaj-68-3-1002.pdf https://doi.org/10.2136/sssaj2004.1002 en eng Soil Science Society of America https://oceanrep.geomar.de/id/eprint/27148/1/2004_Fiedler-etal-Element_sssaj-68-3-1002.pdf Fiedler, S., Wagner, D., Kutzbach, L. and Pfeiffer, E. M. (2004) Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia. Soil Science Society of America Journal, 68 (3). pp. 1002-1011. DOI 10.2136/sssaj2004.1002 <https://doi.org/10.2136/sssaj2004.1002>. doi:10.2136/sssaj2004.1002 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2004 ftoceanrep https://doi.org/10.2136/sssaj2004.1002 2023-04-07T15:17:03Z Wetland soils affected by permafrost are extensive in subarctic and arctic tundra. However, this fact does not imply these soils have been sufficiently investigated. In particular, studies of element translocation processes are scarce. This study was conducted (i) to determine the relationship between water and redox regimes in wetland soils in the Siberian tundra, and (ii) to investigate their influence on the distribution of redox sensitive and associate elements (Mn, Fe, P). Major geomorphic units were chosen (microhigh, polygon rim and slope; microlow, polygon center) from two low-centered polygons in the Lena Delta. Within polygons, redox potential, permafrost, and water level were measured during summer in 1999 and 2000 and (related) compared with element distribution. Manganese, Fe, and P accumulations were preferentially observed in aerobic microhighs. Anaerobic conditions in the microlows lead to a mobilization of Mn, Fe, and P. The elements migrate via water and are immobilized at the microhigh, which acts as an oxidative barrier. The element pattern, indicating an upward flux via water along redox gradients, is explained by higher evapotranspiration from soils and vegetation of the microhighs (Typic Aquiturbel) compared with soils and vegetation of the microlows (Typic Historthel). However, in further research this upward transport should be validated using labeled elements. Article in Journal/Newspaper Arctic lena delta permafrost Subarctic Tundra Siberia OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Soil Science Society of America Journal 68 3 1002 1011 |
institution |
Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Wetland soils affected by permafrost are extensive in subarctic and arctic tundra. However, this fact does not imply these soils have been sufficiently investigated. In particular, studies of element translocation processes are scarce. This study was conducted (i) to determine the relationship between water and redox regimes in wetland soils in the Siberian tundra, and (ii) to investigate their influence on the distribution of redox sensitive and associate elements (Mn, Fe, P). Major geomorphic units were chosen (microhigh, polygon rim and slope; microlow, polygon center) from two low-centered polygons in the Lena Delta. Within polygons, redox potential, permafrost, and water level were measured during summer in 1999 and 2000 and (related) compared with element distribution. Manganese, Fe, and P accumulations were preferentially observed in aerobic microhighs. Anaerobic conditions in the microlows lead to a mobilization of Mn, Fe, and P. The elements migrate via water and are immobilized at the microhigh, which acts as an oxidative barrier. The element pattern, indicating an upward flux via water along redox gradients, is explained by higher evapotranspiration from soils and vegetation of the microhighs (Typic Aquiturbel) compared with soils and vegetation of the microlows (Typic Historthel). However, in further research this upward transport should be validated using labeled elements. |
format |
Article in Journal/Newspaper |
author |
Fiedler, S. Wagner, D. Kutzbach, L. Pfeiffer, Eva-Maria |
spellingShingle |
Fiedler, S. Wagner, D. Kutzbach, L. Pfeiffer, Eva-Maria Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
author_facet |
Fiedler, S. Wagner, D. Kutzbach, L. Pfeiffer, Eva-Maria |
author_sort |
Fiedler, S. |
title |
Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
title_short |
Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
title_full |
Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
title_fullStr |
Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
title_full_unstemmed |
Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia |
title_sort |
element redistribution along hydraulic and redox gradients of low-centered polygons, lena delta, northern siberia |
publisher |
Soil Science Society of America |
publishDate |
2004 |
url |
https://oceanrep.geomar.de/id/eprint/27148/ https://oceanrep.geomar.de/id/eprint/27148/1/2004_Fiedler-etal-Element_sssaj-68-3-1002.pdf https://doi.org/10.2136/sssaj2004.1002 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic lena delta permafrost Subarctic Tundra Siberia |
genre_facet |
Arctic lena delta permafrost Subarctic Tundra Siberia |
op_relation |
https://oceanrep.geomar.de/id/eprint/27148/1/2004_Fiedler-etal-Element_sssaj-68-3-1002.pdf Fiedler, S., Wagner, D., Kutzbach, L. and Pfeiffer, E. M. (2004) Element redistribution along hydraulic and redox gradients of low-centered polygons, Lena Delta, northern Siberia. Soil Science Society of America Journal, 68 (3). pp. 1002-1011. DOI 10.2136/sssaj2004.1002 <https://doi.org/10.2136/sssaj2004.1002>. doi:10.2136/sssaj2004.1002 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.2136/sssaj2004.1002 |
container_title |
Soil Science Society of America Journal |
container_volume |
68 |
container_issue |
3 |
container_start_page |
1002 |
op_container_end_page |
1011 |
_version_ |
1766338702012841984 |