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Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material
Pedogenesis produces fine-grained magnetic minerals that record important information about the ambient climatic conditions present during soil formation. Yet, differentiating the compounding effects of non-climate soil forming factors is a nontrivial challenge that must be overcome to establish soi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5730611/ https://www.ncbi.nlm.nih.gov/pubmed/29242554 http://dx.doi.org/10.1038/s41598-017-17722-2 |
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author | Maxbauer, Daniel P. Feinberg, Joshua M. Fox, David L. Nater, Edward A. |
author_facet | Maxbauer, Daniel P. Feinberg, Joshua M. Fox, David L. Nater, Edward A. |
author_sort | Maxbauer, Daniel P. |
collection | PubMed |
description | Pedogenesis produces fine-grained magnetic minerals that record important information about the ambient climatic conditions present during soil formation. Yet, differentiating the compounding effects of non-climate soil forming factors is a nontrivial challenge that must be overcome to establish soil magnetism as a trusted paleoenvironmental tool. Here, we isolate the influence of vegetation by investigating magnetic properties of soils developing under uniform climate, topography, and parent material but changing vegetation along the forest-prairie ecotone in NW Minnesota. Greater absolute magnetic enhancement in prairie soils is related to some combination of increased production of pedogenic magnetite in prairie soils, increased deposition of detrital magnetite in prairies from eolian processes, or increased dissolution of fine-grained magnetite in forest soils due to increased soil moisture and lower pH. Yet, grain-size specific magnetic properties associated with pedogenesis, for example relative frequency dependence of susceptibility and the ratio of anhysteretic to isothermal remanent magnetization, are insensitive to changing vegetation. Further, quantitative unmixing methods support a fraction of fine-grained pedogenic magnetite that is highly consistent. Together, our findings support climate as a primary control on magnetite production in soils, while demonstrating how careful decomposition of bulk magnetic properties is necessary for proper interpretation of environmental magnetic data. |
format | Online Article Text |
id | pubmed-5730611 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57306112017-12-18 Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material Maxbauer, Daniel P. Feinberg, Joshua M. Fox, David L. Nater, Edward A. Sci Rep Article Pedogenesis produces fine-grained magnetic minerals that record important information about the ambient climatic conditions present during soil formation. Yet, differentiating the compounding effects of non-climate soil forming factors is a nontrivial challenge that must be overcome to establish soil magnetism as a trusted paleoenvironmental tool. Here, we isolate the influence of vegetation by investigating magnetic properties of soils developing under uniform climate, topography, and parent material but changing vegetation along the forest-prairie ecotone in NW Minnesota. Greater absolute magnetic enhancement in prairie soils is related to some combination of increased production of pedogenic magnetite in prairie soils, increased deposition of detrital magnetite in prairies from eolian processes, or increased dissolution of fine-grained magnetite in forest soils due to increased soil moisture and lower pH. Yet, grain-size specific magnetic properties associated with pedogenesis, for example relative frequency dependence of susceptibility and the ratio of anhysteretic to isothermal remanent magnetization, are insensitive to changing vegetation. Further, quantitative unmixing methods support a fraction of fine-grained pedogenic magnetite that is highly consistent. Together, our findings support climate as a primary control on magnetite production in soils, while demonstrating how careful decomposition of bulk magnetic properties is necessary for proper interpretation of environmental magnetic data. Nature Publishing Group UK 2017-12-14 /pmc/articles/PMC5730611/ /pubmed/29242554 http://dx.doi.org/10.1038/s41598-017-17722-2 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Maxbauer, Daniel P. Feinberg, Joshua M. Fox, David L. Nater, Edward A. Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title | Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title_full | Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title_fullStr | Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title_full_unstemmed | Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title_short | Response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
title_sort | response of pedogenic magnetite to changing vegetation in soils developed under uniform climate, topography, and parent material |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5730611/ https://www.ncbi.nlm.nih.gov/pubmed/29242554 http://dx.doi.org/10.1038/s41598-017-17722-2 |
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