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Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China
Distributions of branched glycerol dialkyl glycerol tetraethers (brGDGTs) from soil bacteria have been recently used for reconstructions of past soil pH and air temperature history. Here, we report the brGDGTs distribution patterns from different climate regions of China, using 42 novel brGDGT data...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391447/ https://www.ncbi.nlm.nih.gov/pubmed/30808886 http://dx.doi.org/10.1038/s41598-019-39147-9 |
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author | Wang, M. Zheng, Z. Zong, Y. Man, M. Tian, L. |
author_facet | Wang, M. Zheng, Z. Zong, Y. Man, M. Tian, L. |
author_sort | Wang, M. |
collection | PubMed |
description | Distributions of branched glycerol dialkyl glycerol tetraethers (brGDGTs) from soil bacteria have been recently used for reconstructions of past soil pH and air temperature history. Here, we report the brGDGTs distribution patterns from different climate regions of China, using 42 novel brGDGT data from sub-tropical Chinese soils, compiled alongside previously-published data encompassing different environmental conditions across China. These patterns show high abundance of Ia fraction in soils from humid areas, and high abundance of IIa′ and IIIa′ fractions corresponds to semi-humid or semi-arid conditions, implying a possible relationship with precipitation. The abundance of IIa fraction appears negatively correlated with air temperature. Statistically, the soil pH and temperature factors represent 62% and 30% variations of the total variance respectively. For soils from humid and semi-humid regions, strong correlations between cyclization of branched tetraethers (CBT′) index and soil pH (R(2) = 0.89) and between methylation of branched tetraethers (MBT′(5ME)) index and mean annual temperature (MAT)(R(2) = 0.82) exist. When soils from semi-arid regions are included, the correlations become slightly stronger with pH and significantly weaker with MAT. Our study confirms the usefulness of soil brGDGTs distributions for Quaternary palaeo-climate reconstructions. |
format | Online Article Text |
id | pubmed-6391447 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63914472019-03-01 Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China Wang, M. Zheng, Z. Zong, Y. Man, M. Tian, L. Sci Rep Article Distributions of branched glycerol dialkyl glycerol tetraethers (brGDGTs) from soil bacteria have been recently used for reconstructions of past soil pH and air temperature history. Here, we report the brGDGTs distribution patterns from different climate regions of China, using 42 novel brGDGT data from sub-tropical Chinese soils, compiled alongside previously-published data encompassing different environmental conditions across China. These patterns show high abundance of Ia fraction in soils from humid areas, and high abundance of IIa′ and IIIa′ fractions corresponds to semi-humid or semi-arid conditions, implying a possible relationship with precipitation. The abundance of IIa fraction appears negatively correlated with air temperature. Statistically, the soil pH and temperature factors represent 62% and 30% variations of the total variance respectively. For soils from humid and semi-humid regions, strong correlations between cyclization of branched tetraethers (CBT′) index and soil pH (R(2) = 0.89) and between methylation of branched tetraethers (MBT′(5ME)) index and mean annual temperature (MAT)(R(2) = 0.82) exist. When soils from semi-arid regions are included, the correlations become slightly stronger with pH and significantly weaker with MAT. Our study confirms the usefulness of soil brGDGTs distributions for Quaternary palaeo-climate reconstructions. Nature Publishing Group UK 2019-02-26 /pmc/articles/PMC6391447/ /pubmed/30808886 http://dx.doi.org/10.1038/s41598-019-39147-9 Text en © The Author(s) 2019 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 Wang, M. Zheng, Z. Zong, Y. Man, M. Tian, L. Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title | Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title_full | Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title_fullStr | Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title_full_unstemmed | Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title_short | Distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of China |
title_sort | distributions of soil branched glycerol dialkyl glycerol tetraethers from different climate regions of china |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6391447/ https://www.ncbi.nlm.nih.gov/pubmed/30808886 http://dx.doi.org/10.1038/s41598-019-39147-9 |
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