New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene

Abstract Pyrogenic carbon (PyC) and n-alkane data from sediments in the northern South China Sea reveal variations in material from C4 plants in East Asia over the last ~19 Ma. These data indicate the likely presence of C4 taxa during the earliest part of the record analysed, with C4 species also pr...

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Autores principales:	Bin Zhou, Michael Bird, Hongbo Zheng, Enlou Zhang, Christopher M. Wurster, Luhua Xie, David Taylor
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e2575fdf0aaa4b12a6c4caab4d223078
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spelling	oai:doaj.org-article:e2575fdf0aaa4b12a6c4caab4d2230782021-12-02T15:05:01ZNew sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene10.1038/s41598-017-00285-72045-2322https://doaj.org/article/e2575fdf0aaa4b12a6c4caab4d2230782017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00285-7https://doaj.org/toc/2045-2322Abstract Pyrogenic carbon (PyC) and n-alkane data from sediments in the northern South China Sea reveal variations in material from C4 plants in East Asia over the last ~19 Ma. These data indicate the likely presence of C4 taxa during the earliest part of the record analysed, with C4 species also prominent during the mid and late Miocene and especially the mid Quaternary. Notably the two records diverge after the mid Quaternary, when PyC data indicate a reduced contribution of C4 taxa to biomass burning, whereas plant-derived n-alkanes indicate a greater abundance of C4 plants. This divergence likely reflects differences in the predominant source areas of organic materials accumulating at the coring site, with PyC representing a larger source area that includes material transported in the atmosphere from more temperate (relatively cooler and drier) parts of East Asia. Variations in the relative abundances of C3 and C4 taxa appear to be linked to a combination of environmental factors that have varied temporally and geographically and that are unique to East Asia. A major expansion of C4 biomass in warmer subtropical parts of eastern Asia from ~1 Ma and particularly from ~0.4 Ma is later than other parts of the world.Bin ZhouMichael BirdHongbo ZhengEnlou ZhangChristopher M. WursterLuhua XieDavid TaylorNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bin Zhou Michael Bird Hongbo Zheng Enlou Zhang Christopher M. Wurster Luhua Xie David Taylor New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
description	Abstract Pyrogenic carbon (PyC) and n-alkane data from sediments in the northern South China Sea reveal variations in material from C4 plants in East Asia over the last ~19 Ma. These data indicate the likely presence of C4 taxa during the earliest part of the record analysed, with C4 species also prominent during the mid and late Miocene and especially the mid Quaternary. Notably the two records diverge after the mid Quaternary, when PyC data indicate a reduced contribution of C4 taxa to biomass burning, whereas plant-derived n-alkanes indicate a greater abundance of C4 plants. This divergence likely reflects differences in the predominant source areas of organic materials accumulating at the coring site, with PyC representing a larger source area that includes material transported in the atmosphere from more temperate (relatively cooler and drier) parts of East Asia. Variations in the relative abundances of C3 and C4 taxa appear to be linked to a combination of environmental factors that have varied temporally and geographically and that are unique to East Asia. A major expansion of C4 biomass in warmer subtropical parts of eastern Asia from ~1 Ma and particularly from ~0.4 Ma is later than other parts of the world.
format	article
author	Bin Zhou Michael Bird Hongbo Zheng Enlou Zhang Christopher M. Wurster Luhua Xie David Taylor
author_facet	Bin Zhou Michael Bird Hongbo Zheng Enlou Zhang Christopher M. Wurster Luhua Xie David Taylor
author_sort	Bin Zhou
title	New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
title_short	New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
title_full	New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
title_fullStr	New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
title_full_unstemmed	New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene
title_sort	new sedimentary evidence reveals a unique history of c4 biomass in continental east asia since the early miocene
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e2575fdf0aaa4b12a6c4caab4d223078
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New sedimentary evidence reveals a unique history of C4 biomass in continental East Asia since the early Miocene

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