Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions

Abstract The net ecosystem CO2 exchange is the result of the imbalance between the assimilation process (gross primary production, GPP) and ecosystem respiration (RE). The aim of this study was to investigate temperature sensitivities of these processes and the effect of climate warming on the annua...

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Autores principales:	Zhiyuan Zhang, Renduo Zhang, Alessandro Cescatti, Georg Wohlfahrt, Nina Buchmann, Juan Zhu, Guanhong Chen, Fernando Moyano, Jukka Pumpanen, Takashi Hirano, Kentaro Takagi, Lutz Merbold
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5370c72f695e403788d9af5bc5cdf655
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spelling	oai:doaj.org-article:5370c72f695e403788d9af5bc5cdf6552021-12-02T12:30:12ZEffect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions10.1038/s41598-017-03386-52045-2322https://doaj.org/article/5370c72f695e403788d9af5bc5cdf6552017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03386-5https://doaj.org/toc/2045-2322Abstract The net ecosystem CO2 exchange is the result of the imbalance between the assimilation process (gross primary production, GPP) and ecosystem respiration (RE). The aim of this study was to investigate temperature sensitivities of these processes and the effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions. A database of 403 site-years of ecosystem flux data at 101 sites in the world was collected and analyzed. Temperature sensitivities of rates of RE and GPP were quantified with Q 10, defined as the increase of RE (or GPP) rates with a temperature rise of 10 °C. Results showed that on the annual time scale, the intrinsic temperature sensitivity of GPP (Q 10sG ) was higher than or equivalent to the intrinsic temperature sensitivity of RE (Q 10sR ). Q 10sG was negatively correlated to the mean annual temperature (MAT), whereas Q 10sR was independent of MAT. The analysis of the current temperature sensitivities and net ecosystem production suggested that temperature rise might enhance the CO2 sink of terrestrial ecosystems both in the boreal and temperate regions. In addition, ecosystems in these regions with different plant functional types should sequester more CO2 with climate warming.Zhiyuan ZhangRenduo ZhangAlessandro CescattiGeorg WohlfahrtNina BuchmannJuan ZhuGuanhong ChenFernando MoyanoJukka PumpanenTakashi HiranoKentaro TakagiLutz MerboldNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhiyuan Zhang Renduo Zhang Alessandro Cescatti Georg Wohlfahrt Nina Buchmann Juan Zhu Guanhong Chen Fernando Moyano Jukka Pumpanen Takashi Hirano Kentaro Takagi Lutz Merbold Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
description	Abstract The net ecosystem CO2 exchange is the result of the imbalance between the assimilation process (gross primary production, GPP) and ecosystem respiration (RE). The aim of this study was to investigate temperature sensitivities of these processes and the effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions. A database of 403 site-years of ecosystem flux data at 101 sites in the world was collected and analyzed. Temperature sensitivities of rates of RE and GPP were quantified with Q 10, defined as the increase of RE (or GPP) rates with a temperature rise of 10 °C. Results showed that on the annual time scale, the intrinsic temperature sensitivity of GPP (Q 10sG ) was higher than or equivalent to the intrinsic temperature sensitivity of RE (Q 10sR ). Q 10sG was negatively correlated to the mean annual temperature (MAT), whereas Q 10sR was independent of MAT. The analysis of the current temperature sensitivities and net ecosystem production suggested that temperature rise might enhance the CO2 sink of terrestrial ecosystems both in the boreal and temperate regions. In addition, ecosystems in these regions with different plant functional types should sequester more CO2 with climate warming.
format	article
author	Zhiyuan Zhang Renduo Zhang Alessandro Cescatti Georg Wohlfahrt Nina Buchmann Juan Zhu Guanhong Chen Fernando Moyano Jukka Pumpanen Takashi Hirano Kentaro Takagi Lutz Merbold
author_facet	Zhiyuan Zhang Renduo Zhang Alessandro Cescatti Georg Wohlfahrt Nina Buchmann Juan Zhu Guanhong Chen Fernando Moyano Jukka Pumpanen Takashi Hirano Kentaro Takagi Lutz Merbold
author_sort	Zhiyuan Zhang
title	Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
title_short	Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
title_full	Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
title_fullStr	Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
title_full_unstemmed	Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions
title_sort	effect of climate warming on the annual terrestrial net ecosystem co2 exchange globally in the boreal and temperate regions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5370c72f695e403788d9af5bc5cdf655
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Effect of climate warming on the annual terrestrial net ecosystem CO2 exchange globally in the boreal and temperate regions

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