Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China

Abstract Despite the high frequency of wildfire disturbances in boreal forests in China, the effects of wildfires on soil respiration are not yet well understood. We examined the effects of fire severity on the soil respiration rate (Rs) and its component change in a Dahurian Larch (Larix gmelinii)...

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Autores principales:	Tongxin Hu, Long Sun, Haiqing Hu, David R. Weise, Futao Guo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d7316f1752d642fcbef87b5136a8d3c6
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spelling	oai:doaj.org-article:d7316f1752d642fcbef87b5136a8d3c62021-12-02T11:53:03ZSoil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China10.1038/s41598-017-03325-42045-2322https://doaj.org/article/d7316f1752d642fcbef87b5136a8d3c62017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03325-4https://doaj.org/toc/2045-2322Abstract Despite the high frequency of wildfire disturbances in boreal forests in China, the effects of wildfires on soil respiration are not yet well understood. We examined the effects of fire severity on the soil respiration rate (Rs) and its component change in a Dahurian Larch (Larix gmelinii) in Northeast China. The results showed that Rs decreased with fire burning severity. Compared with the control plots, Rs in the low burning severity plots decreased by 19%, while it decreased by 28% in the high burning severity plots. The Rs decrease was mainly due to a decreased autotrophic respiration rate (Ra). The temperature sensitivity (Q 10) of Rs increased after the low severity fire disturbances, but it decreased after the high severity fire disturbance. The Rs were triggered by the soil temperature, which may explain most of the Rs variability in this area. Our study, for the first time, provides the data-based foundation to demonstrate the importance of assessing CO2 fluxes considering both fire severity and environmental factors post-fire in boreal forests of China.Tongxin HuLong SunHaiqing HuDavid R. WeiseFutao GuoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tongxin Hu Long Sun Haiqing Hu David R. Weise Futao Guo Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
description	Abstract Despite the high frequency of wildfire disturbances in boreal forests in China, the effects of wildfires on soil respiration are not yet well understood. We examined the effects of fire severity on the soil respiration rate (Rs) and its component change in a Dahurian Larch (Larix gmelinii) in Northeast China. The results showed that Rs decreased with fire burning severity. Compared with the control plots, Rs in the low burning severity plots decreased by 19%, while it decreased by 28% in the high burning severity plots. The Rs decrease was mainly due to a decreased autotrophic respiration rate (Ra). The temperature sensitivity (Q 10) of Rs increased after the low severity fire disturbances, but it decreased after the high severity fire disturbance. The Rs were triggered by the soil temperature, which may explain most of the Rs variability in this area. Our study, for the first time, provides the data-based foundation to demonstrate the importance of assessing CO2 fluxes considering both fire severity and environmental factors post-fire in boreal forests of China.
format	article
author	Tongxin Hu Long Sun Haiqing Hu David R. Weise Futao Guo
author_facet	Tongxin Hu Long Sun Haiqing Hu David R. Weise Futao Guo
author_sort	Tongxin Hu
title	Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
title_short	Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
title_full	Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
title_fullStr	Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
title_full_unstemmed	Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China
title_sort	soil respiration of the dahurian larch (larix gmelinii) forest and the response to fire disturbance in da xing’an mountains, china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d7316f1752d642fcbef87b5136a8d3c6
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Soil Respiration of the Dahurian Larch (Larix gmelinii) Forest and the Response to Fire Disturbance in Da Xing’an Mountains, China

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