Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest

Phosphorus (P) deposition plays a vital role in determining forest productivity and influencing microbial decomposer communities and activities. Wood plays a key role in forest carbon (C) dynamics because it contains a sizeable proportion of total forest C. However, the effects of increasing P depos...

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Autores principales:	Chunsheng Wu, Chunjie Shu, Zhijian Zhang, Yi Zhang, Yuanqiu Liu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Phosphorus deposition Decomposition Carbon cycle Q10 Environmental change Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/c9c60c2667cb4fd89e1b9cf14cbc592e
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spelling	oai:doaj.org-article:c9c60c2667cb4fd89e1b9cf14cbc592e2021-12-01T04:53:58ZPhosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest1470-160X10.1016/j.ecolind.2021.107819https://doaj.org/article/c9c60c2667cb4fd89e1b9cf14cbc592e2021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004842https://doaj.org/toc/1470-160XPhosphorus (P) deposition plays a vital role in determining forest productivity and influencing microbial decomposer communities and activities. Wood plays a key role in forest carbon (C) dynamics because it contains a sizeable proportion of total forest C. However, the effects of increasing P deposition on wood respiration (Rw) in subtropical evergreen forests are still unclear. In this study, we conducted a four-year field factorial fertilization experiment in a subtropical Chinese evergreen forest to investigate the influences of simulated changes in P deposition at three levels (e.g., 0 (control), 30 (P1), and 60 (P2) kg P/ha/yr) on the Rw of Lithocarpus glaber (Thunb.) Nakai (LI). We found that Rw showed significantly higher sensitivity (Q10) to wood temperature than to air temperature. The Rw rate was significantly and positively correlated with the wood microbial decomposer community (including fungi and bacteria), wood temperature and available P. Compared to the control treatment, the P1 and P2 treatments increased the mean annual Rw by approximately 1.82 and 0.98 times, respectively. P deposition also accelerated the Q10 of Rw. Meanwhile, on average, wood emitted 20.29 kg CO2/ha/yr per 1 kg P/ha/yr added, which declined when P deposition increased above a P saturation threshold of 30 kg P/ha/yr. Our results provide insights into the influences of P deposition on carbon dioxide emissions from wood and also on decomposition rates in subtropical evergreen forests under the rising temperatures expected in the coming decades.Chunsheng WuChunjie ShuZhijian ZhangYi ZhangYuanqiu LiuElsevierarticlePhosphorus depositionDecompositionCarbon cycleQ10Environmental changeEcologyQH540-549.5ENEcological Indicators, Vol 128, Iss , Pp 107819- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Phosphorus deposition Decomposition Carbon cycle Q10 Environmental change Ecology QH540-549.5
spellingShingle	Phosphorus deposition Decomposition Carbon cycle Q10 Environmental change Ecology QH540-549.5 Chunsheng Wu Chunjie Shu Zhijian Zhang Yi Zhang Yuanqiu Liu Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
description	Phosphorus (P) deposition plays a vital role in determining forest productivity and influencing microbial decomposer communities and activities. Wood plays a key role in forest carbon (C) dynamics because it contains a sizeable proportion of total forest C. However, the effects of increasing P deposition on wood respiration (Rw) in subtropical evergreen forests are still unclear. In this study, we conducted a four-year field factorial fertilization experiment in a subtropical Chinese evergreen forest to investigate the influences of simulated changes in P deposition at three levels (e.g., 0 (control), 30 (P1), and 60 (P2) kg P/ha/yr) on the Rw of Lithocarpus glaber (Thunb.) Nakai (LI). We found that Rw showed significantly higher sensitivity (Q10) to wood temperature than to air temperature. The Rw rate was significantly and positively correlated with the wood microbial decomposer community (including fungi and bacteria), wood temperature and available P. Compared to the control treatment, the P1 and P2 treatments increased the mean annual Rw by approximately 1.82 and 0.98 times, respectively. P deposition also accelerated the Q10 of Rw. Meanwhile, on average, wood emitted 20.29 kg CO2/ha/yr per 1 kg P/ha/yr added, which declined when P deposition increased above a P saturation threshold of 30 kg P/ha/yr. Our results provide insights into the influences of P deposition on carbon dioxide emissions from wood and also on decomposition rates in subtropical evergreen forests under the rising temperatures expected in the coming decades.
format	article
author	Chunsheng Wu Chunjie Shu Zhijian Zhang Yi Zhang Yuanqiu Liu
author_facet	Chunsheng Wu Chunjie Shu Zhijian Zhang Yi Zhang Yuanqiu Liu
author_sort	Chunsheng Wu
title	Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
title_short	Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
title_full	Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
title_fullStr	Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
title_full_unstemmed	Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
title_sort	phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c9c60c2667cb4fd89e1b9cf14cbc592e
work_keys_str_mv	AT chunshengwu phosphorusdepositionaccelerateswooddecompositionandtemperaturesensitivityinasubtropicalforest AT chunjieshu phosphorusdepositionaccelerateswooddecompositionandtemperaturesensitivityinasubtropicalforest AT zhijianzhang phosphorusdepositionaccelerateswooddecompositionandtemperaturesensitivityinasubtropicalforest AT yizhang phosphorusdepositionaccelerateswooddecompositionandtemperaturesensitivityinasubtropicalforest AT yuanqiuliu phosphorusdepositionaccelerateswooddecompositionandtemperaturesensitivityinasubtropicalforest
_version_	1718405689591726080

Phosphorus deposition accelerates wood decomposition and temperature sensitivity in a subtropical forest

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