Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China

Abstract Atmospheric nitrogen (N) deposition could affect various ecological processes in forest ecosystems, including plant litter decomposition and nutrient cycling. However, the mechanism of underlying litter decomposition and nutrient cycling of Cinnamomum migao under N deposition remains unclea...

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Autores principales:	Xiao-Long Huang, Jing-Zhong Chen, Deng Wang, Ming-Ming Deng, Meng-Yao Wu, Bing-Li Tong, Ji-Ming Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fc89e6e1e6d647f5aa541fa71a211103
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spelling	oai:doaj.org-article:fc89e6e1e6d647f5aa541fa71a2111032021-12-02T13:48:41ZSimulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China10.1038/s41598-021-81458-32045-2322https://doaj.org/article/fc89e6e1e6d647f5aa541fa71a2111032021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81458-3https://doaj.org/toc/2045-2322Abstract Atmospheric nitrogen (N) deposition could affect various ecological processes in forest ecosystems, including plant litter decomposition and nutrient cycling. However, the mechanism of underlying litter decomposition and nutrient cycling of Cinnamomum migao under N deposition remains unclear. Therefore, we conducted a simulated N deposition experiment including four onsite treatments to assess the effects of N input on C. migao leaf litter decomposition, nutrient release, and soil enzyme activity. The results showed that simulated N deposition significantly increased the amount of total residual mass and lignin and cellulose, decreased the decomposition rate, and suppressed net nutrient release. N input increased C, N, and P ratios as decomposition progressed, and the proportion of mass remaining was positively correlated with the proportions of lignin and cellulose remaining at the later stage of decomposition. The differences in soil enzyme activity were primarily due to enzyme type and sampling time. We conclude that simulated N deposition significantly suppressed the leaf litter decomposition of C. migao by mainly altering the chemical properties and suppressing the decomposition of the organic matter in leaf litter. Lignin might have played an important role in the loss of leaf litter biomass at the later stage of decomposition.Xiao-Long HuangJing-Zhong ChenDeng WangMing-Ming DengMeng-Yao WuBing-Li TongJi-Ming LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiao-Long Huang Jing-Zhong Chen Deng Wang Ming-Ming Deng Meng-Yao Wu Bing-Li Tong Ji-Ming Liu Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
description	Abstract Atmospheric nitrogen (N) deposition could affect various ecological processes in forest ecosystems, including plant litter decomposition and nutrient cycling. However, the mechanism of underlying litter decomposition and nutrient cycling of Cinnamomum migao under N deposition remains unclear. Therefore, we conducted a simulated N deposition experiment including four onsite treatments to assess the effects of N input on C. migao leaf litter decomposition, nutrient release, and soil enzyme activity. The results showed that simulated N deposition significantly increased the amount of total residual mass and lignin and cellulose, decreased the decomposition rate, and suppressed net nutrient release. N input increased C, N, and P ratios as decomposition progressed, and the proportion of mass remaining was positively correlated with the proportions of lignin and cellulose remaining at the later stage of decomposition. The differences in soil enzyme activity were primarily due to enzyme type and sampling time. We conclude that simulated N deposition significantly suppressed the leaf litter decomposition of C. migao by mainly altering the chemical properties and suppressing the decomposition of the organic matter in leaf litter. Lignin might have played an important role in the loss of leaf litter biomass at the later stage of decomposition.
format	article
author	Xiao-Long Huang Jing-Zhong Chen Deng Wang Ming-Ming Deng Meng-Yao Wu Bing-Li Tong Ji-Ming Liu
author_facet	Xiao-Long Huang Jing-Zhong Chen Deng Wang Ming-Ming Deng Meng-Yao Wu Bing-Li Tong Ji-Ming Liu
author_sort	Xiao-Long Huang
title	Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
title_short	Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
title_full	Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
title_fullStr	Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
title_full_unstemmed	Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China
title_sort	simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of cinnamomum migao h. w. li in southwest china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fc89e6e1e6d647f5aa541fa71a211103
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Simulated atmospheric nitrogen deposition inhibited the leaf litter decomposition of Cinnamomum migao H. W. Li in Southwest China

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