Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem

Abstract In order to investigate the effects of N deposition on soil biochemistry in secondary forests, one N addition experiment was conducted in a secondary evergreen broad-leaved forest in the western edge of Sichuan Basin, with the highest level of background N deposition (about 95 kg N ha−1 yr−...

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Autores principales:	Yong Peng, Guangsheng Chen, Guantao Chen, Shun Li, Tianchi Peng, Xirong Qiu, Jie Luo, Shanshan Yang, Tingxing Hu, Hongling Hu, Zhenfeng Xu, Li Liu, Yi Tang, Lihua Tu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/208e151506284f3582a958b9a6718d58
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spelling	oai:doaj.org-article:208e151506284f3582a958b9a6718d582021-12-02T11:51:13ZSoil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem10.1038/s41598-017-03044-w2045-2322https://doaj.org/article/208e151506284f3582a958b9a6718d582017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03044-whttps://doaj.org/toc/2045-2322Abstract In order to investigate the effects of N deposition on soil biochemistry in secondary forests, one N addition experiment was conducted in a secondary evergreen broad-leaved forest in the western edge of Sichuan Basin, with the highest level of background N deposition (about 95 kg N ha−1 yr−1) in China. Three N treatment levels (+0, +50, +150 kg N ha−1 yr−1) were monthly added to soil surface in this forest beginning in April 2013. Soil biochemistry and root biomass of the 0–10 cm soil horizon were measured from May 2014 to April 2015. Soil respiration was measured for two years (September 2013 to August 2015). It was showed that N additions were correlated to significantly lower soil pH, microbial biomass C (MBC) concentration, MBC/microbial biomass N (MBN) ratio, root biomass, and soil respiration rate, and significantly higher concentrations of ammonium (NH4 +) and nitrate (NO3 −). These results indicate that N additions had a significant effect on the size of soil microbial community. In addition, soil C storage may potentially increase due to the dropped soil C release under N addition.Yong PengGuangsheng ChenGuantao ChenShun LiTianchi PengXirong QiuJie LuoShanshan YangTingxing HuHongling HuZhenfeng XuLi LiuYi TangLihua TuNature 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 Yong Peng Guangsheng Chen Guantao Chen Shun Li Tianchi Peng Xirong Qiu Jie Luo Shanshan Yang Tingxing Hu Hongling Hu Zhenfeng Xu Li Liu Yi Tang Lihua Tu Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
description	Abstract In order to investigate the effects of N deposition on soil biochemistry in secondary forests, one N addition experiment was conducted in a secondary evergreen broad-leaved forest in the western edge of Sichuan Basin, with the highest level of background N deposition (about 95 kg N ha−1 yr−1) in China. Three N treatment levels (+0, +50, +150 kg N ha−1 yr−1) were monthly added to soil surface in this forest beginning in April 2013. Soil biochemistry and root biomass of the 0–10 cm soil horizon were measured from May 2014 to April 2015. Soil respiration was measured for two years (September 2013 to August 2015). It was showed that N additions were correlated to significantly lower soil pH, microbial biomass C (MBC) concentration, MBC/microbial biomass N (MBN) ratio, root biomass, and soil respiration rate, and significantly higher concentrations of ammonium (NH4 +) and nitrate (NO3 −). These results indicate that N additions had a significant effect on the size of soil microbial community. In addition, soil C storage may potentially increase due to the dropped soil C release under N addition.
format	article
author	Yong Peng Guangsheng Chen Guantao Chen Shun Li Tianchi Peng Xirong Qiu Jie Luo Shanshan Yang Tingxing Hu Hongling Hu Zhenfeng Xu Li Liu Yi Tang Lihua Tu
author_facet	Yong Peng Guangsheng Chen Guantao Chen Shun Li Tianchi Peng Xirong Qiu Jie Luo Shanshan Yang Tingxing Hu Hongling Hu Zhenfeng Xu Li Liu Yi Tang Lihua Tu
author_sort	Yong Peng
title	Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
title_short	Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
title_full	Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
title_fullStr	Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
title_full_unstemmed	Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
title_sort	soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/208e151506284f3582a958b9a6718d58
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Soil biochemical responses to nitrogen addition in a secondary evergreen broad-leaved forest ecosystem

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