Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.

Global nitrogen (N) deposition and climate change have been identified as two of the most important causes of current plant diversity loss. However, temporal patterns of species turnover underlying diversity changes in response to changing precipitation regimes and atmospheric N deposition have rece...

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Autores principales:	Zhuwen Xu, Shiqiang Wan, Haiyan Ren, Xingguo Han, Mai-He Li, Weixin Cheng, Yong Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/045bf6f1da2f4e4682feb0883e62652f
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id	oai:doaj.org-article:045bf6f1da2f4e4682feb0883e62652f
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spelling	oai:doaj.org-article:045bf6f1da2f4e4682feb0883e62652f2021-11-18T07:13:54ZEffects of water and nitrogen addition on species turnover in temperate grasslands in northern China.1932-620310.1371/journal.pone.0039762https://doaj.org/article/045bf6f1da2f4e4682feb0883e62652f2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22768119/?tool=EBIhttps://doaj.org/toc/1932-6203Global nitrogen (N) deposition and climate change have been identified as two of the most important causes of current plant diversity loss. However, temporal patterns of species turnover underlying diversity changes in response to changing precipitation regimes and atmospheric N deposition have received inadequate attention. We carried out a manipulation experiment in a steppe and an old-field in North China from 2005 to 2009, to test the hypothesis that water addition enhances plant species richness through increase in the rate of species gain and decrease in the rate of species loss, while N addition has opposite effects on species changes. Our results showed that water addition increased the rate of species gain in both the steppe and the old field but decreased the rates of species loss and turnover in the old field. In contrast, N addition increased the rates of species loss and turnover in the steppe but decreased the rate of species gain in the old field. The rate of species change was greater in the old field than in the steppe. Water interacted with N to affect species richness and species turnover, indicating that the impacts of N on semi-arid grasslands were largely mediated by water availability. The temporal stability of communities was negatively correlated with rates of species loss and turnover, suggesting that water addition might enhance, but N addition would reduce the compositional stability of grasslands. Experimental results support our initial hypothesis and demonstrate that water and N availabilities differed in the effects on rate of species change in the temperate grasslands, and these effects also depend on grassland types and/or land-use history. Species gain and loss together contribute to the dynamic change of species richness in semi-arid grasslands under future climate change.Zhuwen XuShiqiang WanHaiyan RenXingguo HanMai-He LiWeixin ChengYong JiangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 6, p e39762 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhuwen Xu Shiqiang Wan Haiyan Ren Xingguo Han Mai-He Li Weixin Cheng Yong Jiang Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
description	Global nitrogen (N) deposition and climate change have been identified as two of the most important causes of current plant diversity loss. However, temporal patterns of species turnover underlying diversity changes in response to changing precipitation regimes and atmospheric N deposition have received inadequate attention. We carried out a manipulation experiment in a steppe and an old-field in North China from 2005 to 2009, to test the hypothesis that water addition enhances plant species richness through increase in the rate of species gain and decrease in the rate of species loss, while N addition has opposite effects on species changes. Our results showed that water addition increased the rate of species gain in both the steppe and the old field but decreased the rates of species loss and turnover in the old field. In contrast, N addition increased the rates of species loss and turnover in the steppe but decreased the rate of species gain in the old field. The rate of species change was greater in the old field than in the steppe. Water interacted with N to affect species richness and species turnover, indicating that the impacts of N on semi-arid grasslands were largely mediated by water availability. The temporal stability of communities was negatively correlated with rates of species loss and turnover, suggesting that water addition might enhance, but N addition would reduce the compositional stability of grasslands. Experimental results support our initial hypothesis and demonstrate that water and N availabilities differed in the effects on rate of species change in the temperate grasslands, and these effects also depend on grassland types and/or land-use history. Species gain and loss together contribute to the dynamic change of species richness in semi-arid grasslands under future climate change.
format	article
author	Zhuwen Xu Shiqiang Wan Haiyan Ren Xingguo Han Mai-He Li Weixin Cheng Yong Jiang
author_facet	Zhuwen Xu Shiqiang Wan Haiyan Ren Xingguo Han Mai-He Li Weixin Cheng Yong Jiang
author_sort	Zhuwen Xu
title	Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
title_short	Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
title_full	Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
title_fullStr	Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
title_full_unstemmed	Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.
title_sort	effects of water and nitrogen addition on species turnover in temperate grasslands in northern china.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/045bf6f1da2f4e4682feb0883e62652f
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_version_	1718423705981288448

Effects of water and nitrogen addition on species turnover in temperate grasslands in northern China.

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