Mowing mitigates the negative impacts of N addition on plant species diversity

doi:10.1007/s00442-019-04353-9

	Mowing mitigates the negative impacts of N addition on plant species diversity
	Yang, Guo-Jiao ; Lu, Xiao-Tao ; Stevens, Carly J.; Zhang, Guang-Ming ; Wang, Hong-Yi ; Wang, Zheng-Wen ; Zhang, Zi-Jia ; Liu, Zhuo-Yi ; Han, Xing-Guo
	2019
发表期刊	OECOLOGIA
ISSN	0029-8549
卷号	189 期号:3 页码:769-779
摘要	Increasing availability of reactive nitrogen (N) threatens plant diversity in diverse ecosystems. While there is mounting evidence for the negative impacts of N deposition on one component of diversity, species richness, we know little about its effects on another one, species evenness. It is suspected that ecosystem management practice that removes nitrogen from the ecosystem, such as hay-harvesting by mowing in grasslands, would mitigate the negative impacts of N deposition on plant diversity. However, empirical evidence is scarce. Here, we reported the main and interactive effects of N deposition and mowing on plant diversity in a temperate meadow steppe with 4-year data from a field experiment within which multi-level N addition rates and multiple N compounds are considered. Across all the types of N compounds, species richness and evenness significantly decreased with the increases of N addition rate, which was mainly caused by the growth of a tall rhizomatous grass, Leymus chinensis. Such negative impacts of N addition were accumulating with time. Mowing significantly reduced the dominance of L. chinensis, and mitigated the negative impacts of N deposition on species evenness. We present robust evidence that N deposition threatened biodiversity by reducing both species richness and evenness, a process which could be alleviated by mowing. Our results highlight the changes of species evenness in driving the negative impacts of N deposition on plant diversity and the role of mowing in mediating such negative impacts of N deposition.
关键词	Biodiversity loss Nitrogen compounds Hay-making Community evenness Semi-arid grassland
学科领域	Ecology
DOI	10.1007/s00442-019-04353-9
收录类别	SCI
语种	英语
WOS关键词	NITROGEN DEPOSITION ; ECOSYSTEM STABILITY ; BIODIVERSITY LOSS ; EVENNESS ; RICHNESS ; COMMUNITY ; RESPONSES ; GRASSLANDS ; ENRICHMENT ; MANAGEMENT
WOS研究方向	Environmental Sciences & Ecology
WOS记录号	WOS:000461360700018
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1432-1939
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31430016, 31822006, 31770503] ; National Basic Research Program of ChinaNational Basic Research Program of China [2016YFC0500601, 2015CB150802] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB15010403] ; Youth Innovation Promotion Association CAS [2014174] ; CASChinese Academy of Sciences [QYZDB-SSW-DQC006]
作者邮箱	lvxiaotao@iae.ac.cn
作品OA属性	Green Accepted
引用统计	被引频次：59[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19844
专题	植被与环境变化国家重点实验室
作者单位	1.[Yang, Guo-Jiao 2.Lu, Xiao-Tao 3.Wang, Hong-Yi 4.Wang, Zheng-Wen 5.Zhang, Zi-Jia 6.Liu, Zhuo-Yi 7.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Liaoning, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.[Stevens, Carly J.] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 10.[Zhang, Guang-Ming 11.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat Environm Change, Beijing 100093, Peoples R China 12.Heilongjiang Bayi Agr Univ, Daqing 163319, Peoples R China
推荐引用方式 GB/T 7714	Yang, Guo-Jiao,Lu, Xiao-Tao,Stevens, Carly J.,et al. Mowing mitigates the negative impacts of N addition on plant species diversity[J]. OECOLOGIA,2019,189(3):769-779.
APA	Yang, Guo-Jiao.,Lu, Xiao-Tao.,Stevens, Carly J..,Zhang, Guang-Ming.,Wang, Hong-Yi.,...&Han, Xing-Guo.(2019).Mowing mitigates the negative impacts of N addition on plant species diversity.OECOLOGIA,189(3),769-779.
MLA	Yang, Guo-Jiao,et al."Mowing mitigates the negative impacts of N addition on plant species diversity".OECOLOGIA 189.3(2019):769-779.

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