Consistent responses of litter stoichiometry to N addition across different biological organization levels in a semi-arid grassland

doi:10.1038/nplants.2016.202

	Consistent responses of litter stoichiometry to N addition across different biological organization levels in a semi-arid grassland
	Hou, Shuang-Li ; Yin, Jiang-Xia ; Yang, Jun-Jie ; Wei, Hai-Wei ; Yang, Guo-Jiao ; Hu, Yan-Yu ; Han, Xing-Guo; Lu, Xiao-Tao
	2017
发表期刊	PLANT AND SOIL
ISSN	0032-079X
卷号	421 期号:1-2 页码:191-202
摘要	Changes in litter chemistry and stoichiometry following N enrichment have important consequences on litter decomposition and plant-mediated nutrient cycling. Our knowledge about the responses of litter stoichiometry at different biological organization levels to N enrichment remains poorly understood. Moreover, whether the impacts of N enrichment on stoichiometric ratios in litter would depend on ecosystem management strategies remains unknown. We examined the effects of N addition and mowing on C:N:P stoichiometry in standing litter at plant organ, species, functional group, and community levels in a semi-arid grassland of northern China, taking advantage of a field experiment that has been running for seven years. Nitrogen addition altered biomass allocation between different organs and among different plant functional groups, with consequences on litter stoichiometry at community level. N addition had no impacts on litter C concentration, increased litter N, and N:P ratio, and decreased litter C:N ratio from plant organ to community. The impacts of N addition on litter P and C:P depended on the identity of plant species and functional group. Mowing did not affect litter nutrient characters across all organization levels. Furthermore, no interactive effects between N addition and mowing on litter nutrient characters were observed from plant organ to community levels. We conclude that N deposition will enhance litter quality even in the heavily-used grasslands with shifts in biomass allocation and species composition, which may contribute to the enhancement of plant-mediating nutrient cycling.
关键词	Nutrient cycling Species identity Ecological stoichiometry Litter quality Biomass allocation Community composition Clipping Temperate steppe
学科领域	Plant Sciences
DOI	10.1038/nplants.2016.202
收录类别	SCI
语种	英语
WOS关键词	NITROGEN DEPOSITION INCREASES ; NUTRIENT RESORPTION ; INNER-MONGOLIA ; PHOSPHORUS RESORPTION ; USE EFFICIENCY ; PLANT ; QUALITY ; DECOMPOSITION ; DEFOLIATION ; FREQUENCY
WOS记录号	WOS:000395899200004
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
EISSN	1573-5036
资助机构	National Basic Research Program of ChinaNational Basic Research Program of China [2016YFC0500601, 2015CB150802] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770503, 31470505, 31430016] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB15010403] ; Youth Innovation Promotion Association CAS [2014174] ; Key Research Program from CAS [QYZDB-SSW-DQC006, KFZD-SW-305-002]
作者邮箱	lvxiaotao@iae.ac.cn
作品OA属性	Green Submitted, Green Accepted
引用统计	被引频次：93[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/2S10CLM1/22069
专题	植被与环境变化国家重点实验室
作者单位	1.[Hou, Shuang-Li 2.Yang, Jun-Jie 3.Wei, Hai-Wei 4.Yang, Guo-Jiao 5.Hu, Yan-Yu 6.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Liaoning, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Liaoning Univ, Sch Life Sci, Shenyang 110036, Liaoning, Peoples R China 9.[Yang, Jun-Jie 10.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Hou, Shuang-Li,Yin, Jiang-Xia,Yang, Jun-Jie,et al. Consistent responses of litter stoichiometry to N addition across different biological organization levels in a semi-arid grassland[J]. PLANT AND SOIL,2017,421(1-2):191-202.
APA	Hou, Shuang-Li.,Yin, Jiang-Xia.,Yang, Jun-Jie.,Wei, Hai-Wei.,Yang, Guo-Jiao.,...&Lu, Xiao-Tao.(2017).Consistent responses of litter stoichiometry to N addition across different biological organization levels in a semi-arid grassland.PLANT AND SOIL,421(1-2),191-202.
MLA	Hou, Shuang-Li,et al."Consistent responses of litter stoichiometry to N addition across different biological organization levels in a semi-arid grassland".PLANT AND SOIL 421.1-2(2017):191-202.

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