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

文献类型：期刊论文

作者Hou, Shuang-Li; Yin, Jiang-Xia; Yang, Jun-Jie; Wei, Hai-Wei; Yang, Guo-Jiao; Hu, Yan-Yu; Han, Xing-Guo; Lu, Xiao-Tao
刊名PLANT AND SOIL
出版日期2017
卷号421期号:1-2页码:191-202
关键词Nutrient cycling Species identity Ecological stoichiometry Litter quality Biomass allocation Community composition Clipping Temperate steppe
ISSN号0032-079X
DOI10.1038/nplants.2016.202
文献子类Article
英文摘要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.
学科主题Plant Sciences
出版地DORDRECHT
电子版国际标准刊号1573-5036
WOS关键词NITROGEN DEPOSITION INCREASES ; NUTRIENT RESORPTION ; INNER-MONGOLIA ; PHOSPHORUS RESORPTION ; USE EFFICIENCY ; PLANT ; QUALITY ; DECOMPOSITION ; DEFOLIATION ; FREQUENCY
语种英语
WOS记录号WOS:000395899200004
出版者SPRINGER
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]
源URL[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.Hu, Yan-Yu
2.Wei, Hai-Wei
3.Yang, Jun-Jie
4.[Hou, Shuang-Li
5.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Erguna Forest Steppe Ecotone Res Stn, Shenyang 110016, Liaoning, Peoples R China
6.Liaoning Univ, Sch Life Sci, Shenyang 110036, Liaoning, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
9.[Yang, Jun-Jie
10.Yang, Guo-Jiao
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.

入库方式： OAI收割

来源：植物研究所

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