Exacerbated nitrogen limitation ends transient stimulation of grassland productivity by increased precipitation

doi:10.5735/085.054.0309

	Exacerbated nitrogen limitation ends transient stimulation of grassland productivity by increased precipitation
	Ren, Haiyan 1; Xu, Zhuwen ; Isbell, Forest 2; Huang, Jianhui3 ; Han, Xingguo3 ; Wan, Shiqiang 4; Chen, Shiping3 ; Wang, Ruzhen ; Zeng, De-Hui ; Jiang, Yong ; Fang, Yunting
	2017
发表期刊	ECOLOGICAL MONOGRAPHS
ISSN	0012-9615
卷号	87 期号:3 页码:457-469
摘要	Given that plant growth is often water-limited in grasslands, it has been proposed that projected increases in precipitation could increase plant productivity and carbon sequestration. However, the existing evidence for this hypothesis comes primarily from observational studies along natural precipitation gradients or from short-term manipulative experiments. It remains unclear whether long-term increased precipitation persistently stimulates grassland productivity. In the world's largest remaining temperate grassland, we found that experimentally increased precipitation enhanced net primary production, soil-available nitrogen and foliar nitrogen concentrations during the first six years, but it ceased to do so in the following four years, unless nitrogen was simultaneously added with water. The N-15 enrichment of plant and soil nitrogen pools in later years indicates increased nitrogen losses, which exacerbated nitrogen limitation and ended the stimulation of productivity by increased precipitation. Changes in species abundance might have contributed little to the changes in water treatment effects. Our study demonstrates that the long-term response of grassland ecosystems to increased precipitation will be mediated by nitrogen availability. Our results also point to a shift from co-limitation by water and nitrogen early to perhaps limitation by nitrogen only later in this temperate grassland, highlighting significant variations in the type of resource limitation induced by climate change.
关键词	increased precipitation nitrogen deposition nitrogen losses nitrogen stable isotopes plant productivity plant species abundance
学科领域	Plant Sciences
DOI	10.5735/085.054.0309
收录类别	SCI
语种	英语
WOS关键词	NET PRIMARY PRODUCTIVITY ; CARBON SEQUESTRATION ; TEMPERATE GRASSLAND ; TERRESTRIAL ECOSYSTEMS ; WATER ADDITION ; RESPONSES ; CLIMATE ; PULSES ; DYNAMICS ; METAANALYSIS
WOS记录号	WOS:000402048600009
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1557-7015
资助机构	National Key Research and Development Program of China [2016YFA0600800, 2016YFC0500707] ; Chinese Academy of SciencesChinese Academy of Sciences [XDB15020200] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31300387, 31370009, 31422009, 41073056] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2012M510847]
作者邮箱	fangyt@iae.ac.cn
引用统计	被引频次：4[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/2S10CLM1/22169
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110164, Liaoning, Peoples R China 2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Key Lab Grassland Resources, Minist Educ, Hohhot 010018, Peoples R China 3.Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN 55108 USA 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Henan Univ, Coll Life Sci, Key Lab Plant Stress Biol, Kaifeng 475004, Henan, Peoples R China
推荐引用方式 GB/T 7714	Ren, Haiyan,Xu, Zhuwen,Isbell, Forest,et al. Exacerbated nitrogen limitation ends transient stimulation of grassland productivity by increased precipitation[J]. ECOLOGICAL MONOGRAPHS,2017,87(3):457-469.
APA	Ren, Haiyan.,Xu, Zhuwen.,Isbell, Forest.,Huang, Jianhui.,Han, Xingguo.,...&Fang, Yunting.(2017).Exacerbated nitrogen limitation ends transient stimulation of grassland productivity by increased precipitation.ECOLOGICAL MONOGRAPHS,87(3),457-469.
MLA	Ren, Haiyan,et al."Exacerbated nitrogen limitation ends transient stimulation of grassland productivity by increased precipitation".ECOLOGICAL MONOGRAPHS 87.3(2017):457-469.

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