Negative legacy effects of rainfall and nitrogen amendment on leaf lifespan of steppe species

doi:10.1002/ecm.1262

	Negative legacy effects of rainfall and nitrogen amendment on leaf lifespan of steppe species
	Yu, Hong-Wei ; He, Wei-Ming
	2017
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	10 期号:5 页码:831-838
摘要	Aims Studying legacy effects (i.e. the indirect effect that persists for a period after casual factors cease) can provide novel insights into the role of ecological drivers. Leaf lifespan is among the key traits with multi-level functions. It is clear about the direct effects of water and nitrogen (N) amendment on leaf lifespan, but it remains unclear about their legacy effects on leaf lifespan and the associated mechanisms. Methods We performed a five-year field experiment with supplemental water and N, and quantified the legacy effects of field water and N addition on the leaf lifespan, length and growth rate of four dominant species, Agropyron cristatum, Cleistogenes squarrosa, Leymus chinensis and Stipa grandis in a temperate steppe. Important Findings Across all the species, the legacies of water and N addition increased their leaf length and growth rate directly but decreased their leaf lifespan through direct and indirect pathways. Leaf lifespan was positively linked with leaf length but negatively associated to leaf growth rate. The legacy effect of water addition on leaf lifespan was greater than that of N addition. Field N addition induced soil acidification and eutrophication, as well as altered soil microbes, but only eutrophication had negative legacy effects on leaf lifespan. These findings provide substantial evidence that rainfall and N amendment have negative legacy effects on leaf lifespan, and also highlight that multiple mechanisms or pathways determine legacy effects. Additionally, our results suggest that field water and N manipulations may influence the other leaf traits and functions.
关键词	leaf traits nitrogen deposition rainfall increase soil legacy effects steppe dominants structural equation models
学科领域	Environmental Sciences & Ecology
DOI	10.1002/ecm.1262
收录类别	SCI
语种	英语
WOS关键词	MICROBIAL COMMUNITIES ; CONSTRUCTION COST ; PLANT DIVERSITY ; WATER ; LONGEVITY ; DEPOSITION ; RESPONSES ; ACIDIFICATION ; AVAILABILITY ; CONSEQUENCES
WOS记录号	WOS:000406722400006
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1752-993X
资助机构	Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2015BAC02B05] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570538]
作者邮箱	weiminghe@ibcas.ac.cn
引用统计	被引频次：105[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/2S10CLM1/22239
专题	植被与环境变化国家重点实验室
作者单位	1.[Yu, Hong-Wei 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Fragrant Hills, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yu, Hong-Wei,He, Wei-Ming. Negative legacy effects of rainfall and nitrogen amendment on leaf lifespan of steppe species[J]. JOURNAL OF PLANT ECOLOGY,2017,10(5):831-838.
APA	Yu, Hong-Wei,&He, Wei-Ming.(2017).Negative legacy effects of rainfall and nitrogen amendment on leaf lifespan of steppe species.JOURNAL OF PLANT ECOLOGY,10(5),831-838.
MLA	Yu, Hong-Wei,et al."Negative legacy effects of rainfall and nitrogen amendment on leaf lifespan of steppe species".JOURNAL OF PLANT ECOLOGY 10.5(2017):831-838.

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