The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis

doi:10.1016/j.ecoleng.2016.11.039

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis
	Tang, Zhuangsheng 1; Deng, Lei 1; An, Hui 2; Yan, Weiming 1; Shangguan, Zhouping 1; Shangguan, ZP (reprint author), Inst Soi & Water Conservat, Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2017
发表期刊	ECOLOGICAL ENGINEERING
ISSN	0925-8574
通讯作者邮箱	tzsxzl@126.com ; denglei_cy@nwsuaf.edu.cn ; anhui08@163.com ; yanweiming0110@126.com ; shangguan@ms.iswc.ac.cn
卷号	99 页码:31-38
摘要	The ongoing increase in anthropogenic nitrogen (N) addition may have a substantial impact on grass-land ecosystems. Understanding the dynamics of the productivity and community structure of grassland ecosystems following N addition is important. We conducted a meta-analysis of the data from 2516 quadrats described in 56 published N-addition studies and aimed to address these questions and further describe the productivity and community structure of grassland ecosystems in response to N addition in China. Our results showed the critical threshold for N-induced productivity loss to grassland was variable. In meadow steppe, when the range of N addition occurred at rates between 7.5 and 20 gN m(-2) yr(-1), the aboveground net primary production (ANPP) increased, and below this range, the biomass of the functional groups (forb, grass, and sedge) decreased. Furthermore, above the range, both productivity and structure were negatively related to the rate of N addition. The critical threshold for the N-induced changes in the productivity of the desert steppe was 10.5 g N m(-2) yr(-1), at which production increases with no reduction in diversity. Additionally, the increase in ANPP with N addition stabilizes above approximately 12 g N m(-2) yr(-1) in desert steppe, and the decrease in species richness with N addition stabilizes above approximately 11 g N m(-2) yr(-1). Thus, at approximately 11 g N m(-2) yr(-1), further N addition causes no increase in production and a clear reduction in diversity. Our results contribute to a better understanding of the consequences of future climate change in grassland ecosystems. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Nitrogen Addition Productivity Community Structure Richness Grassland
学科领域	Environmental Sciences & Ecology ; Engineering
DOI	10.1016/j.ecoleng.2016.11.039
URL	查看原文
收录类别	SCI
出版地	AMSTERDAM
语种	英语
WOS记录号	WOS:000391838600004
出版者	ELSEVIER SCIENCE BV
项目资助者	National Natural Science Foundation of China [41390463, 31260125, 41501094]; National Sci-Tech Support Program of China [2015BAC01B03] ; National Natural Science Foundation of China [41390463, 31260125, 41501094]; National Sci-Tech Support Program of China [2015BAC01B03]
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8045
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Shangguan, ZP (reprint author), Inst Soi & Water Conservat, Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Ningxia Univ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, United Ctr Ecol Res & Bioresource Exploitat Weste, Minist Educ, Yinchuan 750021, Peoples R China
推荐引用方式 GB/T 7714	Tang, Zhuangsheng,Deng, Lei,An, Hui,et al. The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis[J]. ECOLOGICAL ENGINEERING,2017,99:31-38.
APA	Tang, Zhuangsheng,Deng, Lei,An, Hui,Yan, Weiming,Shangguan, Zhouping,&Shangguan, ZP .(2017).The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis.ECOLOGICAL ENGINEERING,99,31-38.
MLA	Tang, Zhuangsheng,et al."The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis".ECOLOGICAL ENGINEERING 99(2017):31-38.