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, Zhuangsheng1; Deng, Lei1; An, Hui2; Yan, Weiming1; Shangguan, Zhouping1; Shangguan, ZP (reprint author), Inst Soi & Water Conservat, Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
description.correspondentemailtzsxzl@126.com ; denglei_cy@nwsuaf.edu.cn ; anhui08@163.com ; yanweiming0110@126.com ; shangguan@ms.iswc.ac.cn
Volume99Pages:31-38
AbstractThe 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.
KeywordNitrogen Addition Productivity Community Structure Richness Grassland
Subject AreaEnvironmental Sciences & Ecology ; Engineering
DOI10.1016/j.ecoleng.2016.11.039
URL查看原文
Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000391838600004
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational 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]
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8045
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorShangguan, ZP (reprint author), Inst Soi & Water Conservat, Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.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
Recommended Citation
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.
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