The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis
文献类型：期刊论文
| 作者 | Yan, Weiming2; Shangguan, ZP (reprint author), Inst Soi & Water Conservat, Xinong 26, Yangling 712100, Shaanxi, Peoples R China.; Tang, Zhuangsheng2; Deng, Lei2; An, Hui1; Shangguan, Zhouping2 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2017 |
| 卷号 | 99页码:31-38 |
| 关键词 | Nitrogen Addition Productivity Community Structure Richness Grassland |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2016.11.039 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | Environmental Sciences & Ecology ; Engineering |
| URL标识 | 查看原文 |
| 出版地 | AMSTERDAM |
| 语种 | 英语 |
| WOS记录号 | WOS:000391838600004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | 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] ; 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] |
| 源URL | [http://ir.iswc.ac.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.Ningxia Univ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, United Ctr Ecol Res & Bioresource Exploitat Weste, Minist Educ, Yinchuan 750021, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Weiming,Shangguan, ZP ,Tang, Zhuangsheng,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 | Yan, Weiming,Shangguan, ZP ,Tang, Zhuangsheng,Deng, Lei,An, Hui,&Shangguan, Zhouping.(2017).The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis.ECOLOGICAL ENGINEERING,99,31-38. |
| MLA | Yan, Weiming,et al."The effect of nitrogen addition on community structure and productivity in grasslands: A meta-analysis".ECOLOGICAL ENGINEERING 99(2017):31-38. |
入库方式： OAI收割
来源：水土保持研究所
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