Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe
文献类型：期刊论文
| 作者 | Hao, Tianxiang1,2; Song, Ling3 ; Goulding, Keith4; Zhang, Fusuo1,2; Liu, Xuejun1,2
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| 刊名 | ECOLOGICAL APPLICATIONS
 |
| 出版日期 | 2018 |
| 卷号 | 28期号:1页码:237-248 |
| 关键词 | aboveground biomass ecosystem restoration grassland nitrogen deposition species composition species richness |
| ISSN号 | 1051-0761 |
| DOI | 10.1002/eap.1647/full |
| 英文摘要 | Atmospheric nitrogen (N) deposition has been shown to decrease biodiversity and change nutrient cycles in terrestrial ecosystems. However, our understanding of ecological responses to chronic N addition and ecological recovery of grassland from N enrichment is limited. Here we present evidence from an 11-year grassland experiment with a range of N addition rates (0, 30, 60, 120, 240, and 480 kg N.ha(-1).yr(-1)) in Inner Mongolia, China. Chronic N addition led to a reduction in species richness, Shannon diversity index, and soil pH and an increase in aboveground biomass, foliar N, and soil mineral N. High N addition rates (240 and 480 kg N.ha(-1).yr(-1)) showed significant effects in the first and second years, which stabilized over time. Nitrogen addition at low rates (30 and 60 kg N.ha(-1).yr(-1)) took longer (e.g., three years or more) to achieve significant effects. The negative impacts of high N addition (480 kg N.ha(-1).yr(-1)) were reduced and species richness, Shannon diversity index, and soil pH showed a limited but rapid recovery with the cessation of N addition. Our findings suggest serious and cumulative impacts of N addition on plant and soil communities but the potential for partial system recovery over time if N inputs decline or cease. |
| 语种 | 英语 |
| WOS记录号 | WOS:000429004700018 |
| 出版者 | WILEY |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20709]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Liu, Xuejun |
| 作者单位 | 1.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact MOE, Beijing 100193, Peoples R China 2.China Agr Univ, Beijing Key Lab Farmland Pollut Prevent & Remedia, Beijing 100193, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 4.Rothamsted Res, Sustainable Agr Sci Dept, Harpenden AL5 2JQ, Herts, England |
| 推荐引用方式 GB/T 7714 | Hao, Tianxiang,Song, Ling,Goulding, Keith,et al. Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe[J]. ECOLOGICAL APPLICATIONS,2018,28(1):237-248. |
| APA | Hao, Tianxiang,Song, Ling,Goulding, Keith,Zhang, Fusuo,&Liu, Xuejun.(2018).Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe.ECOLOGICAL APPLICATIONS,28(1),237-248. |
| MLA | Hao, Tianxiang,et al."Cumulative and partially recoverable impacts of nitrogen addition on a temperate steppe".ECOLOGICAL APPLICATIONS 28.1(2018):237-248. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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