Opposite responses of global warming potential to ammonium and nitrate addition in an alpine steppe soil from Northern Tibet
文献类型：期刊论文
| 作者 | Hu, Yang4,5; Jiang, Hongmao4,5; Wang, Fenglan1; Xu, Zongheng1; Chen, Youchao3; Ma, Shuqin2; Yan, Yan4; Lu, Xuyang4 |
| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 23页码:12 |
| ISSN号 | 2351-9894 |
| 关键词 | Alpine steppe Nitrogen addition Greenhouse gas Global warming potential Qinghai-Tibetan plateau |
| DOI | 10.1016/j.gecco.2020.e01115 |
| 英文摘要 | Deposit of inorganic nitrogen (N) in different forms may divergently impact soil greenhouse gas (GHG) emissions and then aroused different feedback of global warming potential (GWP). Nevertheless, little information is available in alpine grassland ecosystems, it is far from elucidated. In this study, the effects of ammonium (NH4+-N) and nitrate (NO3--N) addition on GHG emissions were evaluated by using laboratory incubation for an alpine steppe soil in northern Tibet. Six-level N gradient was set for the incubation: 14 (2T), 28 (4T), 56 (8T), 112 (16T), 224 (32T), 448 (64T) kg.ha(-1).year(-1). Our results showed that NH4+-N and NO3--N addition significantly increased and decreased soil CO2, respectively. In general, NH4+-N addition had a stronger promotion to N2O emission and a stronger inhibition to CH4 uptake compared with NO3--N addition at same level. Besides, GHG emissions increased or decreased linearly with inorganic N addition gradient (P < 0.05), and sharp N2O emissions were observed when NH4+-N input amounts more than 400 kg ha(-1).year(-1) (64T). On the whole, there was an opposite responses of global warming potential (GWP) to NH4+-N and NO3--N addition, in which NH4+-N addition increased, but NO3--N addition decreased. The GWP was mainly contributed by CO2 emission (>84%) in alpine steppe soil from Northern Tibet. The results suggested that NO3--N input likely to be more eco-friendly than NH4+-N input in alpine steppe area, it may have implications in environmental policy related to the anthropogenic emissions of the two N forms. (C) 2020 The Authors. Published by Elsevier B.V. |
| 资助项目 | Nation Natural Science Foundation of China[41671262] ; Nation Natural Science Foundation of China[41877338] ; Nation Natural Science Foundation of China[41871049] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000568736700015 |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/15716]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Lu, Xuyang |
| 作者单位 | 1.Yunnan Normal Univ, Coll Tourism & Geog Sci, Kunming 650500, Yunnan, Peoples R China 2.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China 3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 5.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Yang,Jiang, Hongmao,Wang, Fenglan,et al. Opposite responses of global warming potential to ammonium and nitrate addition in an alpine steppe soil from Northern Tibet[J]. GLOBAL ECOLOGY AND CONSERVATION,2020,23:12. |
| APA | Hu, Yang.,Jiang, Hongmao.,Wang, Fenglan.,Xu, Zongheng.,Chen, Youchao.,...&Lu, Xuyang.(2020).Opposite responses of global warming potential to ammonium and nitrate addition in an alpine steppe soil from Northern Tibet.GLOBAL ECOLOGY AND CONSERVATION,23,12. |
| MLA | Hu, Yang,et al."Opposite responses of global warming potential to ammonium and nitrate addition in an alpine steppe soil from Northern Tibet".GLOBAL ECOLOGY AND CONSERVATION 23(2020):12. |
入库方式： OAI收割
来源：武汉植物园
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