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 | Yang Hu4,5; Hongmao Jiang4,5 ; Fenglan Wang3; Zongheng Xu3; Youchao Chen1; Shuqin Ma2; Yan Yan5; Xuyang Lu5
|
| 刊名 | Global Ecology and Conservation
 |
| 出版日期 | 2020 |
| 页码 | e01115 |
| 关键词 | Alpine steppe Nitrogen addition Greenhouse gas Global warming potential Qinghai-Tibetan plateau |
| ISSN号 | 2351-9894 |
| DOI | 10.1016/j.gecco.2020.e01115 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 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 þ-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 þN and NO3 -N addition significantly increased and decreased soil CO2, respectively. In general, NH4 þ-N addition had a stronger promotion to N2O emission and a stronger inhibition toCH4 uptake compared with NO3 -Naddition 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 þ-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 þ-N and NO3 -N addition, in which NH4 þ-N addition increased, but NO3 -N addition decreased. The GWP was mainly contributed by CO2 emission (>84%) in alpine steppe soil from NorthernTibet. The results suggested that NO3 -N input likelyto be more eco-friendly than NH4 þ-N input in alpine steppe area, it may have implications in environmental policy related to the anthropogenic emissions of the two N forms. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34678]  |
| 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 | Xuyang Lu |
| 作者单位 | 1.Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; 2.College of Tourism, Henan Normal University, Xinxiang, 453007, China 3.College of Tourism and Geographic Sciences, Yunnan Normal University, Kunming, 650500, China; 4.University of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100101, China; 5.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; |
| 推荐引用方式 GB/T 7714 | Yang Hu,Hongmao Jiang,Fenglan Wang,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:e01115. |
| APA | Yang Hu.,Hongmao Jiang.,Fenglan Wang.,Zongheng Xu.,Youchao Chen.,...&Xuyang Lu.(2020).Opposite responses of global warming potential to ammonium and nitrate addition in an alpine steppe soil from northern Tibet.Global Ecology and Conservation,e01115. |
| MLA | Yang Hu,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 (2020):e01115. |
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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