Influence of simulated warming on soil nitrogen fractions in a Tibetan alpine meadow
文献类型：期刊论文
| 作者 | Wang, Xinyu4; Cao, Zhiyuan4; Wang, Chuanyu4; Xu, Li3; Zong, Ning3; Zhang, Jinjing4; He, Nianpeng1,2,3 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2022-10-07 |
| 页码 | 11 |
| ISSN号 | 1439-0108 |
| 关键词 | Simulated warming Alkali-hydrolyzable nitrogen Acid-hydrolyzable nitrogen Ammonium nitrogen Nitrate nitrogen Tibetan Plateau |
| DOI | 10.1007/s11368-022-03350-5 |
| 通讯作者 | Zhang, Jinjing(zhangjinjing@126.com) ; He, Nianpeng(henp@igsnrr.ac.cn) |
| 英文摘要 | Purpose Tibetan Plateau is ecologically fragile and sensitive region to global climate change. However, the impacts of climate change on nitrogen (N) cycling in soil remain unclear, which have restricted our knowledge of how N cycling in alpine ecosystems responds to climate change in the future. Methods In this study, a 5-year field simulated warming experiment using open top chambers was performed in a Tibetan alpine meadow to explore the impacts of winter warming (WW) and year-round warming (YW) on total N and N fractions in soil. The relationships between N fractions and environmental factors were evaluated. Results Relative to unwarmed control (CK), WW and YW did not significantly affect total N, NH4+-N, NO3--N, and total organic N contents. The alkali-hydrolyzable N and acid-hydrolyzable N (ammonia N, amino acid N, amino sugar N, and hydrolyzable unknown N) contents were significantly lower while acid-insoluble N content was significantly higher in WW and YW than in CK. Redundancy analysis showed that plant aboveground biomass was the most significant factor in shaping total N and N fractions. Structural equation modeling showed that fungi had direct negative effect but actinomycetes exhibited direct positive effect on hydrolyzable unknown N, which exhibited direct positive effect on plant aboveground biomass. Conclusion Our results suggested that climate warming promoted accumulation of highly stable organic N fraction, which may cause the decline of soil N supplying capacity. This study provides a novel understanding about the responses of alpine grassland to future climate change in terms of N cycling. |
| WOS关键词 | ORGANIC NITROGEN ; INORGANIC NITROGEN ; MICROBIAL BIOMASS ; ENZYME-ACTIVITIES ; CLIMATE ; CARBON ; NUTRIENTS ; DYNAMICS ; PLATEAU ; IMPACTS |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0606-2] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000864973000002 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185654]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Jinjing; He, Nianpeng |
| 作者单位 | 1.Northeast Forestry Univ, Ctr Ecol Res, Harbin 150040, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Jilin Agr Univ, Coll Resource & Environm Sci, Key Lab Soil Resource Sustainable Utilizat Jilin, Changchun 130118, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xinyu,Cao, Zhiyuan,Wang, Chuanyu,et al. Influence of simulated warming on soil nitrogen fractions in a Tibetan alpine meadow[J]. JOURNAL OF SOILS AND SEDIMENTS,2022:11. |
| APA | Wang, Xinyu.,Cao, Zhiyuan.,Wang, Chuanyu.,Xu, Li.,Zong, Ning.,...&He, Nianpeng.(2022).Influence of simulated warming on soil nitrogen fractions in a Tibetan alpine meadow.JOURNAL OF SOILS AND SEDIMENTS,11. |
| MLA | Wang, Xinyu,et al."Influence of simulated warming on soil nitrogen fractions in a Tibetan alpine meadow".JOURNAL OF SOILS AND SEDIMENTS (2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。