Effects of warming and nitrogen input on soil N2O emission from Qinghai-Tibetan Plateau: a synthesis
文献类型：期刊论文
| 作者 | Zhang, Bei4,5; Yu, Longfei5; Wang, Jinsong3; Tang, Hongqu4; Qu, Zhi2; Zhu, Tongbin1 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
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| 出版日期 | 2022-11-15 |
| 卷号 | 326页码:10 |
| ISSN号 | 0168-1923 |
| 关键词 | N2O emission Qinghai-Tibetan Plateau Warming Nitrogen Input |
| DOI | 10.1016/j.agrformet.2022.109167 |
| 通讯作者 | Yu, Longfei(longfei.yu@sz.tsinghua.edu.cn) |
| 英文摘要 | Significant changes in climate and perturbation from human activities have been reported over the Qinghai -Tibetan Plateau (QTP), likely altering the ecosystem nitrogen (N) cycling and thus N2O emission. So far, a number of studies have reported variabilities of N2O fluxes from background soil conditions, or conducted warming and N addition experiments to test these effects; however, a synthesized understanding of warming and N input on soil N2O emission is still lacking for the QTP. Here, based on available studies published for this region, we investigated spatiotemporal patterns of background N2O fluxes and performed a meta-analysis to examine the warming and N-addition effects on N2O emission. Annual N2O fluxes ranged from-0.33 to 2.14 kg N2O-N ha(-1) yr(-1) (mean =0.73), of which their spatial distributions across ecosystems were mainly reflected by mean annual precipitation. N2O fluxes during growing seasons were generally larger than those in non-growing seasons, but hot moments of N2O emission existed during freeze-thawing periods. Our meta-analysis showed that warming had a significantly negative but minor effect on N2O emission from non-permafrost soils, although the effect varied with warming magnitudes and methods. The negative response of N2O flux to warming could be explained by the associated decrease of soil moisture and enhancement of plant N uptake. In contrast, warming-induced thawing increases soil moisture in permafrost soils, which could stimulate N2O emission. N addition exhibited an overall positive impact on N2O emission over the QTP region, with a moderate emission factor (0.8%) lower than the IPCC value. Considering the moderate N2O emission from background soils (< 1 kg N2O-N ha(-1) yr(-1)) and common N limitation across ecosystems, our findings suggest that climate change and enhanced N inputs may not turn the QTP into a globally significant N2O source in the near future. |
| WOS关键词 | ALPINE MEADOW ; OXIDE EMISSIONS ; DEPOSITION ; FLUXES ; CO2 ; METAANALYSIS ; ECOSYSTEM ; STEPPE ; CH4 ; PRECIPITATION |
| 资助项目 | GuangDong Basic and Applied Basic Research Foundation[KDL Guangxi202104] ; Guangxi Key Science and Technology Innovation Base on Karst Dynamics[QD2022010C] ; Tsinghua Shenzhen International Graduate School ; [2020A1515110568] |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000868689200001 |
| 资助机构 | GuangDong Basic and Applied Basic Research Foundation ; Guangxi Key Science and Technology Innovation Base on Karst Dynamics ; Tsinghua Shenzhen International Graduate School |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186162]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yu, Longfei |
| 作者单位 | 1.CAGS, Inst Karst Geol, Karst Dynam Lab, MLR & Guangxi, Guilin 541004, Peoples R China 2.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, 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.Jinan Univ, Coll Life Sci & Technol, Guangzhou 510632, Peoples R China 5.Tsinghua Univ, Inst Environm & Ecol, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Bei,Yu, Longfei,Wang, Jinsong,et al. Effects of warming and nitrogen input on soil N2O emission from Qinghai-Tibetan Plateau: a synthesis[J]. AGRICULTURAL AND FOREST METEOROLOGY,2022,326:10. |
| APA | Zhang, Bei,Yu, Longfei,Wang, Jinsong,Tang, Hongqu,Qu, Zhi,&Zhu, Tongbin.(2022).Effects of warming and nitrogen input on soil N2O emission from Qinghai-Tibetan Plateau: a synthesis.AGRICULTURAL AND FOREST METEOROLOGY,326,10. |
| MLA | Zhang, Bei,et al."Effects of warming and nitrogen input on soil N2O emission from Qinghai-Tibetan Plateau: a synthesis".AGRICULTURAL AND FOREST METEOROLOGY 326(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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