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| Sustained increases in soil respiration accompany increased carbon input under long-term warming across global grasslands | |
Yan, Yingjie1; Wang, Jinsong; Tian, Dashuan; Luo, Yiqi2; Xue, Xian3; Peng, Fei3; He, Jin-Sheng; Liu, Lingli5 ; Jiang, Lifen2; Wang, Xin5; Wang, Yonghui6; Song, Lei1; Niu, Shuli1
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| 2022 | |
| 发表期刊 | GEODERMA
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| ISSN | 0016-7061 |
| 卷号 | 428 |
| 摘要 | Respiratory effluxes of carbon (C) from the soil to the atmosphere are expected to rise with temperature, potentially intensifying future climate warming. However, whether and how this increase would be sustained under long-term warming is not well understood. Here, we combined a manipulation experiment in an alpine meadow with a global meta-analysis to explore the mechanisms underlying the long-term responses of soil respiration to climate warming. The results from the experiment in the alpine meadow showed that the warming-induced increase in net primary productivity (NPP, 23.6 %) explained 52 % of the increase in soil respiration across 6 years. In contrast, the warming-induced changes in soil moisture, soil temperature, microbial biomass C or nitrogen were not significantly correlated with soil respiration responses. Consistently, in the global meta- analysis, both soil respiration and NPP continually increased over the years by an average of 9.5 % and 15.9 %, respectively. The increases in soil respiration were also primarily correlated with the continued increases in NPP over this period. Notably, the sustained increase in soil respiration was mainly contributed by the response of autotrophic respiration, which was closely correlated with the sustained increase in belowground NPP under warming. The results from both our field experiment and meta-analysis suggest that the increased soil respiration under climate warming was at least partly from the stimulation of C input in grasslands. The simultaneous in-creases in soil respiration and NPP may counteract the expected positive terrestrial C-climate feedback and should be considered in land models to more accurately predict future climate change. |
| 关键词 | Climate warming Soil respiration Net primary productivity Meta-analysis Grassland |
| 学科领域 | Soil Science |
| DOI | 10.1016/j.geoderma.2022.116157 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; INTERANNUAL VARIABILITY ; ECOSYSTEM CARBON ; CYCLE FEEDBACK ; AUTOTROPHIC RESPIRATION ; SEMIARID ECOSYSTEMS ; THERMAL ADAPTATION ; ELEVATED CO2 ; RESPONSES ; IMPACTS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000874918500003 |
| 出版者 | ELSEVIER |
| 文献子类 | Article |
| 出版地 | AMSTERDAM |
| EISSN | 1872-6259 |
| 资助机构 | National Natural Science Foundation of China [31625006, 31988102] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0302] |
| 作者邮箱 | sniu@igsnrr.ac.cn |
| 作品OA属性 | hybrid |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/29017 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Dept Ecol & Environm, Beijing 100049, Peoples R China 3.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China 5.Lanzhou Univ, Inst Innovat Ecol, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosystems, Lanzhou 730000, Peoples R China 6.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Xiangshan 100093, Beijing, Peoples R China 7.Inner Mongolia Univ, Sch Ecol & Environm, Dept Ecol, Hohhot 010021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Yingjie,Wang, Jinsong,Tian, Dashuan,et al. Sustained increases in soil respiration accompany increased carbon input under long-term warming across global grasslands[J]. GEODERMA,2022,428. |
| APA | Yan, Yingjie.,Wang, Jinsong.,Tian, Dashuan.,Luo, Yiqi.,Xue, Xian.,...&Niu, Shuli.(2022).Sustained increases in soil respiration accompany increased carbon input under long-term warming across global grasslands.GEODERMA,428. |
| MLA | Yan, Yingjie,et al."Sustained increases in soil respiration accompany increased carbon input under long-term warming across global grasslands".GEODERMA 428(2022). |
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| 1705286172_d12df749b（6970KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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