Convergence in temperature sensitivity of soil respiration: Evidence from the Tibetan alpine grasslands
文献类型：期刊论文
| 作者 | Wang, Yonghui2; Song, Chao3; Yu, Lingfei4; Mi, Zhaorong1,5; Wang, Shiping6,7; Zeng, Hui8; Fang, Changming9; Li, Jingyi2; He, Jin-Sheng |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2018 |
| 卷号 | 122页码:50-59 |
| 关键词 | Soil respiration Singular Spectrum Analysis Temperature sensitivity Substrate availability Q(10) Climate-carbon model |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2018.04.005 |
| 文献子类 | Article |
| 英文摘要 | Recent studies proposed a convergence in the temperature sensitivity (Q(10)) of soil respiration (R-s) after eliminating confounding effects using novel approaches such as Singular Spectrum Analysis (SSA) or the mixed effects model (MEM) method. However, SSA has only been applied to eddy covariance data for estimating the Q(10) with air temperature, which may result in underestimations in responses of below-ground carbon cycling processes to climate warming in coupled climate-carbon models; MEM remains untested for its suitability in single-site studies. To examine the unconfounded Q(10) of R-s these two novel methods were combined with directly measured R-s for 6 years in two Tibetan alpine ecosystems. The results showed that, 1) confounded Q(10) of Rs estimated from seasonal R-s-temperature relationship positively correlated with the seasonality of R-s and 2) estimates of unconfounded Q(10) of R-s using SSA (mean = 2.4, 95% confidence interval (CI): 2.1-2.7) and MEM (mean = 3.2, 95% CI: 2.3-4.2) were consistent with the theoretical subcellular-level Q(10) (approximate to 2.4). These results support the convergence in the Q(10) of R-s and imply a conserved R-s-temperature relationship. These findings indicate that the seasonality of R-s has to be eliminated from estimating the Q(10) of R-s, otherwise the estimates should be questionable. They also indicate that seasonal Q(10) and its responses to warming should not be directly used in carbon-climate models as they contain confounding effects. |
| 学科主题 | Soil Science |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1879-3428 |
| WOS关键词 | ELEVATED CO2 ; HETEROTROPHIC RESPIRATION ; TERRESTRIAL ECOSYSTEMS ; GLOBAL CONVERGENCE ; CLIMATE-CHANGE ; CARBON ; DEPENDENCE ; PHOTOSYNTHESIS ; TIME ; DECOMPOSITION |
| 语种 | 英语 |
| WOS记录号 | WOS:000435053800006 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Basic Research Program of ChinaNational Basic Research Program of China [2014CB954000] ; National Nature Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31630009, 31600385, 31670454] ; National Key Research and Development Program of China [2016YFC0500602] ; Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2015BAC02B04] ; Natural Science Foundation of Inner Mongolia [2015ZD05] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20506]  |
| 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 Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 2.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Key Lab Earth Surface Proc,Minist Educ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 3.Inner Mongolia Univ, Sch Ecol & Environm, Dept Ecol, 235 West Coll Rd, Hohhot 010021, Peoples R China 4.Univ Georgia, Odum Sch Ecol, 140 East Green St, Athens, GA 30602 USA 5.Chinese Acad Agr Sci, Farmland Irrigat Res Inst, Xinxiang 453002, Peoples R China 6.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R China 7.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Divers, Beijing 100085, Peoples R China 8.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 9.Peking Univ, Key Lab Urban Habitat Environm Sci & Technol, Shenzhen Grad Sch, Shenzhen 518005, Peoples R China 10.Fudan Univ, Key Lab Biodivers & Ecol Engn, Coastal Ecosyst Res Stn Yangtze River Estuary, Minist Educ,Inst Biodivers Sci, Shanghai 200433, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yonghui,Song, Chao,Yu, Lingfei,et al. Convergence in temperature sensitivity of soil respiration: Evidence from the Tibetan alpine grasslands[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,122:50-59. |
| APA | Wang, Yonghui.,Song, Chao.,Yu, Lingfei.,Mi, Zhaorong.,Wang, Shiping.,...&He, Jin-Sheng.(2018).Convergence in temperature sensitivity of soil respiration: Evidence from the Tibetan alpine grasslands.SOIL BIOLOGY & BIOCHEMISTRY,122,50-59. |
| MLA | Wang, Yonghui,et al."Convergence in temperature sensitivity of soil respiration: Evidence from the Tibetan alpine grasslands".SOIL BIOLOGY & BIOCHEMISTRY 122(2018):50-59. |
入库方式： OAI收割
来源：植物研究所
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。