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A cross-biome synthesis of soil respiration and its determinants under simulated precipitation changes
文献类型：期刊论文
| 作者 | Liu, Lingli ; Wang, Xin2; Lajeunesse, Marc J.; Miao, Guofang4; Piao, Shilong5; Wan, Shiqiang6; Wu, Yuxin1; Wang, Zhenhua2; Yang, Sen2; Li, Ping2
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| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 22期号:4页码:1394-1405 |
| 关键词 | apparent Q(10) aridity index drought meta-analysis precipitation regime soil moisture soil temperature wet |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.13156 |
| 文献子类 | Article |
| 英文摘要 | Soil respiration (R-s) is the second-largest terrestrial carbon (C) flux. Although R-s has been extensively studied across a broad range of biomes, there is surprisingly little consensus on how the spatiotemporal patterns of R-s will be altered in a warming climate with changing precipitation regimes. Here, we present a global synthesis R-s data from studies that have manipulated precipitation in the field by collating studies from 113 increased precipitation treatments, 91 decreased precipitation treatments, and 14 prolonged drought treatments. Our meta-analysis indicated that when the increased precipitation treatments were normalized to 28% above the ambient level, the soil moisture, R-s,R- and the temperature sensitivity (Q(10)) values increased by an average of 17%, 16%, and 6%, respectively, and the soil temperature decreased by -1.3%. The greatest increases in R-s and Q(10) were observed in arid areas, and the stimulation rates decreased with increases in climate humidity. When the decreased precipitation treatments were normalized to 28% below the ambient level, the soil moisture and R-s values decreased by an average of -14% and -17%, respectively, and the soil temperature and Q(10) values were not altered. The reductions in soil moisture tended to be greater in more humid areas. Prolonged drought without alterations in the amount of precipitation reduced the soil moisture and R-s by -12% and -6%, respectively, but did not alter Q(10). Overall, our synthesis suggests that soil moisture and R-s tend to be more sensitive to increased precipitation in more arid areas and more responsive to decreased precipitation in more humid areas. The responses of R-s and Q(10) were predominantly driven by precipitation-induced changes in the soil moisture, whereas changes in the soil temperature had limited impacts. Finally, our synthesis of prolonged drought experiments also emphasizes the importance of the timing and frequency of precipitation events on ecosystem C cycles. Given these findings, we urge future studies to focus on manipulating the frequency, intensity, and seasonality of precipitation with an aim to improving our ability to predict and model feedback between R-s and climate change. |
| 学科主题 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-2486 |
| WOS关键词 | CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; MANIPULATION EXPERIMENTS ; TEMPERATURE SENSITIVITY ; GRASSLAND ECOSYSTEM ; SEMIARID GRASSLAND ; CO2 EFFLUX ; RESPONSES ; PULSES ; METAANALYSIS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000371515300007 |
| 出版者 | WILEY-BLACKWELL |
| 资助机构 | Chinese National Key Development Program for Basic Research [2013CB956304, 2014CB954003] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31522011] ; National Science Foundation (USA)National Science Foundation (NSF) [DEB-1451031] ; National 1000 Young Talents Program |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25194]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Henan Univ, State Key Lab Cotton Biol, Key Lab Plant Stress Biol, Coll Life Sci, Kaifeng 475004, Henan, Peoples R China 2.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Lajeunesse, Marc J.] Univ S Florida, Dept Integrat Biol, Tampa, FL 33620 USA 5.N Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27659 USA 6.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 7.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Liu, Lingli,Wang, Xin,Lajeunesse, Marc J.,et al. A cross-biome synthesis of soil respiration and its determinants under simulated precipitation changes[J]. GLOBAL CHANGE BIOLOGY,2016,22(4):1394-1405. |
| APA | Liu, Lingli.,Wang, Xin.,Lajeunesse, Marc J..,Miao, Guofang.,Piao, Shilong.,...&Deng, Meifeng.(2016).A cross-biome synthesis of soil respiration and its determinants under simulated precipitation changes.GLOBAL CHANGE BIOLOGY,22(4),1394-1405. |
| MLA | Liu, Lingli,et al."A cross-biome synthesis of soil respiration and its determinants under simulated precipitation changes".GLOBAL CHANGE BIOLOGY 22.4(2016):1394-1405. |
入库方式： OAI收割
来源：植物研究所
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