Knowledge Management System Of Institute Of Botany,CAS
| Widespread asymmetric response of soil heterotrophic respiration to warming and cooling | |
Liu, Yuan1; Wen, Xuefa1; Zhang, Yunhai2,3 ; Tian, Jing1; Gao, Yang; Ostle, Anichloas J.; Niu, Shuli; Chen, Shiping2; Sun, Xiaomin; He, Nianpeng1,5
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| 2018 | |
| 发表期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| 卷号 | 635页码:423-431 |
| 摘要 | Soil is the largest organic carbon (C) pool in terrestrial ecosystems. Periodic changes in environmental temperature occur diurnally and seasonally; yet, the response of soil organic matter (SOM) decomposition to varying temperatures remains unclear. In this study, we conducted a modified incubation experiment using soils from 16 forest ecosystems in China with periodically and continuously varying incubation temperature to investigate how heterotrophic respiration (Rh) responds to different temperature patterns (both warming and cooling temperature ranging between 5 and 30 degrees C). Our results showed a pronounced asymmetric response of Rh to temperature warming and cooling among the soils of all forest ecosystems, with Rh increasing more rapidly during the warming phase compared to the cooling phase. This asymmetric response of Rh to warming and cooling temperatures was widespread in all soils. In addition, the amplitude of this asymmetric response differed among different forest ecosystems, with subtropical and warm-temperate forest ecosystems exhibiting greater asymmetric responses. Path analyses showed that soil pH and the microbial community explained most of the variation in this asymmetric response. Furthermore, the widespread asymmetric response of Rh to warming and cooling temperatures suggests that accumulated SOM decomposition might be overestimated on average by 20% for warming alone when compared with admix warming and cooling. These findings provide new insights on the responses of Rh to natural shifts in temperature, emphasizing the need to consider this widespread asymmetric response of Rh to warming and cooling phases to predict C-climate feedback with great accuracy, especially under future non-uniform warming scenarios. (C) 2018 Elsevier B.V. All rights reserved. |
| 关键词 | Heterotrophic respiration Warming Cooling Asymmetric response Forest |
| 学科领域 | Environmental Sciences |
| DOI | 10.1016/j.scitotenv.2018.04.145 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | ORGANIC-MATTER DECOMPOSITION ; RECIPROCAL TRANSLOCATION EXPERIMENT ; MICROBIAL COMMUNITY COMPOSITION ; TEMPERATURE SENSITIVITY ; ARCTIC SOIL ; CARBON ; VEGETATION ; FORESTS ; QUALITY ; GROWTH |
| WOS记录号 | WOS:000436494400042 |
| 出版者 | ELSEVIER SCIENCE BV |
| 文献子类 | Article |
| 出版地 | AMSTERDAM |
| EISSN | 1879-1026 |
| 资助机构 | National Key R&D program of China [2017YFC0503904] ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41571130043, 41671045] ; program of Youth Innovation Research Team Project [LENOM2016Q0005] |
| 作者邮箱 | henp@igsnnr.ac.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/20529 |
| 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, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA 5.Ostle, Anichloas J.] Univ Lancaster, Ctr Ecol & Hydrol, Lancaster Environm Ctr, Lib Ave, Lancaster LA1 4AP, England 6.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yuan,Wen, Xuefa,Zhang, Yunhai,et al. Widespread asymmetric response of soil heterotrophic respiration to warming and cooling[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,635:423-431. |
| APA | Liu, Yuan.,Wen, Xuefa.,Zhang, Yunhai.,Tian, Jing.,Gao, Yang.,...&He, Nianpeng.(2018).Widespread asymmetric response of soil heterotrophic respiration to warming and cooling.SCIENCE OF THE TOTAL ENVIRONMENT,635,423-431. |
| MLA | Liu, Yuan,et al."Widespread asymmetric response of soil heterotrophic respiration to warming and cooling".SCIENCE OF THE TOTAL ENVIRONMENT 635(2018):423-431. |
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| 29677668.pdf（2287KB） | 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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