Plant functional group controls litter decomposition rate and its temperature sensitivity: An incubation experiment on litters from a boreal peatland in northeast China
文献类型：期刊论文
| 作者 | Mao, Rong1,2; Zhang, Xinhou1; Song, Changchun1; Wang, Xianwei1; Finnegan, Patrick M.3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 626页码:678-683 |
| 关键词 | Litter decomposition Plant functional group Peatland Sphagnum Temperature sensitivity |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.01.162 |
| 英文摘要 | In boreal peatlands, litter decomposition plays an important role inmodulating ecosystemcarbon (C) cycling and nutrient turnover. However, how climate warming and plant functional group interact to affect litter decomposition is still unclear in these ecosystems. Here, we collected fresh litters of six plant functional groups (nitrogen (N)-fixing species, deciduous tree, deciduous shrub, evergreen shrub, graminoid, and Sphagnum moss) from a boreal peatland located in northeast China. A laboratory incubation experimentwas used to determine the effect of temperature (10 degrees C vs. 20 degrees C) on microbial respiration and mass loss during decomposition. Among the six functional groups, the litters of N-fixing species and deciduous shrub, followed by deciduous tree, generally had the greatest mass losses and microbial respiration rates, whereas the Sphagnum moss decomposed with the slowest rate at both incubation temperatures. Increasing incubation temperature from 10 degrees C to 20 degrees C, microbial respiration rate and mass loss increased slightly for Sphagnum moss litters (25% and 19%, respectively), but increased dramatically for vascular plant litters (84-135% and 49-85%, respectively). For litters from vascular plants, both decomposition rate and temperature sensitivity showed a tight linear correlation with the initial C:N and C: phosphorus ratios. Considering that climate warming will cause increased dominance of woody plant species coupledwith decreased cover by Sphagnum mosses, this study provides clear evidence that climate warming and the associated changes to vegetation community composition can synergistically accelerate plant litter decomposition in boreal peatlands. (C) 2018 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[31570479] ; National Natural Science Foundation of China[41671091] ; National Natural Science Foundation of China[41103037] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-DQC013] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000428194000067 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/6287]  |
| 专题 | 生态水文研究中心 |
| 通讯作者 | Zhang, Xinhou |
| 作者单位 | 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, 4888 Shengbei Rd, Changchun 130102, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Three Gorges Inst Ecol Environm, 266 Fangzheng Rd, Chongqing 400714, Peoples R China 3.Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Perth, WA 6009, Australia |
| 推荐引用方式 GB/T 7714 | Mao, Rong,Zhang, Xinhou,Song, Changchun,et al. Plant functional group controls litter decomposition rate and its temperature sensitivity: An incubation experiment on litters from a boreal peatland in northeast China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,626:678-683. |
| APA | Mao, Rong,Zhang, Xinhou,Song, Changchun,Wang, Xianwei,&Finnegan, Patrick M..(2018).Plant functional group controls litter decomposition rate and its temperature sensitivity: An incubation experiment on litters from a boreal peatland in northeast China.SCIENCE OF THE TOTAL ENVIRONMENT,626,678-683. |
| MLA | Mao, Rong,et al."Plant functional group controls litter decomposition rate and its temperature sensitivity: An incubation experiment on litters from a boreal peatland in northeast China".SCIENCE OF THE TOTAL ENVIRONMENT 626(2018):678-683. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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