Plant functional groups regulate soil respiration responses to nitrogen addition and mowing over a decade
文献类型：期刊论文
| 作者 | Du, Yue1; Han, Hongyan2; Wang, Yanfen1; Zhong, Mingxing2; Hui, Dafeng2,3; Niu, Shuli4,5; Wan, Shiqiang2 |
| 刊名 | FUNCTIONAL ECOLOGY
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 32期号:4页码:1117-1127 |
| 关键词 | grassland land-use change plant community structure precipitation regime soil CO2 flux soil pH |
| ISSN号 | 0269-8463 |
| DOI | 10.1111/1365-2435.13045 |
| 通讯作者 | Wan, Shiqiang(swan@henu.edu.cn) |
| 英文摘要 | 1. Nitrogen (N) deposition and land-use practice (e.g. mowing) could have profound effects on soil respiration. However, the changes in other ecosystem components, such as plant functional groups (PFGs), may control soil carbon (C) efflux response to long term global change. 2. A 10-year (2005-2014) field experiment was conducted with both N addition (10g Nm(-2)year(-1)) and mowing (once a year) in a northern Chinese temperate grassland. We collected continuous data on soil respiration over 10years accompanied with data on abiotic and biotic factors, and attempted to determine (i) the temporal variation in soil respiration and its responses to N addition and mowing, (ii) the regulation of soil respiration by PFGs and the underlying long-term mechanisms of control. 3. Soil respiration varied significantly among years. This was mainly caused by changes in precipitation pattern (e.g. frequency and distribution) during the growing-season rather than total rainfall. N addition significantly suppressed soil respiration by 10.4% whereas mowing stimulated it by 8.4% over the 10years. The interaction of N addition with mowing had little effect on soil respiration. However, the significant effects of both N addition and mowing appeared only in the third year and thereafter, indicating the differences between long- and short-term responses. These long-term effects of N addition and mowing were mainly caused by changes in the PFGs of covers (e.g. grasses and forbs) and in soil pH rather than in soil microclimate. Forb-dominant patches had greater soil respiration than grass patches owing to their higher litter quality and photosynthetic capacity. 4. Our results highlight that shifts in above-ground plant community could play an important role in regulating soil respiration responses to N addition and mowing in the long-term. This is potentially important for improving our understanding of the link between above- and below-ground ecological processes. |
| WOS关键词 | LITTER DECOMPOSITION ; SEMIARID GRASSLAND ; NORTHERN CHINA ; CO2 EFFLUX ; INTERANNUAL VARIABILITY ; WATER AVAILABILITY ; MICROBIAL ACTIVITY ; INNER-MONGOLIA ; CLIMATE-CHANGE ; TIME-LAG |
| 资助项目 | Ministry of Science and Technology of the People's Republic of China[2013CB956301] ; National Natural Science Foundation of China[31430015] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000429323400025 |
| 出版者 | WILEY |
| 资助机构 | Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57414]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wan, Shiqiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China 2.Henan Univ, Sch Life Sci, State Key Lab Cotton Biol, Henan Key Lab Plant Stress Biol, Kaifeng, Henan, Peoples R China 3.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37203 USA 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 5.Univ Chinese Acad Sci, Dept Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Yue,Han, Hongyan,Wang, Yanfen,et al. Plant functional groups regulate soil respiration responses to nitrogen addition and mowing over a decade[J]. FUNCTIONAL ECOLOGY,2018,32(4):1117-1127. |
| APA | Du, Yue.,Han, Hongyan.,Wang, Yanfen.,Zhong, Mingxing.,Hui, Dafeng.,...&Wan, Shiqiang.(2018).Plant functional groups regulate soil respiration responses to nitrogen addition and mowing over a decade.FUNCTIONAL ECOLOGY,32(4),1117-1127. |
| MLA | Du, Yue,et al."Plant functional groups regulate soil respiration responses to nitrogen addition and mowing over a decade".FUNCTIONAL ECOLOGY 32.4(2018):1117-1127. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。