Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13941 |
Shifts of growing-season precipitation peaks decrease soil respiration in a semiarid grassland | |
Ru, Jingyi1; Zhou, Yaqiong1; Hui, Dafeng1,2; Zheng, Mengmei1; Wan, Shiqiang1 | |
2018-03-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:3页码:1001-1011 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Changing precipitation regimes could have profound influences on carbon (C) cycle in the biosphere. However, how soil C release from terrestrial ecosystems responds to changing seasonal distribution of precipitation remains unclear. A field experiment was conducted for 4 years (2013-2016) to examine the effects of altered precipitation distributions in the growing season on soil respiration in a temperate steppe in the Mongolian Plateau. Over the 4 years, both advanced and delayed precipitation peaks suppressed soil respiration, and the reductions mainly occurred in August. The decreased soil respiration could be primarily attributable to water stress and subsequently limited plant growth (community cover and below ground net primary productivity) and soil microbial activities in the middle growing season, suggesting that precipitation amount in the middle growing season is more important than that in the early, late, or whole growing seasons in regulating soil C release in grasslands. The observations of the additive effects of advanced and delayed precipitation peaks indicate semiarid grasslands will release less C through soil respiratory processes under the projected seasonal redistribution of precipitation in the future. Our findings highlight the potential role of intra-annual redistribution of precipitation in regulating ecosystem C cycling in arid and semiarid regions. |
英文关键词 | carbon cycling climate change plants soil temperate steppe water |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425396700013 |
WOS关键词 | CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; EXTREME PRECIPITATION ; ALTERED PRECIPITATION ; RAINFALL VARIABILITY ; WATER AVAILABILITY ; CARBON ALLOCATION ; MESIC GRASSLAND ; ELEVATED CO2 ; RESPONSES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/16977 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng, Henan, Peoples R China; 2.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37203 USA |
推荐引用方式 GB/T 7714 | Ru, Jingyi,Zhou, Yaqiong,Hui, Dafeng,et al. Shifts of growing-season precipitation peaks decrease soil respiration in a semiarid grassland[J]. GLOBAL CHANGE BIOLOGY,2018,24(3):1001-1011. |
APA | Ru, Jingyi,Zhou, Yaqiong,Hui, Dafeng,Zheng, Mengmei,&Wan, Shiqiang.(2018).Shifts of growing-season precipitation peaks decrease soil respiration in a semiarid grassland.GLOBAL CHANGE BIOLOGY,24(3),1001-1011. |
MLA | Ru, Jingyi,et al."Shifts of growing-season precipitation peaks decrease soil respiration in a semiarid grassland".GLOBAL CHANGE BIOLOGY 24.3(2018):1001-1011. |
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