干旱区生态环境知识资源中心(Arid): Asymmetric responses of soil respiration in three temperate steppes along a precipitation gradient in northern China revealed by soil-monolith transplanting experiment

Arid

DOI	10.1016/j.agrformet.2020.108126
	Asymmetric responses of soil respiration in three temperate steppes along a precipitation gradient in northern China revealed by soil-monolith transplanting experiment
	Li, Ying; Zhou, Zhenxing; Lei, Lingjie; Ru, Jingyi; Song, Jian; Zhong, Mingxing; Tian, Rui; Zhang, Ang; Zheng, Mengmei; Hui, Dafeng; Wan, Shiqiang
通讯作者	Wan, SQ
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2020
卷号	294
英文摘要	Responses and feedbacks of ecosystem carbon (C) cycling in the terrestrial biosphere to climate change pose the major challenge for Earth System Model projections. However, whether ecosystem C cycling among diverse vegetation types shows different sensitivities and the associated underlying mechanisms remain elusive. As part of a 5-year (2014-2018) soil monolith transplant experiment, this study was designed to examine the influences of night warming, decreased precipitation, and increased precipitation on soil respiration in the three temperate steppes (i.e. desert, typical, and meadow steppes) along a precipitation gradient on the Mongolian Plateau. Over the 5 years, night warming had no effect on soil respiration in any of the three steppes. Decreased precipitation reduced soil respiration, whereas increased precipitation stimulated it in each steppe. In addition, the sensitivity of soil respiration to increased precipitation was larger than that to decreased precipitation, suggesting a positive asymmetry of soil respiration in response to changing precipitation. The soil respiration responses were predominately determined by both soil water availability and belowground net primary productivity in the desert and typical steppes, but by soil total C alone in the meadow steppe. These findings not only improve mechanistic understanding on the responses of soil respiration in various grassland ecosystems, but also facilitate the extrapolation from local to regional scale for the robust projections of terrestrial C-climate change feedbacks.
英文关键词	Climate warming Precipitation change Precipitation sensitivity Soil CO2 efflux Temperate grassland Water availability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000566373700001
WOS关键词	CARBON-CYCLE FEEDBACKS ; CLIMATE-CHANGE ; CO2 EFFLUX ; TERRESTRIAL ECOSYSTEMS ; DIFFERENTIAL RESPONSES ; LITTER DECOMPOSITION ; WATER AVAILABILITY ; MICROBIAL BIOMASS ; PLANT ; GRASSLAND
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326055
作者单位	[Li, Ying; Zhou, Zhenxing; Lei, Lingjie; Ru, Jingyi; Zhong, Mingxing; Tian, Rui; Zhang, Ang; Zheng, Mengmei; Wan, Shiqiang] Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng 475004, Henan, Peoples R China; [Song, Jian; Wan, Shiqiang] Hebei Univ, Coll Life Sci, Inst Life Sci & Green Dev, Baoding 071002, Hebei, Peoples R China; [Hui, Dafeng] Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA
推荐引用方式 GB/T 7714	Li, Ying,Zhou, Zhenxing,Lei, Lingjie,et al. Asymmetric responses of soil respiration in three temperate steppes along a precipitation gradient in northern China revealed by soil-monolith transplanting experiment[J],2020,294.
APA	Li, Ying.,Zhou, Zhenxing.,Lei, Lingjie.,Ru, Jingyi.,Song, Jian.,...&Wan, Shiqiang.(2020).Asymmetric responses of soil respiration in three temperate steppes along a precipitation gradient in northern China revealed by soil-monolith transplanting experiment.AGRICULTURAL AND FOREST METEOROLOGY,294.
MLA	Li, Ying,et al."Asymmetric responses of soil respiration in three temperate steppes along a precipitation gradient in northern China revealed by soil-monolith transplanting experiment".AGRICULTURAL AND FOREST METEOROLOGY 294(2020).