干旱区生态环境知识资源中心(Arid): Increased precipitation enhances soil respiration in a semi-arid grassland on the Loess Plateau, China

Arid

DOI	10.7717/peerj.10729
	Increased precipitation enhances soil respiration in a semi-arid grassland on the Loess Plateau, China
	Wang, Yutao; Xie, Yingzhong; Rapson, Gillian; Ma, Hongbin; Jing, Le; Zhang, Yi; Zhang, Juan; Li, Jianping
通讯作者	Li, JP (corresponding author), Ningxia Univ, Sch Agr, Yinchuan, Ningxia, Peoples R China.
来源期刊	PEERJ
ISSN	2167-8359
出版年	2021
卷号	9
英文摘要	Background. Precipitation influences the vulnerability of grassland ecosystems, especially upland grasslands, and soil respiration is critical for carbon cycling in arid grassland ecosystems which typically experience more droughty conditions. Methods. We used three precipitation treatments to understand the effect of precipitation on soil respiration of a typical arid steppe in the Loess Plateau in north-western China. Precipitation was captured and relocated to simulate precipitation rates of 50%, 100%, and 150% of ambient precipitation. Results and Discussion. Soil moisture was influenced by all precipitation treatments. Shoot biomass was greater, though non-significantly, as precipitation increased. However, both increase and decrease of precipitation significantly reduced root biomass. There was a positive linear relationship between soil moisture and soil respiration in the study area during the summer (July and August), when most precipitation fell. Soil moisture, soil root biomass, pH, and fungal diversity were predictors of soil respiration based on partial least squares regression, and soil moisture was the best of these. Conclusion. Our study highlights the importance of increased precipitation on soil respiration in drylands. Precipitation changes can cause significant alterations in soil properties, microbial fungi, and root biomass, and any surplus or transpired moisture is fed back into the climate, thereby affecting the rate of soil respiration in the future.
英文关键词	Climate change Respiration Precipitation Soil respiration Typical steppe Loess Plateau
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000613910100008
WOS关键词	CLIMATE-CHANGE ; MICROBIAL DIVERSITY ; ECOSYSTEM CARBON ; RE-VEGETATION ; TEMPERATURE ; VARIABILITY ; RESPONSES ; PATTERNS ; MOISTURE ; WATER
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348091
作者单位	[Wang, Yutao; Xie, Yingzhong; Ma, Hongbin; Jing, Le; Zhang, Yi; Zhang, Juan; Li, Jianping] Ningxia Univ, Sch Agr, Yinchuan, Ningxia, Peoples R China; [Rapson, Gillian] Massey Univ, Sch Agr & Environm, Palmerston North, New Zealand
推荐引用方式 GB/T 7714	Wang, Yutao,Xie, Yingzhong,Rapson, Gillian,et al. Increased precipitation enhances soil respiration in a semi-arid grassland on the Loess Plateau, China[J],2021,9.
APA	Wang, Yutao.,Xie, Yingzhong.,Rapson, Gillian.,Ma, Hongbin.,Jing, Le.,...&Li, Jianping.(2021).Increased precipitation enhances soil respiration in a semi-arid grassland on the Loess Plateau, China.PEERJ,9.
MLA	Wang, Yutao,et al."Increased precipitation enhances soil respiration in a semi-arid grassland on the Loess Plateau, China".PEERJ 9(2021).