气候变化领域集成服务门户(CCPortal): Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming

CCPortal

DOI	10.1007/s11104-020-04438-y
	Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming
	Wang, Yonghui; Song, Chao; Liu, Huiying; Wang, Shiping; Zeng, Hui; Luo, Caiyun; He, Jin-Sheng
通讯作者	He, JS (通讯作者)
发表日期	2021
ISSN	0032-079X
EISSN	1573-5036
起始页码	75
结束页码	91
卷号	458 期号:1-2
英文摘要	Background and aims Soil respiration (R-s) is expected to positively feedback to climate warming. The strength of this feedback is uncertain as numerous environmental factors, such as precipitation and soil moisture, can moderate the warming response of R-s. Methods We combined seven-year R-s measurements in a warming experiment in the Tibetan alpine grassland with a meta-analysis on grassland warming experiments globally to investigate how precipitation and soil moisture influences the warming response of R-s. We further analyzed the warming responses of heterotrophic (R-h) and autotrophic (R-a) components of R-s. Results Warming enhanced growing-season R-s in the wet years but decreased it in the dry years in the field experiment at the Tibetan grassland. Precipitation modulated the warming responses of growing-season R-s via R-h, but not R-a. Consistent with the field experiment, a positive relationship between precipitation and the warming response of growing-season R-s was also observed in the global-scale meta-analysis on grassland warming experiments. Conclusions Precipitation influences the warming effects on R-s and could result in variation in warming response of R-s across years and experimental systems. Empirical functions provided by this study could be used to reduce the uncertainty in predicting R-s in a warmer future.
关键词	CARBON-CYCLE FEEDBACK TEMPERATURE SENSITIVITY CLIMATE-CHANGE HETEROTROPHIC RESPIRATION MICROBIAL RESPIRATION THERMAL-ACCLIMATION SPECIES COMPOSITION TIBETAN PLATEAU ELEVATED CO2 ECOSYSTEM
英文关键词	Climate changes; Heterotrophic respiration; Autotrophic respiration; Tibetan plateau; Grassland ecosystems; Climate-carbon model
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:000515712200002
来源期刊	PLANT AND SOIL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260480
推荐引用方式 GB/T 7714	Wang, Yonghui,Song, Chao,Liu, Huiying,et al. Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming[J]. 中国科学院青藏高原研究所,2021,458(1-2).
APA	Wang, Yonghui.,Song, Chao.,Liu, Huiying.,Wang, Shiping.,Zeng, Hui.,...&He, Jin-Sheng.(2021).Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming.PLANT AND SOIL,458(1-2).
MLA	Wang, Yonghui,et al."Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming".PLANT AND SOIL 458.1-2(2021).