气候变化领域集成服务门户(CCPortal): Response of carbon and water fluxes to dryness/wetness in China

CCPortal

DOI	10.3319/TAO.2020.08.25.01
	Response of carbon and water fluxes to dryness/wetness in China
	Zhao, Xiaohan; Zhang, Fangmin; Su, Rongmingzhu; Gao, Cao; Xing, Kaicheng
通讯作者	Zhang, FM (通讯作者)
发表日期	2021
ISSN	1017-0839
EISSN	2311-7680
起始页码	53
结束页码	67
卷号	32 期号:1
英文摘要	Carbon-water cycle of terrestrial ecosystem is the important process of energy and mass exchanges, which is greatly influenced by changes of wet/dry conditions. Recently, China is experiencing frequent extreme weather events. Many concerns have been raised to explore how and to what extent dryness/wetness have influenced the carbon-water cycle in China on the regional scale. In this study, we examined the effects of changes of dryness/wetness on gross primary productivity (GPP), evapotranspirationevapotranspiration (ET), and water use efficiency (WUE) in terrestrial ecosystems of China during 2001 - 2013 using standardized wet/dry anomaly index and Mann-Kendall method. Our analysis indicated that droughts hit extensively in 2001, 2006, 2009, and 2011, in contrast, extremely severe floods occurred in 2002, 2003, and 2010. Spatially, droughts increased obviously in south China but were alleviated in north China from 2001 to 2013. On average, GPP and WUE of China exhibited increasing trends but ET exhibited a decreasing trend. Severe dry/wet conditions (\|SPEI\| > 1) decreased GPP, ET, and WUE. Furthermore, the effect of dry stress on GPP, ET, and WUE was much more serious than the effect of wet stress. It was implied that the trends of GPP, ET, and WUE would not change greatly on the long-term scale, but extreme dry/wet events would enhance their change amplitudes in future.
关键词	NET PRIMARY PRODUCTIVITY DROUGHT INDEXES CLIMATE-CHANGE REDUCTION EUROPE IMPACT TREND PDSI
英文关键词	Precipitation Evapotranspiration Index (SPEI); Gross primary productivity (GPP); Evapotranspiration (ET); Water use efficiency (WUE); Dry/wet anomaly
语种	英语
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Oceanography
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Oceanography
WOS记录号	WOS:000647821000004
来源期刊	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
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/260236
推荐引用方式 GB/T 7714	Zhao, Xiaohan,Zhang, Fangmin,Su, Rongmingzhu,et al. Response of carbon and water fluxes to dryness/wetness in China[J]. 中国科学院青藏高原研究所,2021,32(1).
APA	Zhao, Xiaohan,Zhang, Fangmin,Su, Rongmingzhu,Gao, Cao,&Xing, Kaicheng.(2021).Response of carbon and water fluxes to dryness/wetness in China.TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,32(1).
MLA	Zhao, Xiaohan,et al."Response of carbon and water fluxes to dryness/wetness in China".TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 32.1(2021).