气候变化领域集成服务门户(CCPortal): Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects

CCPortal

DOI	10.1016/j.atmosres.2024.107405
	Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects
	Ge, Chenhao; Sun, Peng; Yao, Rui; Wang, Yufei; Chen, Wenhui; Bian, Yaojin; Zhang, Qiang
发表日期	2024
ISSN	0169-8095
EISSN	1873-2895
起始页码	304
卷号	304
英文摘要	The increasing frequency and severity of droughts will seriously impact agricultural production and the ecological environment. Studying the drought lag (DL) and drought cumulative (DC) effects of propagation between meteorological drought to ecological drought can help to enhance the capacity of ecological drought monitoring. Therefore, in this study, the meteorological drought index (non-stationary standardized precipitation evapotranspiration index, NSPEI) and ecological drought index (vegetation condition index, VCI) were obtained using ERA5 reanalysis data and MODIS vegetation index data, respectively. The purpose of this study was to reveal the DL and DC effects of the propagation of meteorological drought to ecological drought and investigate the spatial heterogeneity of drought propagation in different underlying surfaces and climate zones. The results indicated that: 1) Northern China is more vulnerable to severe and extreme droughts, and 68% of the region has significantly slower ecological droughts. 2) The western temperate zone, highland climate zone, and subtropical zone have shorter DL times for subtropical drought and longer DL times for eastern temperate zones. 3) DC and DL effects have similar spatial distributions. However, the DC duration of grassland and bare ground is shorter in the northwest and south, and longer in grassland and farmland in northern China. 4) China overall is more affected by the DC effect, while the DL effect is more significant in southern temperate zone.
英文关键词	Meteorological drought; Ecological drought; Drought propagation; Lag; Cumulative
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001231183800001
来源期刊	ATMOSPHERIC RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297196
作者单位	Anhui Normal University; Anhui Normal University; Anhui Normal University; Beijing Normal University
推荐引用方式 GB/T 7714	Ge, Chenhao,Sun, Peng,Yao, Rui,et al. Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects[J],2024,304.
APA	Ge, Chenhao.,Sun, Peng.,Yao, Rui.,Wang, Yufei.,Chen, Wenhui.,...&Zhang, Qiang.(2024).Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects.ATMOSPHERIC RESEARCH,304.
MLA	Ge, Chenhao,et al."Characteristics of propagation from meteorological drought to ecological drought in China: Lag and cumulative effects".ATMOSPHERIC RESEARCH 304(2024).