干旱区生态环境知识资源中心(Arid): The variation of the 400 mm isohyet and its influence mechanism on the Qinghai-Tibet Plateau from 1982 to 2021

Arid

DOI	10.1016/j.ecolind.2024.111746
	The variation of the 400 mm isohyet and its influence mechanism on the Qinghai-Tibet Plateau from 1982 to 2021
	Li, Jiajia; Liu, Guohua; Zhao, Junyan; Zuo, Lingli; Zheng, Shuyuan; Su, Xukun
通讯作者	Su, XK
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2024
卷号	159
英文摘要	The Qinghai -Tibet Plateau (QTP) has experienced an overall increase in humidity over recent decades, but the changes in aridity and humidity within the transitional climate zone, as well as the underlying factors driving these changes, remain unclear. We present a framework to quantify the spatiotemporal variations transitional zone indicated by 400 mm isohyets and its driving factors on the QTP. The results show that the 400 mm isohyets has moved an average of 87.85 km to the north-west direction, moving an average 0.04 km per year, and a maximum distance traveled of 261 km (northernmost orientation) during the past four decades. Over time, the variation in isohyets exhibited distinct piecewise characteristics and obvious spatial differences. The central section (95 degrees E-101 degrees E) remained relatively stable, whereas the eastern section (101 degrees E-104 degrees E) and western section (91 degrees E-95 degrees E) experienced violent fluctuations. The east-west boundary of the spatiotemporal movement of the 400 mm isohyets was utilized to delineate the eastern humid zone, transitional zone, and western arid zone. The transition zone interannual precipitation has experiences more significant interdecadal oscillations between dry and wet climates, while the western region has experienced the opposite. The East Asian summer monsoon (EASM) exhibited a positive correlation with precipitation, increased precipitation is the main factor driving the westward and northward movement of the 400 mm isohyets. The vegetation response to precipitation exhibited greater variability in the transitional zone. This study provides a novel reference for quantitatively comprehending the aridity and humidity of climatic conditions, as well as the driving mechanisms behind regional climate change in the QTP.
英文关键词	400 mm isohyet Qinghai -Tibet Plateau Precipitation Dry and wet alternation Asian monsoon
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001200387100001
WOS关键词	CLIMATE-CHANGE ; CHINA ; PRECIPITATION ; DROUGHT ; VARIABILITY ; MONSOON ; ZONE ; DRY
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403380
推荐引用方式 GB/T 7714	Li, Jiajia,Liu, Guohua,Zhao, Junyan,et al. The variation of the 400 mm isohyet and its influence mechanism on the Qinghai-Tibet Plateau from 1982 to 2021[J],2024,159.
APA	Li, Jiajia,Liu, Guohua,Zhao, Junyan,Zuo, Lingli,Zheng, Shuyuan,&Su, Xukun.(2024).The variation of the 400 mm isohyet and its influence mechanism on the Qinghai-Tibet Plateau from 1982 to 2021.ECOLOGICAL INDICATORS,159.
MLA	Li, Jiajia,et al."The variation of the 400 mm isohyet and its influence mechanism on the Qinghai-Tibet Plateau from 1982 to 2021".ECOLOGICAL INDICATORS 159(2024).