干旱区生态环境知识资源中心(Arid): Do Extreme Climate Events Cause the Degradation of Malus sieversii Forests in China?

Arid

DOI	10.3389/fpls.2021.608211
	Do Extreme Climate Events Cause the Degradation of Malus sieversii Forests in China?
	Shan, Qianjuan; Ling, Hongbo; Zhao, Hangzheng; Li, Mengyi; Wang, Zikang; Zhang, Guangpeng
通讯作者	Ling, HB (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China. ; Ling, HB (corresponding author), Univ Chinese Acad Sci, Beijing, Peoples R China. ; Ling, HB (corresponding author), Xinjiang Aksu Oasis Agroecosyst Observat & Expt S, Urumqi, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Frequent extreme climate events have attracted considerable attention around the world. Malus sieversii in Xinjiang is the ancestor of cultivated apple, and it is mainly distributed in the Ili river valley at end of the Tianshan Mountains. Wild fruit forests have been degraded, but the cause remains unclear. In order to identify whether extreme climate events caused this degradation reanalysis data and atmospheric circulation indices were used to determine the trends and the reasons for extreme climate changes. Subsequently, we further investigated the effect of extreme climate events on wild fruit forest using characteristics of extreme climate indices and tree-ring chronology. We found increasing trends in both extreme precipitation and warm indices, and decreasing trends in cool indices. Extreme climate events were mainly associated with the Atlantic Multidecadal Oscillation (AMO). Analysis of data of wind and geopotential height field at 500 hPa showed that strengthening wind, increasing geopotential height, cyclone and anti-cyclone circulation drivers contributed to extreme climate events. In the non-degraded region, there were significant positive correlations between tree-ring chronology and both extreme precipitation and extreme warm indices (except for warm spell duration indicator). The other extreme indices (except for heavy rain days) had a large correlation range with tree-rings in a 4-8-year period. These results indicated that extreme precipitation and extreme warm indices intensified M. sieversii growth of the non-degraded region on multi-time scales. In contrast, the degraded region showed insignificant negative relationship between tree-ring chronology and both extreme precipitation and extreme warm indices [except for warm spell duration index (WSDI)], and significant negative correlations in a 4-8-year period were detected between tree-ring chronology and most of the extreme precipitation indices, including heavy rain days, very wet days, cold spell duration indicator, simple precipitation intensity index (SDII), and annual total precipitation. Under the long disturbance of inappropriate anthropic activities, extreme climate has caused the outbreak of pests and diseases resulting in the degeneration of wild fruit forest. Our study provides scientific guidance for the ecosystem conservation in wild fruit forest in China, and also across the region.
英文关键词	extreme climate indices atmospheric circulation anthropogenic impact dendrochronology of Malus sieversii trees the degraded wild fruit forest
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000668279200001
WOS关键词	NORTHWEST CHINA ; PRECIPITATION EXTREMES ; TEMPERATURE EXTREMES ; RIVER-BASIN ; ARID REGION ; DROUGHT ; TRENDS ; IMPACTS ; TREE ; RESPIRATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350327
作者单位	[Shan, Qianjuan; Ling, Hongbo; Wang, Zikang; Zhang, Guangpeng] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; [Shan, Qianjuan; Ling, Hongbo; Wang, Zikang; Zhang, Guangpeng] Univ Chinese Acad Sci, Beijing, Peoples R China; [Ling, Hongbo] Xinjiang Aksu Oasis Agroecosyst Observat & Expt S, Urumqi, Peoples R China; [Zhao, Hangzheng] China Univ Min & Technol, Sch Chem & Environm Engn, Beijing, Peoples R China; [Li, Mengyi] Tianjin Univ, Sch Civil Engn, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Shan, Qianjuan,Ling, Hongbo,Zhao, Hangzheng,et al. Do Extreme Climate Events Cause the Degradation of Malus sieversii Forests in China?[J]. 中国科学院新疆生态与地理研究所,2021,12.
APA	Shan, Qianjuan,Ling, Hongbo,Zhao, Hangzheng,Li, Mengyi,Wang, Zikang,&Zhang, Guangpeng.(2021).Do Extreme Climate Events Cause the Degradation of Malus sieversii Forests in China?.FRONTIERS IN PLANT SCIENCE,12.
MLA	Shan, Qianjuan,et al."Do Extreme Climate Events Cause the Degradation of Malus sieversii Forests in China?".FRONTIERS IN PLANT SCIENCE 12(2021).