干旱区生态环境知识资源中心(Arid): Populus euphratica Phenology and Its Response to Climate Change in the Upper Tarim River Basin, NW China

Arid

DOI	10.3390/f12101315
	Populus euphratica Phenology and Its Response to Climate Change in the Upper Tarim River Basin, NW China
	Li, Hualin; Feng, Jianzhong; Bai, Linyan; Zhang, Jianjun
通讯作者	Bai, LY (corresponding author), Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China.
来源期刊	FORESTS
EISSN	1999-4907
出版年	2021
卷号	12 期号:10
英文摘要	Quantifying the phenological variations of Populus euphratica Olivier (P. euphratica) resulting from climate change is vital for desert ecosystems. There has previously been great progress in the influence of climate change on vegetation phenology, but knowledge of the variations in P. euphratica phenology is lacking in extremely arid areas. In this study, a modified method was proposed to explore P. euphratica phenology and its response to climate change using 18-year Global Land Surface Satellite (GLASS) leaf area index (LAI) time series data (2000-2017) in the upper Tarim River basin. The start of the growing season (SOS), length of the growing season (LOS), and end of the growing season (EOS) were obtained with the dynamic threshold method from the reconstructed growth time series curve by using the Savitzky-Golay filtering method. The grey relational analysis (GRA) method was utilized to analyze the influence between the phenology and the key climatic periods and factors. Importantly, we also revealed the positive and negative effects between interannual climate factors and P. euphratica phenology using the canonical correlation analysis (CCA) method, and the interaction between the SOS in spring and EOS in autumn. The results revealed that trends of P. euphratica phenology (i.e., SOS, EOS, and LOS) were not significant during the period from 2000-2017. The spring temperature and sunshine duration (SD) controlled the SOS, and the EOS was mainly affected by the temperature and SD from June-November, although the impacts of average relative humidity (RH) and precipitation (PR) on the SOS and EOS cannot be overlooked. Global warming may lead to SOS advance and EOS delay, and the increase in SD and PR may lead to earlier SOS and later EOS. Runoff was found to be a more key factor for controlling P. euphratica phenology than PR in this region.
英文关键词	Populus euphratica Tarim River phenology climate change leaf area index (LAI) dynamic threshold method
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:000717111800001
WOS关键词	QINGHAI-TIBETAN PLATEAU ; LAND-SURFACE PHENOLOGY ; VEGETATION GREEN-UP ; SPRING PHENOLOGY ; WATER-USE ; TEMPERATE ECOSYSTEMS ; NORTHERN CHINA ; PRECIPITATION ; DYNAMICS ; FORESTS
WOS类目	Forestry
WOS研究方向	Forestry
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368309
作者单位	[Li, Hualin; Zhang, Jianjun] Beijing Forestry Univ, Coll Soil & Water Conservat, Beijing 100083, Peoples R China; [Li, Hualin; Bai, Linyan] Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China; [Feng, Jianzhong] Chinese Acad Agr Sci, Agr Informat Inst, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Li, Hualin,Feng, Jianzhong,Bai, Linyan,et al. Populus euphratica Phenology and Its Response to Climate Change in the Upper Tarim River Basin, NW China[J]. 北京林业大学,2021,12(10).
APA	Li, Hualin,Feng, Jianzhong,Bai, Linyan,&Zhang, Jianjun.(2021).Populus euphratica Phenology and Its Response to Climate Change in the Upper Tarim River Basin, NW China.FORESTS,12(10).
MLA	Li, Hualin,et al."Populus euphratica Phenology and Its Response to Climate Change in the Upper Tarim River Basin, NW China".FORESTS 12.10(2021).