干旱区生态环境知识资源中心(Arid): Quantitative assessment of the impact of climatic factors on phenological changes in the Qilian Mountains, China

Arid

DOI	10.1016/j.foreco.2021.119594
	Quantitative assessment of the impact of climatic factors on phenological changes in the Qilian Mountains, China
	Sun, Yunfan; Guan, Qingyu; Wang, Qingzheng; Yang, Liqin; Pan, Ninghui; Ma, Yunrui; Luo, Haiping
通讯作者	Guan, QY (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China.
来源期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
EISSN	1872-7042
出版年	2021
卷号	499
英文摘要	Mountain ecosystems are highly susceptible to climate change. The climate tends to be warm and wet in the arid mountains of China because of the intensified water cycle under global warming, and the vegetation is undergoing profound changes. However, how vegetation phenology responds to climate change is not been entirely understood. Using MODIS-NDVI during 2000-2019, we analyzed the spatiotemporal variations in the SOS, EOS, and LOS in the Qilian Mountains (QLMs), China. These parameters were extracted using four methods, and geographic detector model was used to quantify the explanatory power of climatic factors on phenological change. The results showed that the SOS was advanced by an average of 0.26 d/yr, the EOS was delayed by an average of 0.12 d/yr, and the LOS was prolonged by an average of 0.38 d/yr during 2000-2019. The phenological characteristics of different vegetation types differed in their sensitivities to climatic factors, and the sensitivity of grassland to climatic factors was higher than those of other vegetation types. The preseason temperature and sunshine duration contributed more to SOS and EOS changes of forests than that of other vegetation types. Moreover, the SOS was more sensitive to preseason precipitation, and it was the main SOS determinant across grassland and meadows. The EOS was more sensitive to the daily minimum temperature. More importantly, climatic factors did not act independently on vegetation phenological changes. The interactions between preseason precipitation and temperature and between preseason sunshine duration and temperature had significantly affected the changes in the SOS and EOS, respectively. The results of this study highlight the response of different vegetation types to climate change in the arid mountainous areas, which is significant for improving the performance of phenology models.
英文关键词	Spring phenology Autumn phenology Driving factors Geographical detector Qilian Mountains
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000696796200007
WOS关键词	VEGETATION GREEN-UP ; AUTUMN PHENOLOGY ; SPRING PHENOLOGY ; TIBETAN PLATEAU ; LEAF SENESCENCE ; TIME-SERIES ; TEMPERATURE ; DATE ; SENSITIVITY ; RESPONSES
WOS类目	Forestry
WOS研究方向	Forestry
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368247
作者单位	[Sun, Yunfan; Guan, Qingyu; Wang, Qingzheng; Yang, Liqin; Pan, Ninghui; Ma, Yunrui; Luo, Haiping] Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yunfan,Guan, Qingyu,Wang, Qingzheng,et al. Quantitative assessment of the impact of climatic factors on phenological changes in the Qilian Mountains, China[J]. 兰州大学,2021,499.
APA	Sun, Yunfan.,Guan, Qingyu.,Wang, Qingzheng.,Yang, Liqin.,Pan, Ninghui.,...&Luo, Haiping.(2021).Quantitative assessment of the impact of climatic factors on phenological changes in the Qilian Mountains, China.FOREST ECOLOGY AND MANAGEMENT,499.
MLA	Sun, Yunfan,et al."Quantitative assessment of the impact of climatic factors on phenological changes in the Qilian Mountains, China".FOREST ECOLOGY AND MANAGEMENT 499(2021).