干旱区生态环境知识资源中心(Arid): Responses of vegetation phenology to the asymmetric changes of temperature in daytime and night-time in the north of 20°N

Arid

DOI	10.1002/joc.7699
	Responses of vegetation phenology to the asymmetric changes of temperature in daytime and night-time in the north of 20°N
	Hou, Xuehui; Gao, Shuai; Li, Xinhua; Wang, Meng; Zhao, Jia; Sui, Xueyan; Liang, Shouzhen
通讯作者	Hou, XH
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2022
卷号	42 期号:16 页码:8146-8161
英文摘要	Focusing on the regional differences in the asymmetric effects of daytime and night-time warming on plant phenology, (a) the start-of-season (SOS) and end-of-season (EOS) were extracted based on a normalized difference vegetation index (NDVI) dataset for areas north of latitude 20 degrees N during 1982-2015; (b) the partial Pearson correlation coefficient between phenology and temperature was calculated, excluding the effects of precipitation, drought, and evapotranspiration; and (c) the asymmetric effects of daytime and night-time temperatures on phenology were analysed from the perspectives of the entire study area, different climate regimes, and different altitudes. The results show that phenology showed opposing responses to changes in daytime temperature (Td) and night-time temperature (Tn) in spring as well as autumn. However, such asymmetric effects were dependent on the climate. In arid/semi-arid regions, increasing Td induced drought stress by facilitating evaporation from soil, resulting in a delayed SOS and an early EOS, while increasing Tn was beneficial for seed germination and leaf unfolding in the spring. In temperate climate regimes, the responses of phenology to warming in the day and night were more complicated due to different plant species and precipitation. In cold regions, increasing Td led to the advancement of the SOS, while increasing Tn delayed it. In contrast, night-time warming in autumn significantly delayed the EOS and daytime warming advanced the EOS in cold regions. Warming affected the seasonal dynamics of plants in spring and autumn to a greater degree at higher altitudes than at lower altitudes, which is consistent with the results of previous studies. These results provide valuable insights into the patterns of the asymmetric relationship between the effects of changes in daytime and night-time temperatures on plant phenology, over a range of regions and altitudes.
英文关键词	elevation gradient normalized difference vegetation index (NDVI) Northern Hemisphere plant phenology spatial variability warming in daytime and night-time
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000812024000001
WOS关键词	SPRING PHENOLOGY ; CLIMATE-CHANGE ; INTERANNUAL VARIABILITY ; TIBETAN PLATEAU ; GLOBAL PATTERNS ; DAILY MAXIMUM ; INDEX NDVI3G ; ASTER GDEM ; DROUGHT ; CHINA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393131
推荐引用方式 GB/T 7714	Hou, Xuehui,Gao, Shuai,Li, Xinhua,et al. Responses of vegetation phenology to the asymmetric changes of temperature in daytime and night-time in the north of 20°N[J],2022,42(16):8146-8161.
APA	Hou, Xuehui.,Gao, Shuai.,Li, Xinhua.,Wang, Meng.,Zhao, Jia.,...&Liang, Shouzhen.(2022).Responses of vegetation phenology to the asymmetric changes of temperature in daytime and night-time in the north of 20°N.INTERNATIONAL JOURNAL OF CLIMATOLOGY,42(16),8146-8161.
MLA	Hou, Xuehui,et al."Responses of vegetation phenology to the asymmetric changes of temperature in daytime and night-time in the north of 20°N".INTERNATIONAL JOURNAL OF CLIMATOLOGY 42.16(2022):8146-8161.