Increasing importance of precipitation in spring phenology with decreasing latitudes in subtropical forest area in China
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Increasing importance of precipitation in spring phenology with decreasing latitudes in subtropical forest area in China. / Li, Xinxi; Fu, Yongshuo H.; Chen, Shouzhi; Xiao, Jingfeng; Yin, Guodong; Li, Xing; Zhang, Xuan; Geng, Xiaojun; Wu, Zhaofei; Zhou, Xuancheng; Tang, Jing; Hao, Fanghua.
In: Agricultural and Forest Meteorology, Vol. 304-305, 108427, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Increasing importance of precipitation in spring phenology with decreasing latitudes in subtropical forest area in China
AU - Li, Xinxi
AU - Fu, Yongshuo H.
AU - Chen, Shouzhi
AU - Xiao, Jingfeng
AU - Yin, Guodong
AU - Li, Xing
AU - Zhang, Xuan
AU - Geng, Xiaojun
AU - Wu, Zhaofei
AU - Zhou, Xuancheng
AU - Tang, Jing
AU - Hao, Fanghua
N1 - Publisher Copyright: © 2021 Elsevier B.V.
PY - 2021
Y1 - 2021
N2 - Climate warming has significantly advanced plant spring phenology in temperate and boreal biomes in the northern hemisphere. However, the response of subtropical forest phenology to climate change remains largely unclear. This study aimed to determine the spatiotemporal patterns of spring photosynthetic phenology in subtropical forests in China over the period 2002-2017 and explore its underlying mechanism in response to the changes of different climate variables. We applied four methods to extract the start of the photosynthetic period (SOP) from a solar–induced chlorophyll fluorescence (SIF) data set during the period 2002 to 2017, and determined correlations between SOP and environmental factors using partial correlation analyses. Overall, the SOP was advanced by 6.8 days. Furthermore, we found that the SIF-based SOP is highly correlated with the flux data–based photosynthetic onset dates, demonstrating that SIF can be a useful index in characterizing the photosynthetic phenology in subtropical forests. Interestingly, based on partial correlation analysation temperature dominated the SOP in the northern subtropical forest, but the importance of precipitation increased with decreasing latitudes, and the primary climatic control of SOP in southern monsoon evergreen forests is precipitation. These results suggested that the predicted increase in temperature and shift in precipitation regimes under ongoing climate change might potentially largely affect the photosynthetic phenology, and thus affect the carbon and water cycles in subtropical forests.
AB - Climate warming has significantly advanced plant spring phenology in temperate and boreal biomes in the northern hemisphere. However, the response of subtropical forest phenology to climate change remains largely unclear. This study aimed to determine the spatiotemporal patterns of spring photosynthetic phenology in subtropical forests in China over the period 2002-2017 and explore its underlying mechanism in response to the changes of different climate variables. We applied four methods to extract the start of the photosynthetic period (SOP) from a solar–induced chlorophyll fluorescence (SIF) data set during the period 2002 to 2017, and determined correlations between SOP and environmental factors using partial correlation analyses. Overall, the SOP was advanced by 6.8 days. Furthermore, we found that the SIF-based SOP is highly correlated with the flux data–based photosynthetic onset dates, demonstrating that SIF can be a useful index in characterizing the photosynthetic phenology in subtropical forests. Interestingly, based on partial correlation analysation temperature dominated the SOP in the northern subtropical forest, but the importance of precipitation increased with decreasing latitudes, and the primary climatic control of SOP in southern monsoon evergreen forests is precipitation. These results suggested that the predicted increase in temperature and shift in precipitation regimes under ongoing climate change might potentially largely affect the photosynthetic phenology, and thus affect the carbon and water cycles in subtropical forests.
KW - Climate change
KW - Latitudinal shift
KW - Photosynthetic phenology
KW - Precipitation
KW - SIF
KW - Subtropical forest
U2 - 10.1016/j.agrformet.2021.108427
DO - 10.1016/j.agrformet.2021.108427
M3 - Journal article
AN - SCOPUS:85104488778
VL - 304-305
JO - Agricultural and Forest Meteorology
JF - Agricultural and Forest Meteorology
SN - 0168-1923
M1 - 108427
ER -
ID: 262740836