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Evidence for satellite observed changes in the relative influence of climate indicators on autumn phenology over the Northern Hemisphere
Yuan, Huanhuan1,2; Wu, Chaoyang1,2; Gu, Chengyan3; Wang, Xiaoyue1
2020-04-01
Source PublicationGLOBAL AND PLANETARY CHANGE
ISSN0921-8181
Volume187Pages:12
Corresponding AuthorWu, Chaoyang(wucy@igsnrr.ac.cn)
AbstractRecent climate changes have elicited diverse phenological shifts in the ecosystems of the Northern Hemisphere (NH), with changes in the end growth of season (EOS) varying considerably with time. Due to the anthropogenic forcing (e.g. anthropogenic radiative forcing, a al.), both the climate conditions and EOS greatly changed since 2000, but the relationship between the two remains unclear. To better understand the responses of EOS to climate change with time, we used Global Inventory Modeling and Mapping Studies (GIMMS) derived normalized difference vegetation index (NDVI) and temperature, precipitation, and cloud cover during 1982-2000 and 2001-2015 separately, aiming to identify and quantify the spatiotemporal distributions of drivers of EOS across different biomes over the NH ( > 30 degrees). Considering separately these two distinct periods, we found that beginning in the 21st century both the proportion of positive significant pixels (increased by 9.2%) as well as the sensitivity (1.5 +/- 4.3 day degrees C -1 vs. 2.7 +/- 7.9 day degrees C-1) of the temperature vs. EOS relationship had increased. Precipitation affected EOS over a slightly increase area during these two periods, but the sensitivity decreased. Conversely, we found that the sensitivity of EOS to light availability increased for most of biomes, whereas the areas influenced increased by 7.9%. With respect to the sign of relationships between EOS and its drivers, we found that for high latitude regions (i.e., boreal forests and tundra), precipitation advanced EOS during 2001-2015 but delayed EOS during 1982-2000. Although precipitation has significant correlations for a larger area than temperature, its sensitivity was lower. Our results imply that the relative magnitude and sign of drivers of EOS has changed substantially over time and space. Improved representation of these dynamic changes will advance understanding of future climate change on plant phenology by ecosystem models.
KeywordNorthern hemisphere Climate change The end of growing season Biome type Spatial and temporal changes
DOI10.1016/j.gloplacha.2020.103131
WOS KeywordVEGETATION GREEN-UP ; SPRING PHENOLOGY ; FOREST PHENOLOGY ; LEAF SENESCENCE ; PLANT PHENOLOGY ; TIBETAN PLATEAU ; GROWING-SEASON ; TEMPERATE ; RESPONSES ; CHINA
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA19040103] ; National Natural Science Foundation of China[41871255] ; key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC011]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; key Research Program of Frontier Sciences, CAS
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000526518800005
PublisherELSEVIER
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/133780
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWu, Chaoyang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Forestry & Grassland Adm, Planning & Design Inst Forestry Prod Ind, 130 Chaoyangmennei St, Beijing 100010, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Huanhuan,Wu, Chaoyang,Gu, Chengyan,et al. Evidence for satellite observed changes in the relative influence of climate indicators on autumn phenology over the Northern Hemisphere[J]. GLOBAL AND PLANETARY CHANGE,2020,187:12.
APA Yuan, Huanhuan,Wu, Chaoyang,Gu, Chengyan,&Wang, Xiaoyue.(2020).Evidence for satellite observed changes in the relative influence of climate indicators on autumn phenology over the Northern Hemisphere.GLOBAL AND PLANETARY CHANGE,187,12.
MLA Yuan, Huanhuan,et al."Evidence for satellite observed changes in the relative influence of climate indicators on autumn phenology over the Northern Hemisphere".GLOBAL AND PLANETARY CHANGE 187(2020):12.
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