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Cumulative and time-lag effects of the main climate factors on natural vegetation across Siberia

文献类型：期刊论文

作者Shi, Shangyu1,2; Wang, Ping1,2; Zhang, Yichi1; Yu, Jingjie1,2
刊名ECOLOGICAL INDICATORS
出版日期2021-12-01
卷号133页码:14
关键词EVI Vegetation greening Climate change Partial correlation analysis Temporal effects
ISSN号1470-160X
DOI10.1016/j.ecolind.2021.108446
通讯作者Wang, Ping(wangping@igsnrr.ac.cn) ; Yu, Jingjie(yujj@igsnrr.ac.cn)
英文摘要The Northern Hemisphere is experiencing amplified warming and greening; however, the responses of greening to warming remain unclear in terms of the cumulative and time-lag effects of climate factors. We chose Siberia, a hotspot in the Northern Hemisphere, as a study area and identified the relationships between the enhanced vegetation index (EVI) and climate factors (e.g., surface temperature, precipitation, and solar radiation) during 2000-2016. In the growing season, the average cumulative duration of the vegetation response to climate factors was 3.6 +/- 2.0 months, and the time-lag period was 1.5 +/- 1.2 months, with the longest duration in forests and the shortest duration in tundra. Solar radiation was the dominant driver of vegetation greening in 56% of the study area, followed by temperature (41%) and precipitation (3%). In addition, the temporal effects of the climate factors were separated through partial correlation analysis; vegetation responded most rapidly to solar radiation variations with a cumulative duration of 2.2 +/- 1.2 months and a time-lag period of 1.8 +/- 0.8 months, followed by temperature (2.3 +/- 1.3 and 1.9 +/- 1.0 months, respectively). Precipitation showed the longest cumulative effect (3.7 +/- 1.5 months) and the shortest time-lag effect (1.2 +/- 1.1 months). Our results suggest that vegetation activity is influenced by both cumulative and time-lag effects. The temporal effects vary among the land cover categories, and complex ecosystems generally correspond to long-term temporal effects, and vice versa. Thus, the conversion of tundra to boreal forest due to warming in Siberia enhances the temporal effects of climate. These temporal effects could be incorporated into Earth system models to improve our understanding and monitoring of terrestrial ecosystems.
WOS关键词TERRESTRIAL VEGETATION ; GLOBAL ASSESSMENT ; CARBON-DIOXIDE ; TUNDRA ECOTONE ; TEMPERATURE ; SENSITIVITY ; TRENDS ; GROWTH ; SPACE ; INDEX
资助项目Science and Technology Basic Resources Investigation Programme of China[2017FY101301] ; National Natural Science Foundation of China[42061134017] ; National Natural Science Foundation of China[41877165] ; Strategic Priority Research Programme of the Chinese Academy of Sciences[XDA2003020101] ; Key Project of the Chinese Academy of Sciences[ZDRW-ZS2017-4]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000760197000004
出版者ELSEVIER
资助机构Science and Technology Basic Resources Investigation Programme of China ; National Natural Science Foundation of China ; Strategic Priority Research Programme of the Chinese Academy of Sciences ; Key Project of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/172345]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Ping; Yu, Jingjie
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Shangyu,Wang, Ping,Zhang, Yichi,et al. Cumulative and time-lag effects of the main climate factors on natural vegetation across Siberia[J]. ECOLOGICAL INDICATORS,2021,133:14.
APA Shi, Shangyu,Wang, Ping,Zhang, Yichi,&Yu, Jingjie.(2021).Cumulative and time-lag effects of the main climate factors on natural vegetation across Siberia.ECOLOGICAL INDICATORS,133,14.
MLA Shi, Shangyu,et al."Cumulative and time-lag effects of the main climate factors on natural vegetation across Siberia".ECOLOGICAL INDICATORS 133(2021):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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