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Dynamics of solar-induced chlorophyll fluorescence (SIF) and its response to meteorological drought in the Yellow River Basin

文献类型：期刊论文

作者Wu, Hao3; Zhou, Pingping3; Song, Xiaoyan3; Sun, Wenyi2; Li, Yi3; Song, Songbai3; Zhang, Yongqiang1
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2024-06-01
卷号360页码:11
关键词Vegetation dynamics Meteorological drought Causal link Cumulative effect
ISSN号0301-4797
DOI10.1016/j.jenvman.2024.121023
英文摘要Solar-induced chlorophyll fluorescence (SIF) has been used since its discovery to characterize vegetation photosynthesis and is an effective tool for monitoring vegetation dynamics. Its response to meteorological drought enhances our comprehension of the ecological consequences and adaptive mechanisms of plants facing water scarcity, informing more efficient resource management and efforts in mitigating climate change. This study investigates the spatial and temporal patterns of SIF and examines how vegetation SIF in the Yellow River Basin (YRB) responds to meteorological drought. The findings reveal a gradual southeast-to-northwest decline in SIF across the Yellow River Basin, with an overall increase-from 0.1083 W m(-2)mu m(-1)sr(-1) in 2001 to 0.1468 W m(-2)mu m(-1)sr(-1) in 2019. Approximately 96% of the YRB manifests an upward SIF trend, with 75% of these areas reaching statistical significance. The Standardized Precipitation Evapotranspiration Index (SPEI) at a time scale of 4 months (The SPEI-4), based on the Liang-Kleeman information flow method, is identified as the most suitable drought index, adeptly characterizing the causal relationship influencing SIF variations. As drought intensified, the SPEI-4 index markedly deviated from the baseline, resulting in a decrease in SIF values to their lowest value; subsequently, as drought lessened, it gravitated towards the baseline, and SIF values began to gradually increase, eventually recovering to near their annual maximum. The key finding is that the variability of SIF with SPEI is relatively pronounced in the early growing season, with forests demonstrating superior resilience compared to grasslands and croplands. The responsiveness of vegetation SIF to SPEI can facilitate the establishment of effective drought early warning systems and promote the rational planning of water resources, thereby mitigating the impacts of climate change.
WOS关键词VEGETATION ; CHINA ; PROJECTS
资助项目National Natural Science Founda- tion of China[42330506] ; National Natural Science Foundation of China[42177328] ; Fundamental Research Funds for the Central Universities[2023HHZX001] ; West Light Foundation of The Chinese Academy of Sciences[XAB2022YW02]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001265768400001
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构National Natural Science Founda- tion of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; West Light Foundation of The Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/207738]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Song, Xiaoyan
作者单位1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid Semiarid Areas, Minist Educ, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Hao,Zhou, Pingping,Song, Xiaoyan,et al. Dynamics of solar-induced chlorophyll fluorescence (SIF) and its response to meteorological drought in the Yellow River Basin[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2024,360:11.
APA Wu, Hao.,Zhou, Pingping.,Song, Xiaoyan.,Sun, Wenyi.,Li, Yi.,...&Zhang, Yongqiang.(2024).Dynamics of solar-induced chlorophyll fluorescence (SIF) and its response to meteorological drought in the Yellow River Basin.JOURNAL OF ENVIRONMENTAL MANAGEMENT,360,11.
MLA Wu, Hao,et al."Dynamics of solar-induced chlorophyll fluorescence (SIF) and its response to meteorological drought in the Yellow River Basin".JOURNAL OF ENVIRONMENTAL MANAGEMENT 360(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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