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Declined trend in herbaceous plant green-up dates on the Qinghai-Tibetan Plateau caused by spring warming slowdown

文献类型：期刊论文

作者Sun, Qingling2,3,4; Li, Baolin4,5; Jiang, Yuhao4,5; Chen, Xiuzhi2; Zhou, Guoyi1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2021-06-10
卷号772页码:10
ISSN号0048-9697
关键词Spring phonology GUD Temporal change trend Climate warming Plant functional group Ground observation
DOI10.1016/j.scitotenv.2021.145039
通讯作者Li, Baolin(libl@lreis.ac.cn) ; Zhou, Guoyi(gyzhou@nuist.edu.cn)
英文摘要There has been much debate on the temporal change trend and existence of a turning point in spring green-up date (GUD) of plants on the Qinghai-Tibetan Plateau (QTP). Most previous studies on the QTP used remote sensing data, which have large uncertainties. In this study, using a large amount of long-term ground observation data at 27 phenological stations across the QTP (1694 GUD records), we showed that on the whole, QTP herbaceous plant GUD insignificantly advanced during 1982-2017. Although the direction of the GUD trend did not change from 1982 to 2017, the magnitude of the advancing trend greatly weakened after 1999. According to our estimated results from 28 paired GUD time series, the overall GUD trend shifted from -2.70 clays/decade during 1982-1999 to -0.56 days/decade during 2000-2017. This finding contrasts with the conclusions of previous satellite-based studies, which either reported a continuous significant advancement of GUD or a turning point in the mid-to-late 1990s. Through partial correlation analysis and partial least squares regression, we found that winter and spring air temperatures were the primary climatic factors that influenced the temporal change in GUD, and both had negative effects on GUD. The decreased GUD trend was mainly attributable to the warming slowdown in spring. On average, the spring warming rate decreased by 52.43% after 1999, whereas the winter warming rate displayed no obvious change. This study also found that the GUD of (orbs showed stronger sensitivity to air temperature change than that of sedges and grasses. This indicates that (orbs are more competitive in adaptation to climate warming, which might shift plant community structure and affect ecosystem service function. Moreover, the declined advancement in GUD implies that the spring phenologically driven increase in carbon uptake may have also slowed in the past two decades. (C) 2021 Elsevier B.V. All rights reserved.
资助项目National Key Research and Development Plan of China[2016YFC0500205] ; Innovative Talents Recruitment Programof Chinese Academy of Sciences[Y621231001] ; National Natural Science Foundation of China[NSFC42071031] ; China Postdoctoral Science Foundation[2019M653109] ; State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000628753700055
资助机构National Key Research and Development Plan of China ; Innovative Talents Recruitment Programof Chinese Academy of Sciences ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/162032]  
专题中国科学院地理科学与资源研究所
通讯作者Li, Baolin; Zhou, Guoyi
作者单位1.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Inst Ecol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Peoples R China
2.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China
3.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Qingling,Li, Baolin,Jiang, Yuhao,et al. Declined trend in herbaceous plant green-up dates on the Qinghai-Tibetan Plateau caused by spring warming slowdown[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,772:10.
APA Sun, Qingling,Li, Baolin,Jiang, Yuhao,Chen, Xiuzhi,&Zhou, Guoyi.(2021).Declined trend in herbaceous plant green-up dates on the Qinghai-Tibetan Plateau caused by spring warming slowdown.SCIENCE OF THE TOTAL ENVIRONMENT,772,10.
MLA Sun, Qingling,et al."Declined trend in herbaceous plant green-up dates on the Qinghai-Tibetan Plateau caused by spring warming slowdown".SCIENCE OF THE TOTAL ENVIRONMENT 772(2021):10.

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来源：地理科学与资源研究所

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