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	Satellite-observed solar-induced chlorophyll fluorescence reveals higher sensitivity of alpine ecosystems to snow cover on the Tibetan Plateau
	Qiu, Bo1,2,3; Li, Wenkai3; Wang, Xuegian3; Shang, Lunyu4; Song, Chunqiao5; Guo, Weidong3; Zhang, Yongguang1,2
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2019-06-15
卷号	271页码:126-134
关键词	Solar-induced chlorophyll fluorescence Snow cover Tibetan Plateau Gross primary production Photosynthesis
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2019.02.045
通讯作者	Zhang, Yongguang(yongguang_zhang@nju.edu.cn)
英文摘要	Snow cover, which has been declining over recent decades because of rising temperatures, impacts alpine vegetation in various ways on the Tibetan Plateau (TP). However, it is still unclear how the alpine ecosystem responses to the rapid changes of snow cover on the TP. Here, we use the novel spaceborne measurements of solar-induced fluorescence (SIF) from the GOME-2 instrument, a direct proxy of photosynthetic activity, along with traditional vegetation indices (VIs) to study the responses of an alpine ecosystem to changes in snow cover over the TP. We find that seasonal dynamics of SIF are more consistent with alpine vegetation gross primary productivity (GPP) than those of enhanced vegetation index (EVI), suggesting the decoupling of photosynthesis and changes in greenness-based VIs. The snow cover explains most of the interannual variability of SIF, with secondary effects due to summer air temperature, while summer precipitation has little impact on alpine vegetation photosynthesis, indicating the critical role of snow cover in regulating alpine vegetation growth on the TP. This study suggests that the alpine vegetation photosynthesis on the TP is highly dependent on the snow cover at the start of the growing season and air temperature at the end of the growing season. Our results also demonstrate that the on-going satellite measurements of SIF shed new light on the understanding of future vegetation growth and vegetation-atmosphere interactions under a changing climate on the TP.
收录类别	SCI
WOS关键词	LIGHT-USE EFFICIENCY ; TERRESTRIAL ECOSYSTEM ; CLIMATE-CHANGE ; VEGETATION ; PHOTOSYNTHESIS ; PHENOLOGY ; ENERGY ; PRECIPITATION ; RESOLUTION ; RESPONSES
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000468709200013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555441
专题	寒区旱区环境与工程研究所
通讯作者	Zhang, Yongguang
作者单位	1.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China 2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Jiangsu, Peoples R China 3.Nanjing Univ, Sch Atmospher Sci, Inst Climate & Global Change Res, CMA NJU Joint Lab Climate Predict Studies, Nanjing, Jiangsu, Peoples R China 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou, Gansu, Peoples R China 5.Chinese Acad Sci, Inst Geog & Limnol, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Bo,Li, Wenkai,Wang, Xuegian,et al. Satellite-observed solar-induced chlorophyll fluorescence reveals higher sensitivity of alpine ecosystems to snow cover on the Tibetan Plateau[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,271:126-134.
APA	Qiu, Bo.,Li, Wenkai.,Wang, Xuegian.,Shang, Lunyu.,Song, Chunqiao.,...&Zhang, Yongguang.(2019).Satellite-observed solar-induced chlorophyll fluorescence reveals higher sensitivity of alpine ecosystems to snow cover on the Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,271,126-134.
MLA	Qiu, Bo,et al."Satellite-observed solar-induced chlorophyll fluorescence reveals higher sensitivity of alpine ecosystems to snow cover on the Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 271(2019):126-134.

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