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Mismatch in elevational shifts between satellite observed vegetation greenness and temperature isolines during 2000-2016 on the Tibetan Plateau
An, S (An, Shuai)1; Zhu, XL (Zhu, Xiaolin)2; Shen, MG (Shen, Miaogen)3; Wang, YF (Wang, Yafeng)3; Cao, RY (Cao, Ruyin)4; Chen, XH (Chen, Xuehong)5; Yang, W (Yang, Wei)6; Chen, J (Chen, Jin)5; Tang, YH (Tang, Yanhong)7,8
Source PublicationGLOBAL CHANGE BIOLOGY
2018-11-01
Volume24Issue:11Pages:5411-5425
DOI10.1111/gcb.14432
Abstract

Climate warming on the Tibetan Plateau tends to induce an uphill shift of temperature isolines. Observations and process-based models have both shown that climate warming has resulted in an increase in vegetation greenness on the Tibetan Plateau in recent decades. However, it is unclear whether the uphill shift of temperature isolines has caused greenness isolines to shift upward and whether the two shifts match each other. Our analysis of satellite observed vegetation greenness during the growing season (May-Sep) and gridded climate data for 2000-2016 documented a substantial mismatch between the elevational shifts of greenness and temperature isolines. This mismatch is probably associated with a lagging response of greenness to temperature change and with the elevational gradient of greenness. The lagging response of greenness may be associated with water limitation, resources availability, and acclimation. This lag may weaken carbon sequestration by Tibetan ecosystems, given that greenness is closely related to primary carbon uptake and ecosystem respiration increases exponentially with temperature. We also found that differences in terrain slope angle accounted for large spatial variations in the elevational gradient of greenness and thus the velocity of elevational shifts of greenness isolines and the sensitivity of elevational shifts of greenness isolines to temperature, highlighting the role of terrain effects on the elevational shifts of greenness isolines. The mismatches and the terrain effect found in this study suggest that there is potentially large micro-topographical difference in response and acclimation/adaptation of greenness to temperature changes in plants. More widespread in situ measurements and fine-resolution remote sensing observations and fine-gridded climate data are required to attribute the mismatch to specific environmental drivers and ecological processes such as vertical changes in community structure, plant physiology, and distribution of species.

Subject Area生态学
WOS IDWOS:000447760300032
Language英语
Indexed BySCIE
KeywordNorthern High-latitudes Climate-change Altitudinal Gradient Alpine Grasslands Mountain Plants Carbon Balance Source Region Precipitation Growth Productivity
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Ecology ; Environmental Sciences
Cooperation Status国际
ISSN1354-1013
Department高寒生态重点实验室
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8515
Collection图书馆
Corresponding AuthorShen, MG (Shen, Miaogen); Wang, YF (Wang, Yafeng)
Affiliation1.Beijing Union Univ, Coll Appl Arts & Sci, Beijing, Peoples R China;
2.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Kowloon, Hong Kong, Peoples R China;
3.Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, CAS Ctr Excellence Tibetan Plateau Earth Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China;
4.Univ Elect Sci & Technol China, Sch Resources & Environm, Chengdu, Sichuan, Peoples R China;
5.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Fac Geog Sci, Coll Remote Sensing Sci & Engn, Beijing, Peoples R China;
6.Chiba Univ, Ctr Environm Remote Sensing, Chiba, Chiba, Japan;
7.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing, Peoples R China;
8.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
An, S ,Zhu, XL ,Shen, MG ,et al. Mismatch in elevational shifts between satellite observed vegetation greenness and temperature isolines during 2000-2016 on the Tibetan Plateau[J]. GLOBAL CHANGE BIOLOGY,2018,24(11):5411-5425.
APA An, S .,Zhu, XL .,Shen, MG .,Wang, YF .,Cao, RY .,...&Tang, YH .(2018).Mismatch in elevational shifts between satellite observed vegetation greenness and temperature isolines during 2000-2016 on the Tibetan Plateau.GLOBAL CHANGE BIOLOGY,24(11),5411-5425.
MLA An, S ,et al."Mismatch in elevational shifts between satellite observed vegetation greenness and temperature isolines during 2000-2016 on the Tibetan Plateau".GLOBAL CHANGE BIOLOGY 24.11(2018):5411-5425.
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