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Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands
Ding, JZ (Ding, Jinzhi)1; Yang, T (Yang, Tao)1; Zhao, YT (Zhao, Yutong)1; Liu, D (Liu, Dan)1; Wang, XY (Wang, Xiaoyi)1; Yao, YT (Yao, Yitong)2; Peng, SS (Peng, Shushi)2; Wang, T (Wang, Tao)1,3,4; Piao, SL (Piao, Shilong)1,2,3
Source PublicationGEOPHYSICAL RESEARCH LETTERS
2018-03-28
Volume45Issue:6Pages:2852-2859
DOI10.1002/2017GL076803
Abstract

Pronounced warming occurring on the Tibetan Plateau is expected to stimulate alpine grassland growth but could also increase atmospheric aridity that limits photosynthesis. But there lacks a systematic assessment of the impact of atmospheric aridity on alpine grassland productivity. Here we combine satellite observations, flux-tower-based productivity, and model simulations to quantify the effect of atmospheric aridity on grassland productivity and its temporal change between 1982 and 2011. We found a negative impact of atmospheric vapor pressure deficit on grassland productivity. This negative effect becomes increasingly intensified in terms of the impact severity and extent, suggesting an increasingly important role of atmospheric aridity on productivity. We further demonstrated that this negative effect is mitigated but cannot be overcompensated by the positive effect of rising CO2. Given that vapor pressure deficit is projected to further increase by similar to 10-38% in the future, Tibetan alpine grasslands will face an increasing stress of atmospheric drought. 

Subject Area生态学
WOS IDWOS:000430106000034
Language英语
Indexed BySCIE
KeywordVapor-pressure Deficit Change-type Drought Temperature Sensitivity Vegetation Growth United-states Soil Carbon Co2 Mortality Forest Water
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
Cooperation Status国内
ISSN0094-8276
Department高寒生态重点实验室
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8700
Collection图书馆
Corresponding AuthorDing, JZ (Ding, Jinzhi); Wang, T (Wang, Tao)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China;
2.Peking Univ, Coll Urban & Environm Sci, Sinofrench Inst Earth Syst Sci, Beijing, Peoples R China;
3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
4.Univ Chinese Acad Sci, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Ding, JZ ,Yang, T ,Zhao, YT ,et al. Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(6):2852-2859.
APA Ding, JZ .,Yang, T .,Zhao, YT .,Liu, D .,Wang, XY .,...&Piao, SL .(2018).Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands.GEOPHYSICAL RESEARCH LETTERS,45(6),2852-2859.
MLA Ding, JZ ,et al."Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands".GEOPHYSICAL RESEARCH LETTERS 45.6(2018):2852-2859.
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