Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands | |
Peng, SS (Peng, Shushi)2; Piao, SL (Piao, Shilong)1,2,3; 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; Wang, T (Wang, Tao)1,3,4 | |
刊名 | GEOPHYSICAL RESEARCH LETTERS |
2018-03-28 | |
卷号 | 45期号:6页码:2852-2859 |
关键词 | Vapor-pressure Deficit Change-type Drought Temperature Sensitivity Vegetation Growth United-states Soil Carbon Co2 Mortality Forest Water |
ISSN号 | 0094-8276 |
DOI | 10.1002/2017GL076803 |
英文摘要 | 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. |
学科主题 | 生态学 |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000430106000034 |
内容类型 | 期刊论文 |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8700] |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Ding, JZ (Ding, Jinzhi); Wang, T (Wang, Tao) |
作者单位 | 1.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. |
推荐引用方式 GB/T 7714 | Peng, SS ,Piao, SL ,Ding, JZ ,et al. Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(6):2852-2859. |
APA | Peng, SS .,Piao, SL .,Ding, JZ .,Yang, T .,Zhao, YT .,...&Wang, T .(2018).Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands.GEOPHYSICAL RESEARCH LETTERS,45(6),2852-2859. |
MLA | Peng, SS ,et al."Increasingly Important Role of Atmospheric Aridity on Tibetan Alpine Grasslands".GEOPHYSICAL RESEARCH LETTERS 45.6(2018):2852-2859. |
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