| Higher temperature variability reduces temperature sensitivity of vegetation growth in Northern Hemisphere | |
| Wu, XC (Wu, Xiuchen)1,2; Liu, HY (Liu, Hongyan)3; Li, XY (Li, Xiaoyan)1,2; Piao, SL (Piao, Shilong)3,4; Ciais, P (Ciais, Philippe)5; Guo, WC (Guo, Weichao)3; Yin, Y (Yin, Yi)5; Poulter, B (Poulter, Ben)6,7; Peng, CH (Peng, Changhui)8; Viovy, N (Viovy, Nicolas)5; Vuichard, N (Vuichard, Nicolas)5; Wang, P (Wang, Pei)1,2; Huang, YM (Huang, Yongmei)1,2; Wu, XC; Li, XY | |
| Source Publication | GEOPHYSICAL RESEARCH LETTERS
 |
| 2017 | |
| Volume | 44Issue:12Pages:6173-6181 |
| DOI | 10.1002/2017GL073285 |
| Abstract | Interannual air temperature variability has changed over some regions in Northern Hemisphere (NH), accompanying with climate warming. However, whether and to what extent it regulates the interannual sensitivity of vegetation growth to temperature variability (i.e., interannual temperature sensitivity)-one central issue in understanding and predicting the responses of vegetation growth to changing climate-still remains poorly quantified and understood. Here we quantify the relationships between the interannual temperature sensitivity of mean growing-season (April-October) normalized difference vegetation index (NDVI) and ecosystem model simulations of gross primary productivity (GPP), and variability in mean growing-season temperature for forest, shrub, and grass over NH. We find that higher interannual variability in mean growing-season temperature leads to consistent decrease in interannual temperature sensitivity of mean growing-season NDVI among all vegetation types but not in model simulations of GPP. Drier condition associates with similar to 130 +/- 150% further decrease in interannual temperature sensitivity of mean growing-season NDVI by temperature variability in forest and shrub. These results illustrate that varying temperature variability can significantly regulate the interannual temperature sensitivity of vegetation growth over NH, interacted with drought variability and nonlinear responses of photosynthesis to temperature. Our findings call for an improved characterization of the nonlinear effects of temperature variability on vegetation growth within global ecosystem models. |
| Subject Area | 普通生物学 |
| WOS ID | WOS:000405854200035 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Climate-change Carbon-cycle Drought Summer Productivity Ecosystems Latitudes Reduction Forests Adaptation |
| WOS Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary |
| Cooperation Status | 国际 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/8051 |
| Collection | 图书馆 |
| Corresponding Author | Wu, XC; Li, XY |
| Affiliation | 1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China. 2.Beijing Normal Univ, Sch Nat Resources, Fac Geog Sci, Beijing, Peoples R China. 3.Peking Univ, Coll Urban & Environm Sci, Beijing, Peoples R China. 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China. 5.CEA CNRS UVSQ, UMR8212, Lab Sci Climat & Environm, Gif Sur Yvette, France. 6.Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA. 7.Montana State Univ, Inst Ecosyst, Bozeman, MT 59717 USA. 8.Univ Quebec Montreal, Inst Environm Sci, Montreal, PQ, Canada. |
| Recommended Citation GB/T 7714 | Wu, XC ,Liu, HY ,Li, XY ,et al. Higher temperature variability reduces temperature sensitivity of vegetation growth in Northern Hemisphere[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12):6173-6181. |
| APA | Wu, XC .,Liu, HY .,Li, XY .,Piao, SL .,Ciais, P .,...&Li, XY.(2017).Higher temperature variability reduces temperature sensitivity of vegetation growth in Northern Hemisphere.GEOPHYSICAL RESEARCH LETTERS,44(12),6173-6181. |
| MLA | Wu, XC ,et al."Higher temperature variability reduces temperature sensitivity of vegetation growth in Northern Hemisphere".GEOPHYSICAL RESEARCH LETTERS 44.12(2017):6173-6181. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.44(12) 6173-6181 2（1261KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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