Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-018-0212-7 |
Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale | |
Peters, Wouter1,2; van der Velde, Ivar R.3,4; van Schaik, Erik1; Miller, John B.4; Ciais, Philippe5; Duarte, Henrique F.6; van der Laan-Luijkx, Ingrid T.1; van der Molen, Michiel K.1; Scholze, Marko7; Schaefer, Kevin8; Vidale, Pier Luigi9; Verhoef, Anne10; Warlind, David7; Zhu, Dan5; Tans, Pieter P.4; Vaughn, Bruce11; White, James W. C.11 | |
2018-10-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2018 |
卷号 | 11期号:10页码:744-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; USA; France; Sweden; England |
英文摘要 | Severe droughts in the Northern Hemisphere cause a widespread decline of agricultural yield, the reduction of forest carbon uptake, and increased CO2 growth rates in the atmosphere. Plants respond to droughts by partially closing their stomata to limit their evaporative water loss, at the expense of carbon uptake by photosynthesis. This trade-off maximizes their water-use efficiency (WUE), as measured for many individual plants under laboratory conditions and field experiments. Here we analyse the C-13/C-12 stable isotope ratio in atmospheric CO2 to provide new observational evidence of the impact of droughts on the WUE across areas of millions of square kilometres and spanning one decade of recent climate variability. We find strong and spatially coherent increases in WUE along with widespread reductions of net carbon uptake over the Northern Hemisphere during severe droughts that affected Europe, Russia and the United States in 2001-2011. The impact of those droughts on WUE and carbon uptake by vegetation is substantially larger than simulated by the land-surface schemes of six state-of-the-art climate models. This suggests that drought-induced carbon-climate feedbacks may be too small in these models and improvements to their vegetation dynamics using stable isotope observations can help to improve their drought response. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457246000001 |
WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; DIOXIDE EXCHANGE ; PHOTOSYNTHESIS ; ATMOSPHERE ; REDUCTION ; MODELS ; FLUXES ; LEAF ; PRODUCTIVITY ; GRASSLAND |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34701 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Wageningen Univ, Environm Sci Grp, Wageningen, Netherlands; 2.Univ Groningen, Ctr Isotope Res, Groningen, Netherlands; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.NOAA, Global Monitoring Div, Earth Syst Res Lab, Boulder, CO USA; 5.CEA CNRS UVSQ, IPSL, LSCE, Gif Sur Yvette, France; 6.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT USA; 7.Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden; 8.Univ Colorado, Natl Snow & Ice Data Ctr, Boulder, CO 80309 USA; 9.Univ Reading, Dept Meteorol, Reading, Berks, England; 10.Univ Reading, Dept Geog & Environm Sci, Reading, Berks, England; 11.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Peters, Wouter,van der Velde, Ivar R.,van Schaik, Erik,et al. Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale[J]. NATURE GEOSCIENCE,2018,11(10):744-+. |
APA | Peters, Wouter.,van der Velde, Ivar R..,van Schaik, Erik.,Miller, John B..,Ciais, Philippe.,...&White, James W. C..(2018).Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale.NATURE GEOSCIENCE,11(10),744-+. |
MLA | Peters, Wouter,et al."Increased water-use efficiency and reduced CO2 uptake by plants during droughts at a continental scale".NATURE GEOSCIENCE 11.10(2018):744-+. |
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