Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0318-6 |
Drought impacts on terrestrial primary production underestimated by satellite monitoring | |
Stocker, Benjamin D.1; Zscheischler, Jakob2,7; Keenan, Trevor F.3,4; Prentice, I. Colin5; Seneviratne, Sonia I.2; Penuelas, Josep1,6 | |
2019-04-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:4页码:264-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Switzerland; USA; England |
英文摘要 | Satellite retrievals of information about the Earth's surface are widely used to monitor global terrestrial photosynthesis and primary production and to examine the ecological impacts of droughts. Methods for estimating photosynthesis from space commonly combine information on vegetation greenness, incoming radiation, temperature and atmospheric demand for water (vapour-pressure deficit), but do not account for the direct effects of low soil moisture. They instead rely on vapour-pressure deficit as a proxy for dryness, despite widespread evidence that soil moisture deficits have a direct impact on vegetation, independent of vapour-pressure deficit. Here, we use a globally distributed measurement network to assess the effect of soil moisture on photosynthesis, and identify a common bias in an ensemble of satellite-based estimates of photosynthesis that is governed by the magnitude of soil moisture effects on photosynthetic light-use efficiency. We develop methods to account for the influence of soil moisture and estimate that soil moisture effects reduce global annual photosynthesis by similar to 15%, increase interannual variability by more than 100% across 25% of the global vegetated land surface, and amplify the impacts of extreme events on primary production. These results demonstrate the importance of soil moisture effects for monitoring carbon-cycle variability and drought impacts on vegetation productivity from space. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462621700011 |
WOS关键词 | GROSS PRIMARY PRODUCTION ; NET PRIMARY PRODUCTION ; ATMOSPHERIC DEMAND ; USE EFFICIENCY ; CLIMATE-CHANGE ; CARBON UPTAKE ; WATER-STRESS ; PHOTOSYNTHESIS ; RADIATION ; FOREST |
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/182197 |
专题 | 地球科学 气候变化 |
作者单位 | 1.CREAF, Global Ecol Unit, Catalonia, Cerdanyola Del, Spain; 2.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 3.Lawrence Berkeley Natl Lab, Earth & Environm Sci Area, Berkeley, CA USA; 4.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA; 5.Imperial Coll London, Dept Life Sci, Biosphere & Climate Impacts, Ascot, Berks, England; 6.UAB, CSIC, Global Ecol Unit, CREAF, Bellaterra, Spain; 7.Univ Bern, Climate & Environm Phys, Bern, Switzerland |
推荐引用方式 GB/T 7714 | Stocker, Benjamin D.,Zscheischler, Jakob,Keenan, Trevor F.,et al. Drought impacts on terrestrial primary production underestimated by satellite monitoring[J]. NATURE GEOSCIENCE,2019,12(4):264-+. |
APA | Stocker, Benjamin D.,Zscheischler, Jakob,Keenan, Trevor F.,Prentice, I. Colin,Seneviratne, Sonia I.,&Penuelas, Josep.(2019).Drought impacts on terrestrial primary production underestimated by satellite monitoring.NATURE GEOSCIENCE,12(4),264-+. |
MLA | Stocker, Benjamin D.,et al."Drought impacts on terrestrial primary production underestimated by satellite monitoring".NATURE GEOSCIENCE 12.4(2019):264-+. |
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