Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1088/1748-9326/ab724a |
| Below-surface water mediates the response of African forests to reduced rainfall | |
| Madani, Nima1; Kimball, John S.2,3; Parazoo, Nicholas C.1; Ballantyne, Ashley P.3; Tagesson, Torbern4; Jones, Lucas A.2; Reichle, Rolf H.5; Palmer, Paul, I1,6; Velicogna, Isabella1,7; Bloom, A. Anthony1; Saatchi, Sassan1; Liu, Zhihua2,3; Geruo, A.7 | |
| 通讯作者 | Madani, Nima |
| 来源期刊 | ENVIRONMENTAL RESEARCH LETTERS
 |
| ISSN | 1748-9326 |
| 出版年 | 2020 |
| 卷号 | 15期号:3 |
| 英文摘要 | Terrestrial ecosystem gross primary productivity (GPP) is the largest land-atmosphere carbon flux and the primary mechanism of photosynthetic fixation of atmospheric CO2 into plant biomass. Anomalous rainfall events have been shown to have a great impact on the global carbon cycle. However, less is known about the impact of these events on GPP, especially in Africa, where in situ observations are sparse. Here, we use a suite of satellite and other geospatial data to examine the responses of major ecosystems in Africa to anomalous rainfall events from 2003 to 2017. Our results reveal that higher-than-average groundwater storage in tropical ecosystems offsets the rainfall deficit during the dry years. While the inter-annual variations in GPP in semi-arid ecosystems are controlled by near surface soil water, deeper soil moisture and groundwater control the inter-annual variability of the GPP in dense tropical forests. Our study highlights the critical role of groundwater in buffering rainfall shortages and continued availability of near-surface water to plants through dry spells. |
| 英文关键词 | GPP SIF groundwater soil moisture |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA ; Sweden ; Scotland |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000521176500001 |
| WOS关键词 | INDUCED CHLOROPHYLL FLUORESCENCE ; NET PRIMARY PRODUCTION ; CO2 GROWTH-RATE ; SEMIARID ECOSYSTEMS ; SOIL-MOISTURE ; TROPICAL FORESTS ; CARBON DYNAMICS ; EL-NINO ; DROUGHT ; VARIABILITY |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/314452 |
| 作者单位 | 1.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA; 2.Univ Montana, WA Franke Coll Forestry & Conservat, Numer Terradynam Simulat Grp, Missoula, MT 59812 USA; 3.Univ Montana, WA Franke Coll Forestry & Conservat, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA; 4.Lund Univ, Dept Phys Geog & Ecosyst Sci, Solvegatan 12, SE-22362 Lund, Sweden; 5.NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA; 6.Univ Edinburgh, Sch GeoSci, Natl Ctr Earth Observat, Edinburgh EH9 3FF, Midlothian, Scotland; 7.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA |
| 推荐引用方式 GB/T 7714 | Madani, Nima,Kimball, John S.,Parazoo, Nicholas C.,et al. Below-surface water mediates the response of African forests to reduced rainfall[J],2020,15(3). |
| APA | Madani, Nima.,Kimball, John S..,Parazoo, Nicholas C..,Ballantyne, Ashley P..,Tagesson, Torbern.,...&Geruo, A..(2020).Below-surface water mediates the response of African forests to reduced rainfall.ENVIRONMENTAL RESEARCH LETTERS,15(3). |
| MLA | Madani, Nima,et al."Below-surface water mediates the response of African forests to reduced rainfall".ENVIRONMENTAL RESEARCH LETTERS 15.3(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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