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Below-surface water...
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Madani, NimaCalifornia Institute of Technology
(author)
Below-surface water mediates the response of African forests to reduced rainfall
- Article/chapterEnglish2020
Publisher, publication year, extent ...
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2020-03-06
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IOP Publishing,2020
Numbers
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LIBRIS-ID:oai:lup.lub.lu.se:86ae47a9-ed24-49ca-b61f-719422c313ce
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https://lup.lub.lu.se/record/86ae47a9-ed24-49ca-b61f-719422c313ceURI
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https://doi.org/10.1088/1748-9326/ab724aDOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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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.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Kimball, John S.University of Montana
(author)
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Parazoo, Nicholas C.California Institute of Technology
(author)
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Ballantyne, Ashley P.University of Montana
(author)
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Tagesson, TorbernLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science(Swepub:lu)to5874ta
(author)
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Jones, Lucas A.University of Montana
(author)
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Reichle, Rolf H.NASA Goddard Space Flight Center
(author)
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Palmer, Paul I.California Institute of Technology,University of Edinburgh
(author)
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Velicogna, IsabellaUniversity of California, Irvine,California Institute of Technology
(author)
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Bloom, A. AnthonyCalifornia Institute of Technology
(author)
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Saatchi, SassanCalifornia Institute of Technology
(author)
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Liu, ZhihuaUniversity of Montana
(author)
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Geruo, A.University of California, Irvine
(author)
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California Institute of TechnologyUniversity of Montana
(creator_code:org_t)
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In:Environmental Research Letters: IOP Publishing15:31748-93181748-9326
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Madani, Nima
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Kimball, John S.
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Parazoo, Nichola ...
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Ballantyne, Ashl ...
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Tagesson, Torber ...
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Jones, Lucas A.
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Reichle, Rolf H.
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Palmer, Paul I.
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Velicogna, Isabe ...
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Bloom, A. Anthon ...
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Saatchi, Sassan
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Liu, Zhihua
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Geruo, A.
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- About the subject
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- NATURAL SCIENCES
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AGRICULTURAL SCI ...
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Lund University