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Cited by 445

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Vegetation Greening and Climate Change Promote Multidecadal Rises of Global Land Evapotranspiration

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Zhang, Ke, Kimball, John S., Nemani, Ramakrishna R., Running, Steven W., Hong, Yang, Gourley, Jonathan J., Yu, Zhongbo·2015·Scientific Reports

Abstract

Recent studies showed that anomalous dry conditions and limited moisture supply roughly between 1998 and 2008, especially in the Southern Hemisphere, led to reduced vegetation productivity and ceased growth in land evapotranspiration (ET). However, natural variability of Earth’s climate system can degrade capabilities for identifying climate trends. Here we produced a long-term (1982–2013) remote sensing based land ET record and investigated multidecadal changes in global ET and underlying causes. The ET record shows a significant upward global trend of 0.88 mm yr−2 (P < 0.001) over the 32-year period, mainly driven by vegetation greening (0.018% per year; P < 0.001) and rising atmosphere moisture demand (0.75 mm yr−2; P = 0.016). Our results indicate that reduced ET growth between 1998 and 2008 was an episodic phenomenon, with subsequent recovery of the ET growth rate after 2008. Terrestrial precipitation also shows a positive trend of 0.66 mm yr−2 (P = 0.08) over the same period consistent with expected water cycle intensification, but this trend is lower than coincident increases in evaporative demand and ET, implying a possibility of cumulative water supply constraint to ET. Continuation of these trends will likely exacerbate regional drought-induced disturbances, especially during regional dry climate phases associated with strong El Niño events.

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Metadata

Authors
Zhang, K., Kimball, J. S., Nemani, R. R., Running, S. W., Hong, Y., Gourley, J. J., & Yu, Z.
Venue
Scientific Reports
Published
2015-10-30
Volume
5
Issue
1
Pages
15956-15956
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2297128263
Cited by
445
References
44
FWCI
21.23
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Vegetation Greening and Climate Change Promote Multidecadal Rises of Global Land Evapotranspiration. https://app.cochat.ai/papers/10.1038/srep15956
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Zhang, K., Kimball, J. S., Nemani, R. R., Running, S. W., Hong, Y., Gourley, J. J., & Yu, Z. (2015). Vegetation Greening and Climate Change Promote Multidecadal Rises of Global Land Evapotranspiration. Scientific Reports. https://doi.org/10.1038/srep15956

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