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Disentangling the effects of vapor pressure deficit on northern terrestrial vegetation productivity
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- Zhong, Ziqian, 1995 (author)
- Beijing Normal University
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- He, B. (author)
- Beijing Normal University
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- Wang, Y. P. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Liu, H. M. (author)
- Xie, X. M. (author)
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- (creator_code:org_t)
- 2023
- 2023
- English.
- In: Science Advances. - 2375-2548. ; 9:32
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The impact of atmospheric vapor pressure deficit (VPD) on plant photosynthesis has long been acknowledged, but large interactions with air temperature (T) and soil moisture (SM) still hinder a complete understanding of the influence of VPD on vegetation production across various climate zones. Here, we found a diverging response of productivity to VPD in the Northern Hemisphere by excluding interactive effects of VPD with T and SM. The interactions between VPD and T/SM not only offset the potential positive impact of warming on vegetation productivity but also amplifies the negative effect of soil drying. Notably, for high-latitude ecosystems, there occurs a pronounced shift in vegetation productivity's response to VPD during the growing season when VPD surpasses a threshold of 3.5 to 4.0 hectopascals. These results yield previously unknown insights into the role of VPD in terrestrial ecosystems and enhance our comprehension of the terrestrial carbon cycle's response to global warming.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Keyword
- gas-exchange
- atmospheric demand
- water
- transpiration
- temperature
- regression
- satellite
- mortality
- responses
- decline
- Science & Technology - Other Topics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Zhong, Ziqian, 1 ...
- He, B.
- Wang, Y. P.
- Chen, Hans, 1988
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- Fu, Y. H.
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- Chen, Y. N.
- Guo, L. L.
- Deng, Y.
- Huang, L.
- Yuan, W. P.
- Hao, X. M.
- Tang, R.
- Liu, H. M.
- Sun, L. Y.
- Xie, X. M.
- Zhang, Y. F.
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