J
James R. Ehleringer
Researcher at University of Utah
Publications - 479
Citations - 60768
James R. Ehleringer is an academic researcher from University of Utah. The author has contributed to research in topics: Stable isotope ratio & Transpiration. The author has an hindex of 116, co-authored 473 publications receiving 56643 citations. Previous affiliations of James R. Ehleringer include University of California, Davis & University of California, Los Angeles.
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Journal ArticleDOI
Carbon Isotope Discrimination and Photosynthesis
TL;DR: In this article, the physical and enzymatic bases of carbone isotope discrimination during photosynthesis were discussed, noting how knowledge of discrimination can be used to provide additional insight into photosynthetic metabolism and the environmental influences on that process.
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A global analysis of root distributions for terrestrial biomes
Robert B. Jackson,Josep G. Canadell,James R. Ehleringer,Harold A. Mooney,Osvaldo E. Sala,Ernst Detlef Schulze +5 more
TL;DR: Rooting patterns for terrestrial biomes are analyzed and distributions for various plant functional groups are compared and the merits and possible shortcomings of the analysis are discussed in the context of root biomass and root functioning.
Journal ArticleDOI
Global vegetation change through the Miocene/Pliocene boundary
Thure E. Cerling,John Harris,Bruce J. MacFadden,Meave G. Leakey,Jay Quade,Véra Eisenmann,James R. Ehleringer +6 more
TL;DR: For example, this paper found that between 8 and 6 million years ago, there was a global increase in the biomass of plants using C4 photosynthesis as indicated by changes in the carbon isotope ratios of fossil tooth enamel in Asia, Africa, North America and South America.
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Maximum rooting depth of vegetation types at the global scale.
Josep G. Canadell,Robert B. Jackson,James R. Ehleringer,Harold A. Mooney,Osvaldo E. Sala,Ernst Detlef Schulze +5 more
TL;DR: Deep root habits are quite common in woody and herbaceous species across most of the terrestrial biomes, far deeper than the traditional view has held up to now, and has important implications for a better understanding of ecosystem function and its application in developing ecosystem models.
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C 4 photosynthesis, atmospheric CO 2 , and climate
TL;DR: It is suggested that C4 dicots may not have been selected until CO2 concentrations reached their lowest levels during glacial maxima in the Quaternary, and it is proposed that leaf venation patterns play a role in increasing the light-use efficiency of most C4 monocots.