Evidence map›Paper›PMID 34930849›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Rapid increases in shrubland and forest intrinsic water-use efficiency during an ongoing megadrought.

Steven A Kannenberg, Avery W Driscoll, Paul Szejner, William R L Anderegg, James R Ehleringer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed.

  1. Article
  2. Rising atmospheric COFrontiers in plant science · 2026
    Article
  3. Article
  4. Article
  5. Climate Gradients Underlie Geographical Variations in iWUE and δPlant-environment interactions (Hoboken, N.J.) · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Ecophysiological responses ofJournal of geophysical research. Biogeosciences · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Aerosol Impacts on Water Relations of Camphor (Frontiers in plant science · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Steven A KannenbergSchool of Biological Sciences, University of Utah, Salt Lake City, UT 84112; s.kannenberg@utah.edu.ORCID 0000-0002-4097-9140
Avery W DriscollSchool of Biological Sciences, University of Utah, Salt Lake City, UT 84112.ORCID 0000-0003-4053-5256
Paul SzejnerInstituto de Geología, Universidad Nacional Autónoma de México, 04510 Mexico City, Mexico.
William R L AndereggSchool of Biological Sciences, University of Utah, Salt Lake City, UT 84112.ORCID 0000-0001-6551-3331
James R EhleringerSchool of Biological Sciences, University of Utah, Salt Lake City, UT 84112.ORCID 0000-0003-2050-3636

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Globally, intrinsic water-use efficiency (iWUE) has risen dramatically over the past century in concert with increases in atmospheric CO

Indexed as

Climate ChangeDroughtsEcosystemForestsWater CycleCarbon DioxideCarbon IsotopesTreesWaterCarbon DioxideCarbon IsotopesWaterclimate changedroughtiWUEstable isotopestree rings

Identifiers

PMID34930849
PMCPMC8719875

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.