Evidence map›Paper›PMID 30804181›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Nitrogen-fixing red alder trees tap rock-derived nutrients.

Steven S Perakis, Julie C Pett-Ridge

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. 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. Depth of nutrient uptake by deep-rooted plants is regulated by water availability.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Fungal systematics and evolution · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. N and P constrain C in ecosystems under climate change: Role of nutrient redistribution, accumulation, and stoichiometry.Ecological applications : a publication of the Ecological Society of America · 2022
    Article
  8. Legume-microbiome interactions unlock mineral nutrients in regrowing tropical forests.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  9. Article
  10. Molybdenum threshold for ecosystem scale alternative vanadium nitrogenase activity in boreal forests.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  11. Effect of alder on soil bacteria offers an alternative explanation to the role played by alder in rock weathering.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  12. Reply to Krishna et al.: Resolving age-related changes in nitrogen fixation and mineral weathering byProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  13. Reply to Lambers et al.: How does nitrogen-fixing red alder eat rocks?Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  14. Do cluster roots of red alder play a role in nutrient acquisition from bedrock?Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Steven S PerakisForest and Rangeland Ecosystem Science Center, US Geological Survey, Corvallis, OR 97331; sperakis@usgs.gov.ORCID 0000-0003-0703-9314
Julie C Pett-RidgeDepartment of Crop and Soil Science, Oregon State University, Corvallis, OR 97331.ORCID 0000-0002-5276-8084

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Symbiotic nitrogen (N)-fixing trees supply significant N inputs to forest ecosystems, leading to increased soil fertility, forest growth, and carbon storage. Rapid growth and stoichiometric constraints of N fixers also create high demands for rock-derived nutrients such as phosphorus (P), while excess fixed N can generate acidity and accelerate leaching of rock-derived nutrients such as calcium (Ca). This ability of N-fixing trees to accelerate cycles of Ca, P, and other rock-derived nutrients has fostered speculation of a direct link between N fixation and mineral weathering in terrestrial ecosystems. However, field evidence that N-fixing trees have enhanced access to rock-derived nutrients is lacking. Here we use strontium (Sr) isotopes as a tracer of nutrient sources in a mixed-species temperate rainforest to show that N-fixing trees access more rock-derived nutrients than nonfixing trees. The N-fixing tree red alder (

Indexed as

Nitrogen FixationAlnusCalciumForestsGeologic SedimentsIsotopesMineralsNitrogenSoilStrontiumTreesCalciumIsotopesMineralsNitrogenSoilStrontiumbiogeochemistryforestmineral weatheringnitrogen fixationstrontium isotopes

Identifiers

PMID30804181
PMCPMC6421423

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.