Evidence map›Paper›PMID 23071734›Full record

ArticlePloS one2012

Tropical Andean forests are highly susceptible to nutrient inputs--rapid effects of experimental N and P addition to an Ecuadorian montane forest.

Jürgen Homeier, Dietrich Hertel, Tessa Camenzind, Nixon L Cumbicus, Mark Maraun, Guntars O Martinson, L Nohemy Poma, Matthias C Rillig, Dorothee Sandmann, Stefan Scheu and 4 more

Abstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
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  4. Article
  5. Fern mycorrhizae do not respond to fertilization in a tropical montane forest.Plant-environment interactions (Hoboken, N.J.) · 2024
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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

14 authors.

Jürgen HomeierAlbrecht von Haller Institute of Plant Sciences, Georg August University Göttingen, Göttingen, Germany. jhomeie@gwdg.de
Dietrich Hertel
Tessa Camenzind
Nixon L Cumbicus
Mark Maraun
Guntars O Martinson
L Nohemy Poma
Matthias C Rillig
Dorothee Sandmann
Stefan Scheu
Edzo Veldkamp
Wolfgang Wilcke
Hans Wullaert
Christoph Leuschner

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tropical regions are facing increasing atmospheric inputs of nutrients, which will have unknown consequences for the structure and functioning of these systems. Here, we show that Neotropical montane rainforests respond rapidly to moderate additions of N (50 kg ha(-1) yr(-1)) and P (10 kg ha(-1) yr(-1)). Monitoring of nutrient fluxes demonstrated that the majority of added nutrients remained in the system, in either soil or vegetation. N and P additions led to not only an increase in foliar N and P concentrations, but also altered soil microbial biomass, standing fine root biomass, stem growth, and litterfall. The different effects suggest that trees are primarily limited by P, whereas some processes-notably aboveground productivity--are limited by both N and P. Highly variable and partly contrasting responses of different tree species suggest marked changes in species composition and diversity of these forests by nutrient inputs in the long term. The unexpectedly fast response of the ecosystem to moderate nutrient additions suggests high vulnerability of tropical montane forests to the expected increase in nutrient inputs.

Indexed as

EcosystemTreesBiomassEcuadorFertilizersNitrogenPhosphorusPlant LeavesPlant RootsSoilTropical ClimateFertilizersNitrogenPhosphorusSoil

Identifiers

PMID23071734
PMCPMC3468540

What OpenQuestion holds

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Registered trials

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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.