ArticlePeerJ2026
Soil physicochemical gradient from headwaters to flooded riparian zones in the Falsino River, Eastern Amazonia.
Article in PeerJ, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigates the edaphic-hydrological gradients of riparian zones in the Falsino River basin, Eastern Amazon. We defined 21 sampling units based on water body order (2nd to 4th) to capture edaphic and hydrological variation. Maximum river level values (MRL) were represented using limnimetric rulers as proxy of flood pulse intensity, and physicochemical analysis was performed on 378 soil samples. The topographic measurements by Global Positioning System (GPS) and Shuttle Radar Topography Mission (SRTM) quantified basin levels and the results were compared. Results reveal a clear spatial pattern, with MRL increasing with tributary order and decreasing elevation. Flood pulse intensity strongly influenced soil texture and acidity, while variables such as organic matter and phosphorus were weakly associated. The inverse relationship between elevation and MRL highlights the topographic control on hydrological dynamics, although elevation alone did not explain most soil variations. Both GPS and SRTM showed strong agreement, validating their use in low-relief Amazonian landscapes. Sample plot delimitation along the basin's longitudinal profile facilitated the evaluation of abiotic attribute relationships. This research provides novel insights into how hydro-topographic interactions shape riparian soil properties, offering a practical framework for hydropedological assessments in remote tropical basins.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.