ArticlePeerJ2026
Deep arsenic mobilization in karst soils: effects of pedogenesis and grazing.
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.
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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.
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Authors and funding
3 authors.
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Abstract
Arsenic (As) contamination poses substantial ecological and human health concerns in karst regions due to high geochemical background levels and enhanced mobility associated with carbonate weathering and thin soil cover. To investigate the vertical distribution, sources, and environmental risks of soil As under different anthropogenic land uses, we analyzed soil profiles from three representative ecosystems-secondary forest, abandoned cropland, and grazing shrubland-in a typical karst area of Southwest China. The As contents were identified between secondary forest (19.00 ∼ 41.17 mg/kg), abandoned cropland (22.55 ∼ 34.47 mg/kg), and shrubland (14.19 ∼ 34.46 mg/kg), with no significant differences, indicating a predominantly geogenic origin from carbonate bedrock weathering. Long-term cultivation homogenized surface soil As through plowing and crop uptake, whereas grazing introduced additional organic-bound As
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