2026-10-06T10:45:11Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33769963 2026-09-25T17:50:38Z category_25774 category_25888 item_type_3 month_year_09_2026

Data: <b>Human land modification shifts riverine alkalinity from silicate to carbonate sources across the contiguous United States</b> Xiying Sun (24910684) Inorganic geochemistry Surface water hydrology Rock weathering riverine alkalinity export carbon dioxide removal <p dir="ltr">Chemical weathering of continental rocks transfers atmospheric carbon dioxide into rivers, but its effects on the carbon cycle depend on whether weathering involves silicate or carbonate minerals. Silicate weathering provides a long-term carbon sink, whereas carbonate weathering is approximately carbon neutral over geologic timescales. Here, we combine an inverse river-chemistry model with interpretable machine learning to map alkalinity fluxes from silicate and carbonate weathering across 1,084 monitoring sites in the contiguous United States.</p> 2026-09-25T17:50:38Z Dataset Dataset 10.6084/m9.figshare.33769963.v1 https://figshare.com/articles/dataset/Data_b_Human_land_modification_shifts_riverine_alkalinity_from_silicate_to_carbonate_sources_across_the_contiguous_United_States_b_/33769963 CC BY 4.0