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The application of biochar to soil has been proposed as a long-term sink for atmospheric carbon dioxide in terrestrial ecosystems while providing improved soil fertility and increased crop production. Because biochar differs from the widely documented activated carbon, initial characterization information on effects of formation conditions on physical and chemical properties of biochar is important...
Most models of soil humic substances include a substantial component of aromatic C either as the backbone of humic heteropolymers or as a significant component of supramolecular aggregates of degraded biopolymers. We physically separated coarse (0.2–2.0 μm e.s.d.), medium (0.02–0.2 μm e.s.d.), and fine (>0.02 μm e.s.d.) clay subfractions from three Midwestern soils and characterized the organic...
The chemical relationships among particulate and colloidal organicmaterial and dissolved fulvic acid were examined in an alpine andsubalpine lake and two streams in Loch Vale Watershed, Rocky MountainNational Park. The alpine lake, Sky Pond, had the lowest dissolved organiccarbon (DOC) (0.37 mgC/L), the highest particulate carbon (POC) (0.13mgC/L), and high algal biomass. The watershed of Sky Pond...
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