File:Origins and bioavailability of dissolved organic matter in groundwater.webp
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Origins and bioavailability of dissolved organic matter in groundwater
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[edit]DescriptionOrigins and bioavailability of dissolved organic matter in groundwater.webp |
English: Origins and bioavailability of dissolved organic matter in groundwater Regional Chromatography Model—precipitation and surface water leaches dissolved organic matter (DOM) from vegetation and plant litter and percolates through the soil column to the saturated zone. The concentration, composition, and bioavailability of DOM are altered during transport through the soil column by various physicochemical and biological processes, including sorption, desorption, biodegradation and biosynthesis. Hydrophobic molecules are preferentially partitioned onto soil minerals and have a longer retention time in soils than hydrophilic molecules. The hydrophobicity and retention time of colloids and dissolved molecules in soils are controlled by their size, polarity, charge, and bioavailability. Bioavailable DOM is subjected to microbial decomposition, resulting in a reduction in size and molecular weight. Novel molecules are synthesized by soil microbes, and some of these metabolites enter the DOM reservoir in groundwater |
Date | |
Source | doi:10.1007/s10533-014-0029-4 |
Author | Yuan Shen, Francis H. Chapelle, Eric W. Strom & Ronald Benner |
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current | 21:15, 26 July 2020 | ![]() | 559 × 425 (57 KB) | Epipelagic (talk | contribs) | Uploaded a work by Yuan Shen, Francis H. Chapelle, Eric W. Strom & Ronald Benner from [https://link.springer.com/article/10.1007/s10533-014-0029-4] {{doi|10.1007/s10533-014-0029-4}} with UploadWizard |
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