(Table 1) Cation exchange capacity and other characteristics of soils common in Lower Saxony, Germany
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1982
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| _version_ | 1867171788822151168 |
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| author | Holthusen, Henning |
| author_facet | Holthusen, Henning |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The chemical and biochemical processes associated with the filtration of rainwater through soils, a step in groundwater recharge, were investigated. Under simulated climatic conditions in the laboratory, undisturbed soil columns of partly loamy sands, sandy soils and loess were run as lysimeters. A series of extraction procedures was carried out to determine solid matter in unaltered rock materials and in soil horizons. Drainage water and moisture movement in the columns were analysed and traced respectively. The behaviour of soluble humic substance was investigated by percolation and suspension experiments. The development of seepage-water in the unsaturated zone is closely associated with the soil genetic processes. Determining autonomous chemical and physical parameters are mineral composition and grain size distribution in the original unconsolidated host rock and prevailing climatic conditions. They influence biological activity and transport of solids, dissolved matter and gases in the unsaturated zone. Humic substances, either as amorphous solid matter or as soluble humic acids play a part in diverse sorption, solution and precipitation processes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_784789 |
| institution | PANGAEA |
| language | en |
| publishDate | 1982 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Cation exchange capacity and other characteristics of soils common in Lower Saxony, Germany Holthusen, Henning Base saturation; Calcium ion exchange capacity; Carbon, inorganic, total; Carbon, organic, total; Carbonates; Cation exchange capacity; Difference; Humus; Magnesium ion exchange capacity; pH, soil; Potassium ion exchange capacity; Size fraction < 0.002 mm, clay; Sodium ion exchange capacity; Soil horizon; Soil type The chemical and biochemical processes associated with the filtration of rainwater through soils, a step in groundwater recharge, were investigated. Under simulated climatic conditions in the laboratory, undisturbed soil columns of partly loamy sands, sandy soils and loess were run as lysimeters. A series of extraction procedures was carried out to determine solid matter in unaltered rock materials and in soil horizons. Drainage water and moisture movement in the columns were analysed and traced respectively. The behaviour of soluble humic substance was investigated by percolation and suspension experiments. The development of seepage-water in the unsaturated zone is closely associated with the soil genetic processes. Determining autonomous chemical and physical parameters are mineral composition and grain size distribution in the original unconsolidated host rock and prevailing climatic conditions. They influence biological activity and transport of solids, dissolved matter and gases in the unsaturated zone. Humic substances, either as amorphous solid matter or as soluble humic acids play a part in diverse sorption, solution and precipitation processes. |
| title | (Table 1) Cation exchange capacity and other characteristics of soils common in Lower Saxony, Germany |
| topic | Base saturation; Calcium ion exchange capacity; Carbon, inorganic, total; Carbon, organic, total; Carbonates; Cation exchange capacity; Difference; Humus; Magnesium ion exchange capacity; pH, soil; Potassium ion exchange capacity; Size fraction < 0.002 mm, clay; Sodium ion exchange capacity; Soil horizon; Soil type |
| url | https://doi.org/10.1594/PANGAEA.784789 |