start:hype_model_description:hype_np_soil
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start:hype_model_description:hype_np_soil [2018/11/13 17:54] cpers [Soil erosion] |
start:hype_model_description:hype_np_soil [2018/12/14 13:12] cpers [Soil erosion] |
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| The parameters //erodslope//, //erodexp// and //erodindex// are general. The parameters //erodluse// and //erodsoil// are land-use and soil type dependent. Subbasin input is needed on //slope//, the subbasins average slope, and an erosion index, //EI//. | The parameters //erodslope//, //erodexp// and //erodindex// are general. The parameters //erodluse// and //erodsoil// are land-use and soil type dependent. Subbasin input is needed on //slope//, the subbasins average slope, and an erosion index, //EI//. | ||
| - | A selective process is affecting the soil erosion of phosphorus. Smaller and lighter particles are eroded easier than larger ones. The tiny particles contain more P per unit weight than the average particle of the soil. Therefore an enrichment factor (//enrichment//) is used. | + | A selective process is affecting the soil erosion of phosphorus. Smaller and lighter particles are eroded easier than larger ones. The tiny particles contain more P per unit weight than the average particle of the soil. Therefore an enrichment factor (//enrichment//) is used. The enrichment factor is calculated from three parameters (//ppenrmax, ppenrstab, ppenrflow//), one of which is soil type dependent (//ppenrmax//), and the particle bearing flow. Typical values of the parameters, here called max, stab and flowstab, are given in the example in Figure 2. |
start/hype_model_description/hype_np_soil.txt · Last modified: 2024/04/16 09:10 by cpers
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