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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] (current)
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: 2018/12/14 13:12 by cpers