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start:hype_model_description:hype_human_water [2018/06/28 14:16] cpers [Wetland nutrient processes] |
start:hype_model_description:hype_human_water [2018/06/28 14:22] cpers [Wetland nutrient processes] |
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==== Wetland nutrient processes ==== | ==== Wetland nutrient processes ==== | ||
- | In wetlands retention of inorganic nitrogen is modelled (denitrification). For total phosphorus retention (sedimentation) and production (or release from sediments) of TP are modelled. The rates of these processes are constant coefficients (//teta//=1.2, //tkoeff//=20, //inpar//=2.3, //sedpar//= 0.09, and //uptpar=//0.1). The retention is limited to 99.9% of the substance in the wetland. The retention (//retIN, retTP, g/d//) depends on the rate parameter, the concentration in the wetland, wetland area, and for inorganic nitrogen also on 5-day-mean temperature. The production (//prodTP, g/d//) depends on a rate parameter, the concentration of the inflow to the wetland, wetland area, and a temperature function. | + | In wetlands, retention of inorganic nitrogen is modelled (denitrification). For total phosphorus retention (sedimentation) and production (or release from sediments) of TP are modelled. The rates of these processes are constant coefficients (//teta//=1.2, //tkoeff//=20, //inpar//=2.3, //sedpar//= 0.09, and //uptpar=//0.1). The retention is limited to 99.9% of the substance in the wetland. The retention (//retIN, retTP, g/d//) depends on the rate parameter, the concentration in the wetland, wetland area, and for inorganic nitrogen also on 5-day-mean temperature. The production (//prodTP, g/d//) depends on a rate parameter, the concentration of the inflow to the wetland, wetland area, and a temperature function (30-day-mean temperature). |
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<m> retTP = sedpar * TPconc * area </m> | <m> retTP = sedpar * TPconc * area </m> | ||
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- | <m> prodTP = uptpar * TPin * area * teta**(temp30-tcoeff) </m> | + | <m> prodTP = uptpar * TPin * area * teta^(temp30-tcoeff) </m> |
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