Nutrient Transport Modelling in the Daugava River Basin - DiVA Portal

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Description of parameter/input Name Unit Initial valueCalibratedValueReferenceMixed forest 75 80Deciduous forest 75 80Water 100Soil erodibility factor K k 0.25 Dai et al., 2000Topographic factor (LS) k Hannerz and Destouni, 2005Artificial surfaces 2.233Bare areasCultivated areas 5.594Herbaceous+shrub 3.680Wetland 2.094Snow and iceConiferous 3.862Mixed forest 4.325Deciduous forest 3.587Water 2.388Cover and management factor C k Dai et al., 2000Bare areas 0Cultivated areas 0.01Herbaceous+shrub 0.01Wetland 0.01Snow and ice 0Coniferous 0.001Mixed forest 0.001Deciduous forest 0.00128
Description of parameter/input Name Unit Initial valueCalibratedValueReferenceWater 0Supporting practice factor P k 0 Dai et al., 2000Sediment N concentration Cs mg/kg 2800 Mörth, 2004Sediment P concentration C s mg/kg 1276 Mörth, 2004N concentration groundwater box 1 C1gN mg/l 3 1.3 Löfgren, 2004N concentration groundwater box 2 C2gN mg/l 1 1 Löfgren, 2004P concentration groundwater box 1 C1gP mg/l 0.005 Löfgren, 2004P concentration groundwater box 2 C2gP mg/l 0.002 Löfgren, 2004Number of manured land uses 0N concentration in runoff Cd k mg/l Löfgren, 2004Bare areas 1.6Cultivated areas 6.5Lichens and wetland 1Snow and ice 0Coniferous 0.5Mixed forest 0.5Deciduous forest 0.5Water 1.6P concentration in runoff Cd k mg/l Löfgren, 2004Artificial surfaces 0Bare areas 0.01Cultivated land 0.17Herbaceous land 0.0129
Page 1 and 2: UPTEC W05 009Examensarbete 20 pFebr
Page 3 and 4: Nyckelord: avrinning, näringsämne
Page 6 and 7: APPENDIX C. DETERMINATION OF POTENT
Page 8 and 9: simulation system CatchmentSim. The
Page 10 and 11: Figure 1. The hydrological part of
Page 12 and 13: TemperaturePrecipitation20.00120deg
Page 14 and 15: 3.2 MODEL DESCRIPTION3.2.1 An overv
Page 16 and 17: Groundwater discharge to the river
Page 18 and 19: Groundwater nutrient loadsThe groun
Page 20 and 21: There is therefore no guarantee tha
Page 22 and 23: a) Streamflow, calibration periodb)
Page 24 and 25: 4.2 IMPACT OF THE CURVE NUMBER ON N
Page 26 and 27: the chosen value is a very rough ap
Page 28 and 29: all cultivated land will have winte
Page 30 and 31: HELCOM, 2004a. 30 years of protecti
Page 32 and 33: Appendix A. Input data and paramete
Page 36 and 37: Description of parameter/input Name
Page 38 and 39: moisture.Figure B1. Selection of cu
Page 40 and 41: wherea t = rainfall erosivity coeff
Page 42 and 43: Appendix F. Regression lines of rep

Nutrient Transport Modelling in the Daugava River Basin - DiVA Portal

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