Table 7 List of the main parameters of the SurEau model used in for the simulations
From: SurEau: a mechanistic model of plant water relations under extreme drought
Parameters | Name in SurEau | Unit | Value | ||
|---|---|---|---|---|---|
Soil | Soil depth | Soil_Depth | m | 1,12 | |
Soil width | Soil_Width | m | 1,32 | ||
Rock fraction | Layer 1 | Rock_f1 | % | 0 | |
Layer 2 | Rock_f2 | % | 0 | ||
Layer 3 | Rock_f3 | % | 0 | ||
Parameters forvan Genuchten equation | Teta_s | Teta_s | m3/m3 | 0,28 | |
Teta_r | Teta_r | m3/m3 | 0,1 | ||
alpha | alpha | cm-1 | 5,00E-04 | ||
n | n | - | 2 | ||
K_sat | K_sat | mol/s/m/MPa | 5 | ||
L | L | - | 0,5 | ||
Rain interception | Minimum interception | Interception_min | % | 20 | |
Threshold rain intensity | Threshold_rain | mm | 2 | ||
Interception factor | Interception_factor | - | 1 | ||
Leaf | Characteristic size | Leaf_size | mm | 50 | |
Leaf angle | leaf_angle | degrees | 45 | ||
Maximum leaf area | LA_max_init | m2 | 10,5 | ||
Minimum leaf area | LA_min | m2 | 0 | ||
Leaf phenology | Day at budburst | LA_day1 | DOY | 123 | |
First day at LA_max | LA_day2 | DOY | 140 | ||
Last day at LA_max | LA_day3 | DOY | 285 | ||
First day at LA_min | LA_day4 | DOY | 325 | ||
Leaf succulence | Succulence | g/m2 | 100 | ||
Apoplasmic fraction | Leaf_apo_fraction | % | 0,25 | ||
LMA | LMA | g/m2 | 45,85 | ||
Branch | Length | Length_Branch | m | 2,5 | |
Branch end diameter | Diam_Branch | m | 0,003 | ||
Apoplasmic fraction | Branch_apo_fraction | % | 0,4 | ||
Symplasmic fraction | Branch_symp_fraction | % | 0,2 | ||
Density | Density | kg/m3 | 700 | ||
Total surface area | Branch_Area_FR | m2 | 5,78 | ||
Trunk | Length | Length_Trunk | m | 10 | |
dbh | Diam_Trunk | m | 0,0859 | ||
Apoplasmic fraction | Trunk_apo_fraction | % | 0,4 | ||
Symplasmic fraction | Trunk_symp_fraction | % | 0,2 | ||
Sapwood fraction | Trunk_sapwood_fraction | % | 0,33 | ||
Total surface area | Trunk_Area_FR | m2 | 2,69 | ||
Root | Fine roots length | Length_Root_fi | m | 1114,08 | |
Fine roots end diameter | Diam_Root | m | 0,001 | ||
Apoplasmic fraction | Root_apo_fraction | % | 0,4 | ||
Symplasmic fraction | Root_symp_fraction | % | 0,2 | ||
Total roots length | Length_Root_FR | m | 3835,79 | ||
Total fine roots surface area | Root_Area_FR | m2 | 18,04 | ||
Total roots surface area | Root_Area_fi_0 | m2 | 3,5 | ||
Root distribution | upper soil layer | Root_upper | 2,5 | 2,5 | |
middle soil layer | Root_middle | 0,4 | 0,4 | ||
lower soil layer | Root_lower | 0,1 | 0,1 | ||
Root interface gap factor | gap | - | 0 | ||
Water reservoirs | Branch symplasmic reservoir | Q_Branch_Symp_FR | kg | 2,43 | |
Branch apoplasmic reservoir | Q_Branch_Apo_FR | kg | 4,85 | ||
Trunk symplasmic reservoir | Q_Trunk_Sym_FR | kg | 6,39 | ||
Trunk apoplasmic reservoir | Q_Trunk_Apo_FR | kg | 12,77 | ||
Root symplasmic reservoir | Q_Root_Symp_FR | kg | 1,98 | ||
Root apoplasmic reservoir | Q_Root_Apo_FR | kg | 3,95 | ||
Stomatal and epidermal conductances | Canopy aerodynamic conductance | g_crown0 | mmol/s/m2 | 45 | |
Maximum stomatal conductance | gs_max | mmol/s/m2 | 200 | ||
Nocturnal stomatal conductance | gs_night | mmol/s/m2 | 20 | ||
Parameter for stomatal response to PAR | Jarvis_PAR | - | 0,006 | ||
Temperature for maximal gs_max | Tgs_optim | °C | 25 | ||
Sensitivity of gs_max to temperature | Tgs_sens | - | 17 | ||
Cuticular conductance at 20°C | g_cuti_20 | mmol/s/m2 | 3 | ||
Phase transition temperature | TP | °C | 37,5 | ||
Q10 below TP | Q10_1 | - | 1,2 | ||
Q10 above TP | Q10_2 | - | 4,8 | ||
Branch epidermal conductance | g_Branch | mmol/s/m2 | 3 | ||
Trunk epidermal conductance | g_Trunk | mmol/s/m2 | 3 | ||
Root epidermal conductance | g_Root | mmol/s/m2 | 1 | ||
Soil surface conductance at soil saturation | g_Soil0 | mmol/s/m2 | 30 | ||
Regulation parameter for gs | Regul_gs_para1 | - | 0,415 | ||
Hydraulic conductances | Branch apoplasmic conductance | K_Branch_Apo_FR | mmol/s/MPa | 82,56 | |
Trunk apoplasmic conductance | K_Trunk_Apo_FR | mmol/s/MPa | 394,42 | ||
Root apoplasmic conductance | K_Root_Apo_FR | mmol/s/MPa | 3570,78 | ||
Leaf apoplasmic specific conductance | K_Leaf_Apo0 | mmol/s/MPa/m2 | 5 | ||
Terminal branch apoplasmic specific conductivity | K_Branch_Apo0 | mmol/s/MPa/m | 5000 | ||
Trunk apoplasmic specific conductivity | K_Trunk_Apo0 | mmol/s/MPa/m | 50000 | ||
Terminal root apoplasmic specific conductivity | K_Root_Apo0 | mmol/s/MPa/m | 25000 | ||
Leaf symplasmic specific conductance | K_Leaf_Symp_0 | mmol/s/MPa/m2 | 1,8 | ||
Branch symplasmic specific conductance | K_Branch_Symp0 | mmol/s/MPa/m2 | 1 | ||
Trunk symplasmic specific conductance | K_Trunk_Symp0 | mmol/s/MPa/m2 | 1 | ||
Root symplasmic specific conductance | K_Root_Symp0 | mmol/s/MPa/m2 | 1,4 | ||
Hydraulic capacitances | Leaf specific apoplasmic capacitance | C_Leaf_Apo | Kg/MPa/dm3 | 1,00E-04 | |
Branch specific apoplasmic capacitance | C_Branch_Apo | Kg/MPa/dm3 | 5,00E-06 | ||
Trunk specific apoplasmic capacitance | C_Trunk_Apo | Kg/MPa/dm3 | 1,00E-05 | ||
Root specific apoplasmic capacitance | C_Root_Apo | Kg/MPa/dm3 | 6,00E-04 | ||
Pressure Volume curves | Modulus of elasticity | Leaf symplasm | Epsilon_Leaf_Symp | MPa | 10 |
Branch symplasm | Epsilon_Branch_Symp | MPa | 10 | ||
Trunk symplasm | Epsilon_Trunk_Symp | MPa | 10 | ||
Root symplasm | Epsilon_Root_Symp | MPa | 10 | ||
Osmotic potential at full turgor | Leaf symplasm | Pi0_Leaf_Symp | MPa | -2,1 | |
Branch symplasm | Pi0_Branch_Symp | MPa | -1 | ||
Trunk symplasm | Pi0_Trunk_Symp | MPa | -1 | ||
Root symplasm | Pi0_Root_Symp | MPa | -1 | ||
Cavitation curves | P50 | Leaf apoplasm | P50_Leaf_Apo | MPa | -3,4 |
Branch apoplasm | P50_Branch_Apo | MPa | -3,4 | ||
Trunk apoplasm | P50_Trunk_Apo | MPa | -3,4 | ||
Root apoplasm | P50_Root_Apo | MPa | -3,4 | ||
Slope | Leaf apoplasm | Slope_Leaf_Apo | %/MPa | 60 | |
Branch apoplasm | Slope_Branch_Apo | %/MPa | 60 | ||
Trunk apoplasm | Slope_Trunk_Apo | %/MPa | 60 | ||
Root apoplasm | Slope_Root_Apo | %/MPa | 60 | ||
Cavitation legacy | Legacy of PLC | Leaf apoplasm | leg_Leaf | - | 0 |
Branch apoplasm | leg_Branch | - | 0 | ||
Trunk apoplasm | leg_Trunk | - | 0 | ||
Root apoplasm | leg_Root | - | 0 | ||