Global Journal of Science Frontier Research, D: Agriculture and Veterinary, Volume 23 Issue 1
Graphical abstract of AMUN_SHC pseudo-code. START INPUT C(h)= c: water holding capacity, (S(i,j))= Root water uptake READ MO: Soil moisture content (v/v), S: Soil salinity (ds/m), SSI: Soil stress index, PSI: Plant stress index, MP: Soil matric potential(Mpa), PC: Partially compensated uptake FC: Fully compensated uptake, Avg: Average plant stress index, OP: Soil osmotic potential(Mpa),Ψ= hS: Soil total potential(Mpa), Ψ*=hfc: Soil total potential at field capacity(Mpa), = K(h):Unsaturated hydraulic conductivity(L/T),n*: Days, (n,m,α):Van-Genuchten constants SSI= ( 1+(αΨ) n ) m ( 1+(α ∗ ) n ) m (m=1/n) β = ( , ) − − − − – ( ) − − S(h, z, t) = β . SSI (h, z, t) β = Tp. ( ) + = ( ) + −( ) ( ) + ( ( ) = = ) + ( ) = = CRWU= ( θ V . ∆ z 2 . h*/Tp) [ ( ) +∆ −( ) +∆ ⬚ + −( ) ( ) ⬚ ] [ ( ) +∆ −( ) +∆ ⬚ + −( ) ( ) ⬚ ] T C = PSI. T P = β . SSI SSI> PSI, Tp> β N0 Yes No Yes Write Uncompensated Uptake Write Partially Compensated Uptake Write Fully Compensated Uptake PROCESSES DECISION DECISION OUTPUT OUTPUT END © 2023 Global Journals 1 Year 2023 26 Global Journal of Science Frontier Research Volume XXIII Issue ersion I VI ( D) Figure 1: The Modified Richard’s Equation for Assessing the Impact of Drought and Salinity in Arid and Semi-Arid Zones. Part Two: A Soil Hydraulic Capacitance
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