10.6: Problem set

1. Calculate the maximum steady-state evaporation rate in mm d^-1 for a sandy loam with a water table depth of 1.0 m, with b = 4 .7, Ψ_e = -14.7 cm, and K_s = 1.60 cm h ^-1. ( Example calculation 1, example calculation 2)

2. Cumulative evaporation from bare soil during the second stage of evaporation can sometimes be approximated by ∑ E_s2 = at ^1/2. Estimate the cumulative stage two evaporation for t = 2.0 d for:

a. A sand with a = 3.3 mm d ^-1/2

b. A loam with a = 4.0 mm d^-1/2

c. A clay loam with a = 5.1 mm d^-1/2

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