径流退水过程是指在降雨很少或无降雨时期内连续的排水和消退过程，是水文过程的重要组成部分．Water retention curve is the relationship between the water content, θ, and the soil water potential, ψ. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic.
径流退水过程是指在降雨很少或无降雨时期内连续的排水和消退过程，是水文过程的重要组成部分．Water retention curve is the relationship between the water content, θ, and the soil water potential, ψ. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic.