saxton_1986_K: Estimate Hydraulic Conductivity using Saxton et al. (1986)

In ncss-tech/pedotransfR: Pedotransfer Functions used by USDA-NRCS / NCSS

Estimate Hydraulic Conductivity using Saxton et al. (1986)

Description

Estimate Hydraulic Conductivity using Saxton et al. (1986)

Usage

saxton_1986_K(sand, clay, theta)

saxton_1986_theta_s(sand, clay)

saxton_1986_Ksat(sand, clay)

Arguments

sand	numeric; sand percentage
clay	numeric; clay percentage
theta	numeric; water content proportion

Value

numeric estimates of hydraulic conductivity (m/s) at specified water content ('theta') given 'sand' and 'clay' percentages

References

Saxton, K.E., W.J. Rawls, J.S. Romberger, R.I. Papendick. Estimating generalized soil-water characteristics from texture. Soil Sci. Soc. Am. J. 50: 1031-1036.

Examples

# estimate saturated water content 80% sand, 10% clay
theta_s <- saxton_1986_theta_s(80, 10)

# estimate hydraulic conductivity at 50% porosity filled with water
saxton_1986_K(80, 10, theta = theta_s / 2)

# estimate hydraulic conductivity at saturation
saxton_1986_Ksat(80, 10)

ncss-tech/pedotransfR documentation built on Feb. 14, 2024, 10:06 p.m.