Calculates the effects of Soil Water Content on decomposition rates according to the Daycent Model.
fW.Daycent1(
swc,
a = 0.6,
b = 1.27,
c = 0.0012,
d = 2.84,
partd = 2.65,
bulkd = 1,
width = 1
)A data frame with values of water filled pore space (wfps) and effects of soil water content on decomposition rates. Both vectors are unitless.
A scalar or vector with soil water content of a soil layer (cm).
Empirical coefficient. For fine textured soils a = 0.6. For coarse textured soils a = 0.55.
Empirical coefficient. For fine textured soils b = 1.27. For coarse textured soils b = 1.70.
Empirical coefficient. For fine textured soils c = 0.0012. For coarse textured soils c = -0.007.
Empirical coefficient. For fine textured soils d = 2.84. For coarse textured soils d = 3.22.
Particle density of soil layer.
Bulk density of soil layer (g/cm^3).
Thickness of a soil layer (cm).
Kelly, R. H., W. J. Parton, M. D. Hartman, L. K. Stretch, D. S. Ojima, and D. S. Schimel (2000), Intra-annual and interannual variability of ecosystem processes in shortgrass steppe, J. Geophys. Res., 105.