Calculates the effects of water content and pore volume on decomposition rates.
fW.Candy(theta, PV)
A scalar or vector containing values of volumetric soil water content.
A scalar or vector containing values of pore volume.
J. Bauer, M. Herbst, J.A. Huisman, L. Weiherm\"uller, H. Vereecken. 2008. Sensitivity of simulated soil heterotrophic respiration to temperature and moisture reduction functions. Geoderma, Volume 145, Issues 1-2, 15 May 2008, Pages 17-27.