New regulation of litter fall as enhanced by higher LAI values are introduced by one new addition parameter LAI Enh Coef that is specified in the Scaling of litter fall table. The scaling enhances higher litter fall rates from leaf by using an exponential function of the coef and the LAI value. Scaling=exp (coef*LAI). The default value 0 means that no effect of LAI is taken into consideration. The scaling is effective on both old and current years of leaf. PEJ