Parameter | Description | Units | Valid Values | Default Values |
FDGREM | Fraction of standing dead removed by a grazing event. | fraction per month | 0.0 to 1.0 | |
FECF(E) | Fraction of excreted (N, P, S) which goes into faeces (remainder goes into urine), where E = 1 for N, 2 for P, 3 for S. | fraction per month | 0.0 to 1.0 | |
FECLIG | Lignin content of faeces (fraction of C). | 0.0 to 1.0 | ||
FLGREM | Fraction of live shoots removed by a grazing event. | fraction per month | 0.0 to 1.0 | |
GFCRET | Fraction of consumed C which is excreted in faeces and urine. | fraction per month | 0.0 to 1.0 | |
GRET(E) | Fraction of consumed (N, P, S) which is excreted in faeces and urine (should take into account N losses due to leaching or volatilization from the manure), where E = 1 for N, 2 for P, 3 for S. | fraction per month | 0.0 to 1.0 | |
GRZEFF |
Specifies the effect of grazing on plant production: 0 = Grazing has no direct effect on production, except for the removal of vegetation and return of nutrients by the animals; 1 = Lightly grazed effect - has a constant root:shoot ratio (not changing with grazing) and a linear decrease in potential plant production with increasing grazing intensity. 2 = Heavy grazed effect - quadratic impact on both aboveground production and root/shoot ratio; aboveground plant production is increased for moderate grazing and decreasing sharply for heavy grazing levels (greater than 40% removed per month). The root:shoot ratio is constant for low to moderate grazing levels and decreases rapidly for heavy grazing levels. 3 = Option 0 with quadratic impact on root/shoot ratio. 4 = Option 1 with a linear impact on root/shoot ratio. 5 = Quadratic impact on aboveground production and linear impact on root/shoot ratio. 6 = Linear impact on both aboveground production and root/shoot ratio. |
0-6 |