Table 2 Four indicators of the frequency of the vegetation control operations required for understory species, based on the forest area estimates defined in Table 1. In the following formulas, i corresponds to the plant species or group and j to the region
Forest | Plant species or plant group i | |
|---|---|---|
Present (plant cover > 0%) | Present with a high cover (plant cover > 50%) | |
All forests (plots with canopy cover ≤ 100%) | \(\%{A_{PC>0, CC\le 100}}_{i,j}=\frac{100\times {A}_{PC_i>0, CC\le 100,j}}{A_{CC\le 100,j}}\) | \(\%{A_{PC>50, CC\le 100}}_{i,j}=\frac{100\times {A}_{PC_i>50, CC\le 100,j}}{A_{CC\le 100,j}}\) |
Open forests (plots with canopy cover < 50%) | \(\%{A_{PC>0, CC<50}}_{i,j}=\frac{100\times {A}_{PC_i>0, CC<50,j}}{A_{CC<50,j}}\) | \(\%{A_{PC>50, CC<50}}_{i,j}=\frac{100\times {A}_{PC_i>50, CC<50,j}}{A_{CC<50,j}}\) |