Table 4 Results of the regression analyses of the relations between the DM yields of grasses within the defined subhabitats (dependent variable) and Evapotranspiration Tree Equivalents (ETTE) ha-1 (independent variable).
Subhabitat | Season | Regression equation | r2 | r | n | P |
|---|---|---|---|---|---|---|
Between trees (UCA) | 1 | y = 57.188 - 0.00765x | 0.282 | -0.532 | 7 | 0.220 ns |
| Â | 2 | ln y = 7.017 - 0.000510x | 0.861 | -0.928 | 7 | 0.003 ** |
| Â | 3 | ln y = 6.708 - 0.000579x | 0.828 | -0.910 | 7 | 0.004 ** |
Under trees (CA) | 1 | ln y = 5.052 - 0.000274x | 0.679 | -0.824 | 7 | 0.044 * |
| Â | 2 | ln y = 6.936 - 0.000257x | 0.662 | -0.814 | 7 | 0.049 * |
| Â | 3 | ln y = 6.099 - 0.000349x | 0.567 | -0.753 | 7 | 0.084 ns |
Trees removed (RCA) | 1 | y = 274.648 - 0.0479x | 0.358 | -0.599 | 7 | 0.209 ns |
| Â | 2 | ln y = 7.745 - 0.000284x | 0.868 | -0.932 | 7 | 0.007 ** |
| Â | 3 | ln y = 6.936 - 0.000466x | 0.980 | -0.990 | 7 | 0.002 ** |