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Table 5 Results of the regression analyses of the relations between the DM yields of forbs within the defined subhabitats (dependent variable) and Evapotranspiration Tree Equivalents (ETTE) ha-1 (independent variable).

From: Tree thinning as an option to increase herbaceous yield of an encroached semi-arid savanna in South Africa

Subhabitat Season Regression equation r2 r n P
Between trees (UCA) 1 ln y = 2.756 + 0.000214x 0.137 0.370 7 0.414 ns
  2 y = 43.396 + 0.01467x 0.272 0.521 7 0.230 ns
  3 ln y = 3.911 + 0.000156x 0.126 0.355 7 0.434 ns
Under trees (CA) 1 y = - 65.59 + 0.12309x 0.675 0.822 7 0.045 *
  2 y = 90.378 + 0.05286x 0.813 0.902 7 0.014 *
  3 y = 139.76 + 0.04719x 0.416 0.645 7 0.167 ns
Trees removed (RCA) 1 y = 21.291 + 0.00130x 0.021 0.146 7 0.783 ns
  2 y = 72.022 - 0.01599x 0.537 -0.733 7 0.098 ns
  3 ln y = 0.888 + 0.000824x 0.611 0.781 7 0.066 ns