Table 6 Mean percentage contribution (on a dry mass basis) of the most abundant grass species to the total grass DM yield within the defined subhabitats.
Grass species | Exp. plot | Mean % contribution (standard error) | ||
|---|---|---|---|---|
| Â | Â | Between trees (UCA) | Under trees (CA) | Trees removed (RCA) |
Tragus berteronianus | 0 % | 14.70 (7.30) | - | 7.23 (4.55) |
,, | 10 % | 8.30 (4.33) | 4.30 (3.09) | 5.73 (5.29) |
,, | 20 % | 19.03 (12.97) | 6.50 (3.26) | 13.40 (6.95) |
,, | 35 % | 28.57 (14.32) | 9.03 (4.12) | 7.03 (6.54) |
,, | 50 % | 14.23 (7.23) | 3.57 (2.51) | 5.13 (4.84) |
,, | 75 % | 11.00 (6.32) | 3.60 (2.75) | 5.90 (5.55) |
,, | 100 % | 10.87 (8.76) | 2.10 (2.10) | - |
Aristida species | 0 % | 56.80 (2.59) | - | 10.53 (1.43) |
,, | 10 % | 38.23 (2.69) | 12.93 (7.35) | 6.23 (1.53) |
,, | 20 % | 31.17 (4.93) | 14.33 (5.80) | 6.90 (3.58) |
,, | 35 % | 8.97 (2.41) | 5.23 (3.25) | 8.27 (3.93) |
,, | 50 % | 12.00 (6.89) | 6.57 (3.31) | 5.47 (2.39) |
,, | 75 % | 23.37 (20.02) | 4.53 (2.58) | 9.37 (7.00) |
,, | 100 % | 23.73 (7.05) | 0.13 (0.13) | - |
Oropetium capensis | 0 % | 1.93 (1.41) | - | 0.13 (0.13) |
,, | 10 % | 3.47 (1.09) | 0.70 (0.60) | 0.27 (0.22) |
,, | 20 % | 6.33 (4.16) | 2.17 (1.31) | 0.03 (0.03) |
,, | 35 % | 9.37 (4.27) | 3.67 (1.95) | 0.17 (0.17) |
,, | 50 % | 14.17 (3.68) | 3.90 (1.57) | 0.10 (0.10) |
,, | 75 % | 35.60 (15.69) | 5.97 (0.85) | 0.00 (0.00) |
,, | 100 % | 21.83 (2.28) | 4.93 (2.17) | - |
Cenchrus ciliaris | 0 % | 1.67 (1.67) | - | 2.10 (1.24) |
,, | 10 % | 0.00 (0.00) | 0.00 (0.00) | 2.97 (1.49) |
,, | 20 % | 0.00 (0.00) | 7.63 (3.71) | 1.20 (1.20) |
,, | 35 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 50 % | 0.00 (0.00) | 4.33 (4.33) | 0.00 (0.00) |
,, | 75 % | 0.00 (0.00) | 10.77 (9.21) | 0.50 (0.50) |
,, | 100 % | 0.00 (0.00) | 19.63 (11.67) | - |
Digitaria eriantha | 0 % | 0.00 (0.00) | - | 1.87 (1.13) |
,, | 10 % | 1.20 (1.20) | 6.00 (3.81) | 2.00 (0.91) |
,, | 20 % | 0.00 (0.00) | 6.50 (1.50) | 8.17 (3.13) |
,, | 35 % | 0.00 (0.00) | 2.10 (2.10) | 2.80 (0.90) |
,, | 50 % | 0.00 (0.00) | 17.60 (10.49) | 8.80 (4.28) |
,, | 75 % | 0.00 (0.00) | 10.10 (3.26) | 9.93 (8.52) |
,, | 100 % | 2.37 (2.37) | 40.10 (15.54) | - |
Panicum maximum | 0 % | 0.00 (0.00) | - | 6.53 (6.53) |
,, | 10 % | 0.00 (0.00) | 12.60 (12.60) | 0.00 (0.00) |
,, | 20 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 35 % | 0.00 (0.00) | 7.43 (7.43) | 2.60 (2.60) |
,, | 50 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 75 % | 0.00 (0.00) | 3.57 (3.57) | 3.83 (3.83) |
,, | 100 % | 0.00 (0.00) | 0.00 (0.00) | - |
Brachiaraia deflexa | 0 % | 4.93 (3.79) | - | 15.40 (11.72) |
,, | 10 % | 6.40 (3.13) | 21.33 (11.18) | 18.77 (15.40) |
,, | 20 % | 1.17 (0.69) | 15.67 (10.05) | 11.87 (7.89) |
,, | 35 % | 12.10 (6.14) | 26.57 (13.32) | 30.40 (19.93) |
,, | 50 % | 25.77 (12.91) | 36.60 (20.58) | 35.77 (15.44) |
,, | 75 % | 21.57 (12.27) | 41.00 (21.95) | 30.23 (13.99) |
,, | 100 % | 10.60 (6.74) | 26.40 (19.59) | - |
Enneapogon cenchroides | 0 % | 16.57 (8.67) | - | 47.10 (13.78) |
,, | 10 % | 36.63 (2.47) | 38.83 (13.97) | 51.63 (21.41) |
,, | 20 % | 37.57 (13.30) | 42.40 (9.12) | 54.20 (17.82) |
,, | 35 % | 12.03 (6.03) | 29.20 (17.05) | 39.53 (16.10) |
,, | 50 % | 26.03 (12.07) | 18.77 (12.37) | 42.83 (15.25) |
,, | 75 % | 6.23 (3.83) | 20.57 (12.13) | 36.30 (5.18) |
,, | 100 % | 0.60 (0.60) | 6.30 (5.33) | - |
Bothriochloa radicans | 0 % | 0.00 (0.00) | - | 0.00 (0.00) |
,, | 10 % | 0.00 (0.00) | 0.00 (0.00) | 9.13 (9.13) |
,, | 20 % | 4.43 (4.43) | 4.83 (4.25) | 0.00 (0.00) |
,, | 35 % | 7.37 (2.35) | 14.40 (9.46) | 9.23 (3.38) |
,, | 50 % | 4.17 (2.77) | 0.00 (0.00) | 0.00 (0.00) |
,, | 75 % | 2.30 (2.30) | 0.00 (0.00) | 1.00 (1.00) |
,, | 100 % | 19.97 (10.38) | 0.50 (0.50) | - |
Sporobolus ioclados | 0 % | 0.00 (0.00) | - | 6.63 (6.63) |
,, | 10 % | 5.83 (5.83) | 1.97 (1.82) | 3.30 (2.10) |
,, | 20 % | 0.00 (0.00) | 0.00 (0.00) | 1.67 (1.67) |
,, | 35 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 50 % | 1.33 (1.33) | 0.00 (0.00) | 1.97 (1.97) |
,, | 75 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 100 % | 0.00 (0.00) | 0.00 (0.00) | - |
Urochloa mosambicensis | 0 % | 3.40 (1.76) | - | 2.40 (1.88) |
,, | 10 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 20 % | 0.00 (0.00) | 0.00 (0.00) | 2.60 (2.60) |
,, | 35 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 50 % | 2.30 (2.30) | 0.00 (0.00) | 0.00 (0.00) |
,, | 75 % | 0.00 (0.00) | 0.00 (0.00) | 0.00 (0.00) |
,, | 100 % | 0.00 (0.00) | 0.00 (0.00) | - |