Influence of the shaded area from carob (Albizia lebbek) trees on C. nlemfuensis pasture and soil indicators

For three consecutive years, the effect of the shaded or non-shaded area fr om carob trees on certain pasture and soil indicators was studied according to a random block design in a factorial arrangement (3 x 2) with 3 replica tions. In the shaded area there was more pasture availability (241.77 vs 22 8.75 g DM/m(2) and mulch accumulation was gr(;ater in the shaded area (82.6 7 vs 169.58 g DM/m(2)). The shaded area decreased soil temperature (25.76 v s 26.57 degreesC), and increased organic matter (6.45 vs 5.39%), humidity ( 24.96 vs 23.41%) and the presence of macrofauna (7.29 vs 4.88 individuals/m (2)) and its biomass (5.89 - 5.42 g/m(2)). It is concluded that this tree i n the grassland Is beneficial in increasing productivity and the OM content of the soil and creates Favourable microclimate for biota activity. Furthe r studies are recommended in other grassland ecosystems where other valuabl e tree and shrub species for livestock production, are found.