Plho

This study was conducted in Adami-Tullu Jido-Kombolcha and Arsi Negelle districts, south central Ethiopia. The objectives of the study were to evaluate the interactive effects of grazing management systems and rangeland sites on dry-matter production and chemical composition of herbaceous plants in south central Ethiopia. Data were analyzed using GLM procedure in SPSS 16.0 version, which was used for mean comparisons using post-hoc t-test that can be employed to compare mean differences for enclosure and open-grazed areas. To test the effects of management systems and altitudinal variation on dry-matter production and chemical composition of herbaceous species, mixed model analysis was employed using sample site as a random variable while grazing management systems and altitude were fixed variables. A total of 28 herbaceous species were identified. Of the identified herbaceous species, 20 species were grasses, 2 species were legumes while 6 species were forbs. Among the recorded gra...

This study was conducted in Adami-TulluJido-Kombolcha and Arsi Negelle districts in south-central Ethiopia. The inferences of this study are, to analyze the effects of grazing pressure and altitude on rangeland condition, herbaceous biomass and species composition in the areas. Assessing rangeland condition: like grass species composition, basal cover, litter cover, the number of seedlings, the age distribution of dominant grasses, soil erosion and compaction were considered and the main factors for rangeland condition assessment. The data were analyzed using the GLM procedure in SPSS 16.0 version, which was used for mean comparisons differences for enclosures areas and open-grazed areas. To test the effect of grazing pressure and altitude on rangeland condition, biomass production, species composition of herbaceous plants and the site was used as a random variable while grazing pressure and altitude were fixed variables. The total scores of herbaceous species, biomass production of...