Species Composition, Biomass Yield, and Nutritive Value of Native Pasture in Amarti and Nashe Wetlands, Western Oromia, Ethiopia
DOI:
https://doi.org/10.20372/star.v13i2.09Keywords:
Biomass productivity, Native pasture, Species composition, WetlandsAbstract
The study examined herbaceous species composition, biomass yield, and nutritional value of native pastures in western Ethiopia's Amarti and Nashe wetlands. Each wetland area was transect-quadrat-surveyed for vegetation cover. 27 herbaceous plant species from 22 genera in 15 families were found in the Amarti wetland and 19 from 14 genera in 9 families in the Nashe. The Cyperaceae, Apiaceae, Poaceae, and Polygonaceae families provided 48.1% of the species in the Amarti wetland, but only 47.4% in the Nashe. Shannon diversity was 1.14 in Amarti and 1.44 in Nashe. The average herbaceous plant biomass yield in Amarti was 5.40tons/ha, while in Nashe it was 2.94tons/ha. Chemical composition of herbaceous plants studied: 6.94-7.36% CP, 64.69-70.04% NDF, 38.24-40.79% ADF, 3.96-7.51% ADL, 51.28-55.52% IVDMD. In general, native pasture in assessed wetlands was overstocked, losing species richness, and almost in poor condition. Nutritive values (especially during the dry season), area enclosure, buffering with neighboring zones, soil conservation, and invasive plant species control are needed.
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