Effects of Vegetation Cover, Grazing and Season on Herbage Species Composition and Biomass: A Case Study of Yabello Rangeland, Southern Ethiopia

FENETAHUN Yeneayehu; Xinwen XU; Yuan YOU; Yongdong WANG

doi:10.5814/j.issn.1674-764x.2020.02.004

[1] AngassaA. Effects of grazing intensity and bush encroachment on herbaceous species and rangeland condition in southern Ethiopia. Land Degradation and Development, 25, 438-451(2014).

[2] AngassaA, ObaG. Effects of grazing pressure, age of enclosures and seasonality on bush cover dynamics and vegetation composition in southern Ethiopia. Journal of Arid Environments, 74, 111-120(2010).

[3] AyanaA, GufuO. Relating long-term rainfall variability to cattle population dynamics in communal rangelands and a government ranch in southern Ethiopia. Agricultural Systems, 94, 715-725(2007).

[4] R MT. Rangeland utilisation assessment and modelling for grazing and fire management. Journal of Environmental Management, 64, 377-386(2002).

[5] Bartolome JW, Jackson RD, Betts A DK et al. Effects of residual dry matter on net primary production and plant functional groups in Californian annual grasslands. Grass and Forage Science, 62, 445-452(2007).

[6] BikilaN, BedasaE, SamuelT et al. Control of bush encroachment in Borana zone of southern Ethiopia: Effects of different control techniques on rangeland vegetation and tick populations. Pastoralism, 4, 18(2014).

[7] Bikila NG, Tessam ZK, Abule EG. Carbon sequestration potentials of semi-arid rangelands under traditional management practices in Borana, Southern Ethiopia. Agriculture, Ecosystem and Environment, 223, 108-114(2016).

[8] BilliP, Alemu YT, CiampaliniR. Increased frequency of flash floods in Dire Dawa, Ethiopia: Change in rainfall intensity or human impact?. Natural Hazards, 76, 1373-1394(2015).

[9] ChaveJ, Réjou-MéchainM, BúrquezA et al. Improved allometric models to estimate the aboveground biomass of tropical trees. Global Change Biology, 20, 3177-3190(2014).

[10] Cowling RM. Challenges to the “new” rangeland science. Trends in Ecology & Evolution, 15, 303-304(2000).

[11] DalleG, Maass BL, IsselsteinJ. Rangeland condition and trend in the semi-arid Borana lowlands, southern Oromia, Ethiopia. African Journal of Range & Forage Science, 23, 49-58(2015).

[12] GemedoD, Brigittie LM, JohannesI. Plant biodiversity and Ethnobotany of Borena pastoralists in southern Oromia, Ethiopia. Economic Botany, 59, 43-65(2005).

[13] Habtamu TK, Madakadze IC, AngassaA et al. Nutritive value of grasses in semi-arid rangelands of Ethiopia: Local experience based herbage preference evaluation versus laboratory analysis. Asian-Australasian Journal of Animal Sciences, 26, 366-377(2013).

[14] HasennG, HaoX, ZhaoM et al. Effect of grazing intensity on carbon and nitrogen in soil and vegetation in a meadow steppe in Inner Mongolia. Agriculture, Ecosystems & Environment, 125, 21-32(2013).

[15] Herlocker DJ. Rangeland ecology and resource development in eastern Africa. Nairobi: German Agency for Technical Co-operation.(1999).

[16] KrambergerB, GselmanA, Podvr?nikM et al. Effects of low precipitation periods on the herbage yield of mesic semi-natural grasslands under different cutting regimes. Zemdirbyste-Agriculture, 101, 11-18(2014).

[17] LantaV, DoleJ, LantováP et al. Effects of pasture management and fertilizer regimes on botanical changes in species-rich mountain calcareous grassland in Central Europe. Grass and Forage Science, 64, 443-453(2009).

[18] LinY, HongM, HanG et al. Grazing intensity affected spatial patterns of vegetation and soil fertility in a desert steppe. Agriculture, Ecosystems & Environment, 138, 282-292(2010).

[19] MligoC. Determination of the soil organic carbon, nitrogen, available phosphorus and the combined aboveground plant materials in the semi-arid Mbulu District, Tanzania. African Journal of Ecology, 47, 352-359(2009).

[20] SamuelTuffa. Estimating grass productivity under different clipping frequencies and rainfall amount: Implications for rangeland responses to climate change. PhD Diss, University of. Hohenheim.(2017).

[21] Sánchez-JardónL, AcostaB, del PozoA et al. Grassland productivity and diversity on a tree cover gradient in Nothofagus pumilio in NW Patagonia. Agriculture, Ecosystems & Environment, 137, 213-218(2010).

[22] SirajK, AbdellaG. Effects of bush encroachment on plant composition, diversity and carbon stock in Borana rangelands, Southern Ethiopia. International Journal of Biodiversity and Conservation, 10, 230-245(2018).

[23] TakeleD, AmanuT, EbaB. Feed resources, feeding system and feed marketing for dairy production in the lowland and mid-highland agro-ecologies of Borana Zone, Ethiopia. International Journal of Innovation and Applied Studies, 7, 1025-1033(2014).

[24] Tamrat AB, Stein RM. Assessing the effects of woody plant traits on understory herbaceous cover in a semiarid rangeland. Environmental Management, 56, 165-175(2015).

[25] TeshomeA, AbuleE, LisaneworkN. Evaluation of woody vegetation in the rangeland of Southeast Ethiopia. International Research Journal of Agriculture Science and Soil Science, 2, 113-126(2012).