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Journal of Resources and Ecology
Vol. 11, Issue 2, 159 (2020)

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

FENETAHUN Yeneayehu¹, Xinwen XU², Yuan YOU², and Yongdong WANG²

Author Affiliations

¹University of Chinese Academy of Science, Beijing 100049, China

²State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institution of Ecology and Geography, Chinese Academy of Science, Urumqi 830011, China

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DOI: 10.5814/j.issn.1674-764x.2020.02.004 Cite this Article

FENETAHUN Yeneayehu, Xinwen XU, Yuan YOU, Yongdong WANG. Effects of Vegetation Cover, Grazing and Season on Herbage Species Composition and Biomass: A Case Study of Yabello Rangeland, Southern Ethiopia[J]. Journal of Resources and Ecology, 2020, 11(2): 159 Copy Citation Text

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Location of the study area

Fig. 1. Location of the study area

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The plot experimental arrangement for the study

Fig. 2. The plot experimental arrangement for the study

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Fig. 3. Effect of vegetation cover type on herbage percentage cover

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Fig. 4. Effect of grazing on herbage percentage cover

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Fig. 5. Effect of season on herbage percentage cover in bush cover rangeland area

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Fig. 6. Effect of season on herbage percentage cover in open grassland area

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Fig. 7. Effect of season on herbage percentage cover in grazing rangeland area

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Fig. 8. Effect of season on herbage percentage cover in non-grazing rangeland area

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Fig. 9. Effect of vegetation cover type on herbage species height

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Fig. 10. Effect of grazing on herbage species height

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Fig. 11. Effect of season on herbage species height in bush land area

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Fig. 12. Effect of season on herbage species height in open grassland area

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Fig. 13. Effect of season on herbage species height in grazing grassland area

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Fig. 14. Effect of season on herbage species height in non-grazing grassland area

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Fig. 15. Effects of vegetation cover type linked to season on herbage mass production (a) and effects of grazing linked to season on herbage mass production (b)

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List of Species		Vegetation type				Grazing treatment
Scientific name	Local name	Bush land		Open grass land		Grazing		Non- grazing
Scientific name	Local name	Ds	Rs	Ds	Rs	Ds	Rs	Ds	Rs
Chrysopogon aucheri^*	Alaloo	11	18	14	24	10	17	18	35
Dactyloctenium aegyptium	Ardaa	+	4	1	7	+	5	5	12
Xerophyta humilis	Areedoo	2	9	6	11	-	3	11	15
Aristida kenyensis	Biilaa	+	10	5	22	-	1	15	29
Eragrostis capitulifera	Biilaa	+	1	11	23	+	13	13	23
Harpachne schimperi	Biilaa	-	+	1	5	+	7	2	16
Leptothrium senegalense	Biilaa diidaa	4	13	5	22	3	21	16	19
Melinis repens	Buuyyoo xirooftuu	-	+	1	3	+	4	8	15
Themeda triandra	Gaaguroo	3	11	6	12	2	9	7	9
Digitaria milanjiana	Hiddoo	5	14	8	17	3	21	7	27
Chloris roxburghiana^*	Hiddoo luucolee	12	21	16	28	13	33	22	54
Digitaria naghellensis	Ilmogorii	+	2	+	7	-	1	3	5
Panicum maximum	Loloqaa	-	+	1	3	-	2	+	8
Bothriochloa insculpta	Luucolee	-	3	1	9	-	11	+	11
Cenchrus ciliaris^*	Mata guddeessa	10	19	14	31	15	29	31	51
Pennisetum mezianum	Ogoondhichoo	+	1	3	6	-	1	1	7
Eragrostis papposa	Saamphillee	-	+	+	2	-	2	1	5
Sporobolus discosporus	Saamphillee kootichaa	+	7	5	8	+	9	8	11
Grewia tenax	Saarkama	+	1	1	3	+	1	+	5
Grewia tenax	Saarkama	+	9	11	9	-	3	5	15
Cyperus sp.	Saattuu	1	4	2	17	+	7	6	11
Cyperus bulbosus	Saattuu arbaa	1	2	3	10	1	2	3	7
Sporobolus pellucidus	Salaqoo	7	9	5	13	2	3	4	4
Cynodon dactylon	Sardoo	3	7	10	16	1	20	18	21
Heteropogon contortus	Seericha	+	1	2	11	1	14	11	12
Loudetia flavida	Seericha gaaraa	+	3	3	13	+	5	7	21

Table 1.

Herbage species cover (%) per vegetation cover type, grazing and season treatments. Values shown are the average percentages based on 1 m² quadrats in which a given species was recorded

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List of Species		Vegetation type				Grazing treatment
Scientific name	Local name	Bush land		Open grass land		Grazing		Non-grazing
Scientific name	Local name	Ds	Rs	Ds	Rs	Ds	Rs	Ds	Rs
Chrysopogon aucheri^*	Alaloo	0.15	0.30	0.4	0.70	0.12	0.41	0.62	0.74
Dactyloctenium aegyptium	Ardaa	+	0.13	0.18	0.21	0.11	0.24	0.33	0.52
Xerophyta humilis	Areedoo	0.02	0.50	0.28	0.31	-	0.41	0.37	0.51
Aristida kenyensis	Biilaa	+	0.26	0.06	0.29	-	0.13	0.5	0.58
Eragrostis capitulifera	Biilaa	+	0.01	0.11	0.23	+	0.17	0.33	0.38
Harpachne schimperi	Biilaa	-	0.02	0.15	0.33	0.03	0.47	0.41	0.51
Leptothrium senegalense	Biilaa diidaa	0.09	0.29	0.21	0.29	0.35	0.41	0.49	0.70
Melinis repens	Buuyyoo xirooftuu	-	0.07	0.18	0.31	0.06	0.62	0.67	0.69
Themeda triandra	Gaaguroo	0.03	0.11	0.54	0.61	0.20	0.59	0.41	0.69
Digitaria milanjiana	Hiddoo	0.29	0.34	0.08	0.66	0.03	0.57	0.70	0.88
Chloris roxburghiana^*	Hiddoo luucolee	0.20	0.55	0.46	0.67	0.22	0.67	0.79	0.87
Digitaria naghellensis	Ilmogorii	0.11	0.20	0.32	0.48	-	0.29	0.30	0.51
Panicum maximum	Loloqaa	-	0.17	0.19	0.37	-	0.27	0.39	0.58
Bothriochloa insculpta	Luucolee	-	0.35	0.31	0.22	-	0.11	0.27	0.51
Cenchrus ciliaris^*	Mata guddeessa	0.18	0.33	0.49	0.61	0.25	0.82	0.81	0.90
Pennisetum mezianum	Ogoondhichoo	0.13	0.32	0.24	0.36	-	0.8	0.11	0.37
Eragrostis papposa	Saamphillee	-	0.08	0.09	0.22	-	0.23	0.28	0.30
Sporobolus discosporus	Saamphillee kootichaa	0.09	0.27	0.25	0.48	0.05	0.49	0.58	0.61
Grewia tenax	Saarkama	0.06	0.31	0.33	0.43	0.05	0.47	0.42	0.44
Grewia tenax	Saarkama	0.09	0.31	0.11	0.29	-	0.33	0.45	0.55
Cyperus sp.	Saattuu	0.04	0.14	0.22	0.27	0.03	0.37	0.46	0.48
Cyperus bulbosus	Saattuu arbaa	0.09	0.27	0.29	0.40	0.05	0.41	0.39	0.45
Sporobolus pellucidus	Salaqoo	0.02	0.21	0.15	0.31	0.07	0.33	0.42	0.49
Cynodon dactylon	Sardoo	0.03	0.17	0.10	0.21	0.09	0.20	0.26	0.38
Heteropogon contortus	Seericha	0.09	0.12	0.29	0.34	0.08	0.32	0.37	0.39
Loudetia flavida	Seericha gaaraa	0.08	0.22	0.19	0.27	0.07	0.20	0.32	0.41

Table 2.

Herbage height (m) for each vegetation type, grazing and season treatment. Values from 1 m² quadrats in which a given species was recorded

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FENETAHUN Yeneayehu, Xinwen XU, Yuan YOU, Yongdong WANG. Effects of Vegetation Cover, Grazing and Season on Herbage Species Composition and Biomass: A Case Study of Yabello Rangeland, Southern Ethiopia[J]. Journal of Resources and Ecology, 2020, 11(2): 159

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