Assessing Grazing Impact on Arid and Semi Arid Rangelands in Kordofan Region
| Main Authors: | Yousif, Mohamed Zainelabdeen Hamed, Abdelrahman, Ahmed Khatir |
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| Format: | Article |
| Bahasa: | eng |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3446507 |
Daftar Isi:
- This study was conducted in Um "Nabag" (15km north of "Bara"), "Dilling" (160km south of "Elobeid") and "Eldemokya" (30km east of "Elobeid"). The objective was to assess the effect of grazing level on vegetation cover and frequency, and to assess its effect on biomass production and shoot/root ratio. The results showed different levels of grazing intensity at different sites as indicated by cover and shoot/ root ratio. More intensive grazing levels were found at Bara in the north, early and late in the rainy season but in Dilling it was not found in the late in the rainy season for both seasons (2008 and 2009) which indicated longer stay of herders in "Bara" area as a rainy season residence. The results also showed that, there was a decrease in cover percentage increase in bare soil with increased grazing intensity since it reached 70% and 67% for "Bara" and "Demokeya" at level II(>50%<75% grazed) grazing, indicating high possibility of erosion hazard and reflecting the impact of using rainy season residence intensively, subjecting the area to soil erosion hazards. There was drastic decrease in root/shoot ratio with increasing grazing intensity decreasing from 1:6 to 1:10 in (2008) from non grazed to level (I) (>50% grazed) grazing, and from 1:3 to 1:4 in (2009) from non grazed to level (I) grazing for "Bara" between early and late time of use.