Earticle

초록

영어

The study aims to assess composition, diversity and population indices of natural regeneration of woody species in Jebel El Gerrie forest reserve, Blue Nile State, Sudan. We conducted field work between December 2018 and January 2019. We used random sampling to collect vegetation data in the forest where we made a total of 90 circular sample plots (radius 17.84 m) and distributed them proportionally to the area of each of the four density-based vegetation classes of the forest i.e. high density (C1), medium density (C2), low density (C3) and crop land (C4). In each sample plot we identified all regenerating tree species and counted their regeneration frequencies. We calculated ecological metrics of regeneration frequency, density, abundance, richness, evenness, diversity and importance value index (IVI) and drew abundance rank curve. Results revealed that out of fifteen mature tree species present, natural regeneration of 8 species, which belong to 6 families, was observed. The relatively most frequently naturally regenerating and abundant species were Anogeissus leiocarpa and Combretum hartmannianum. Richness, evenness and diversity of regenerating species were 1.33, 0.82 and 1.7, respectively. One-way ANOVA (=0.05) of mean regeneration densities disclosed that there were significant differences (F3,86=16.77, p=0.000) between C2 & C3 (p=0.000) and C2 & C4 (p=0.000). While regeneration of seven tree species were absent, two, two and four species were of good, poor and fair regeneration status, respectively. A comparison of mean density of natural regeneration with that of parent trees reflects a poor regeneration status of the forest. The study provides empirical results on the regeneration status of species and signifies the need for management interventions for species conservation and restoration, maintenance of biodiversity and sustainable production.

목차

Abstract
Introduction
Materials and Methods
Location and description of the study area
Field survey
Diversity indices of natural regeneration of tree species
Natural regeneration percentage and status
Variation of natural regeneration of species between vegetation classes
Results
Diversity indices of natural regeneration of tree species
Natural regeneration percentage and status
Variation of natural regeneration of species between vegetation classes
Discussion
Diversity indices of natural regeneration of tree species
Natural regeneration percentage and status
Variation of natural regeneration of species between vegetation classes
Conclusion
Acknowledgements
References

키워드

저자

• Ahmed Ibrahim Abuelbashar [ Agricultural Research Corporation, Forest Research and Gum Arabic Centre, Khartoum-Soba 11111, Sudan ]
• Dafa-Alla Mohamed Dafa-Alla Ahmed [ University of Khartoum, Faculty of Forestry-Shambat, Khartoum 13314, Sudan ] Corresponding Author
• Ahmed Ali Hassabelkreem Siddig [ University of Khartoum, Faculty of Forestry-Shambat, Khartoum 13314, Sudan ]
• Yousif ElnourYagoub [ University of Khartoum, Faculty of Forestry-Shambat, Khartoum 13314, Sudan ]
• Haithum Hashim Gibreel [ University of Khartoum, Faculty of Forestry-Shambat, Khartoum 13314, Sudan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634