Earticle

초록

영어

In Ethiopia, dry land vegetation including the fairly intact lowland and western escarpment woodlands occupy the largest vegetation resource of the country. These forests play a central role in environmental regulation and socio-economic assets, yet they received less scientific attention than the moist forests. This study evaluated the woody plant species composition, population structure and carbon sequestration potential of the A. senegal woodland across three distance gradients from the settlements. A total of 45 sample quadrants were laid along a systematically established nine parallel transect lines to collect vegetation and soil data across distance gradients from settlement. Mature tree dry biomass with DBH＞2.5 cm was estimated using allometric equations. A total of 41 woody plant species that belong to 20 families were recorded and A. senegal was the dominant species with 56.4 IVI value. Woody plant species diversity, density and richness were significantly higher in the distant plots compared to the nearest plots to settlement (p＜0.05). The cumulative DBH class distribution of all individuals had showed an interrupted inverted J-shape population pattern. There were 19 species without seedlings, 15 species without saplings and 14 species without both seedlings and saplings. A significant above ground carbon (5.3 to 12.7 ton ha-1), root carbon (1.6 to 3.6 ton ha-1), soil organic carbon (35.6 to 44.5 ton ha-1), total carbon stock (42.5 to 60.7 ton ha-1) and total carbon dioxide equivalent (157.7 to 222.8 ton ha-1) was observed consistently with an increasing of distance from settlement (p＜0.05). Distance from settlement had significant and positive correlation with species diversity and carbon stock at 0.64** and 0.78**. Disturbance intensity may directly influence the variation of species composition, richness and density along the A. senegal woodland. The sustainability of the A. senegal woodland needs urgent protection, conservation and restoration.

목차

Abstract
Introduction
Materials and Methods
Site description
Methods
Statistical analysis
Result and Discussion
Woody plant species composition
Dry biomass, carbon stock and carbon sequestration estimation
Correlation of distance gradient, woody species diversity and carbon stock
Conclusion
References

키워드

저자

• Emiru Birhane [ Department of Land Resources Management and Environmental Protection, Mekele University, Mekelle 231, Ethiopia, Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432 Ås, Norway ] Corresponding Author
• Hafte Gebreslassie [ Department of Land Resources Management and Environmental Protection, Mekele University, Mekelle 231, Ethiopia ]
• Kidane Giday [ Department of Land Resources Management and Environmental Protection, Mekele University, Mekelle 231, Ethiopia ]
• Sarah Teweldebirhan [ Department of Land Resources Management and Environmental Protection, Mekele University, Mekelle 231, Ethiopia ]
• Kiros Meles Hadgu [ World Agroforestry Centre (ICRAF), ILRI Campus, Addis Ababa 5689, Ethiopia ]

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