The ecological significance of baobab trees in the Savanna ecosystem is yet to be recognized despite its numerous socio-economic importance in the area. This study was conducted at Doba to investigate the impact of basal area of baobab trees on associated plant species diversity and their aboveground biomass. Purposive sampling technique was used to identify the various baobab aggregation regimes categorized into highly-clumped, moderately-clumped and the isolated stands. A design consisting of concentric circles (zones) in addition to plot sizes of 100 m x 100 m was used. All woody species (height ≥ 1.5 m) within the 100 m x 100 m plots were enumerated and also the non-woody species within the concentric zones nested within the larger plots were enumerated using 1 m2 quadrats. All trees/shrubs characteristics were measured. Also, the woody species biomass was determined by a non-destructive method while non-woody species biomass was determined by a destructive technique. The results showed that the mean height of the isolated, moderately-clumped and the highly-clumped baobab stands were 14.2 ± 2.20 m, 11.3 ± 1.06 m and 11.5 ± 0.81 m respectively. The results also indicated that the greatest mean woody species biomass was recorded at the highly-clumped baobab sites (4539.18±715.97 kg/ha) while the least was found at the isolated baobab stands (2497.36 ± 1088.87 kg/ha). Similarly, woody species diversity at the highly-clumped sites was the highest among the three sites. The mean biomass values of the non-woody species did not vary under the various baobab stands, however, their biomass under the various concentric zones differ significantly. Also, the non-woody species diversity showed that zone B (2.07 ± 0.36) under the highly-clumped stands was the most diverse area while zone C (1.24 ± 0.24) under the moderately-clumped stands was the least diverse zone. It is therefore recommended that baobabs are a potential nurse and/or facilitative plant for some species and should be managed and conserve on the parklands to realize its fullest potential.
Published in | Journal of Plant Sciences (Volume 1, Issue 4) |
DOI | 10.11648/j.jps.20130104.16 |
Page(s) | 81-91 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2013. Published by Science Publishing Group |
Aboveground biomass, Baobab, Doba, Highly-clumped, Isolated, Moderately-clumped
[1] | Affo, W. and Akande, S. S. (2011) Physico-chemical analysis of the fruit of Adansonia digitata (Baobab) in Ghana. Journal of the Ghana Science Association. Vol. 13. No. 2. 115-123 |
[2] | Akpo, L. E. (1997) Phenological interactions between trees and herbaceous vegetation of Sahelian semi-arid Savanna. Plant Ecology. 131: 241-248. |
[3] | Anderson, J. M and Ingram, J. S. L. (1998) Tropical Soil Biology and Soil Fertility. A handbook of methods. 2nd ed. Wallingford: CAS publishing. Pp 24-26 |
[4] | Baum, D. A. (1995) A systematic revision of Adansonia Bombacaceae. Annals of Missouri Botanical Gardens, 82: 440-470. |
[5] | Bayala, J., Teklehaimanot, Z., Ouedraogo, S. J. (2002) Millet production under pruned tree crowns in a parkland system in Burkina Faso. Agroforest Syst 54:203–214 |
[6] | Belsky, A. J., Amundson, R. G., Duxbury, J. M., Riha, S. J., Ali, A. R. and Mwonga, S. M. (1989) The effects of trees on their physical, chemical, and biological environments in a semi-arid savanna in Kenya: Journal of Applied Ecology 26:1005–1024 |
[7] | Blench, R (1999) Human culture and Savanna landscape of Northern Ghana. Working paper: Policies and partnerships for change |
[8] | Boffa, J. M. (1999) Agroforestry parklands in sub-Saharan Africa. FAO Conservation Guide 34. Rome, Italy |
[9] | Boukoungou, E. G., Djimde, M., Ayuk, E. T., Zoungrana, I. and Tchoundjea, Z. (1999) The market potential of parkland trees. Agroforestry Today 11, 13-15 |
[10] | Brookman-Amissah, J., Hall, J. B., and Swaine, M. D. (1980) A re-assessment of fire protection experiment in North-Eastern Ghana Savanna. Journal of Applied Ecology. 17, 85-99. |
[11] | Chadare, F. J. (2010) Baobab (Adansonia digitata. L) Food from Benin: Composition, processing and quality. Unpublished PhD thesis submitted to University of Wageningen. The Netherlands. |
[12] | Cox, G. W. (2002) General Ecology Laboratory Manual (8th ed) New York: McGraw-Hill Companies Inc. pp 311-312 |
[13] | Dovie, D. B. K., Witkowski, E. T. F. and Shackleton, C. M. (2008) Knowledge of plant resource use based on location, gender and generation. Applied Geography 28: 311-322 |
[14] | Gebauer, J., El-Siddiq, K. and Ebert, G, (2002) Baobab (Adansonia digitata): A review on a multipurpose tree with promising future in the Sudan. Verlag Engen Ulmer GmbH & co Stuggart. |
[15] | Grouzis, M. and Akpo, L. E. (1997) Influence of tree cover on herbaceous layer above and below ground phytomass in Sahelian zone. J. Arid Envir. 35: 285-296 |
[16] | Gruenwald, J., and Galizia, M. I. (2005) Market Brief in the European Union for selected natural ingredients derived from native species Adansonia digitata L. UNCTAD/Bio Trade Facilitation Program. P 7. |
[17] | Kangbeni, D., Kperkoumi, W., Marra, D., Martial, K., Yao, W., Fousseni, F., Komlan, B. and Koffi, A. (2014) Disturbance and Population Structure of Plant Communities in the Wildlife Reserve of Oti-Mandouri in Togo (W/Africa). Annual Research and Review in Biology. 4 (15): 2501-2516. |
[18] | Malimbwi, R. E., Misana, S., Monela, G. C., Jambiya, G. and Zahabu, E. (1994) Impact of charcoal extraction to the forest resources of Tanzania. Charcaol in Southern Africa (CHAPOSA) |
[19] | Medina, E. (1982) Physiological ecology of neotropical savanna plants. In: Huntley, B. J and Walker, B. W (eds). Ecology of Tropical Savannas. Berlin. Springer verlag. pp, B. J and Walker, B. W (eds). Ecology of Tropical Savannas. Berlin. Springer verlag. Pp 308-335. The Netherlands: |
[20] | Munzbergova, Z. and Ward, D. (2002) Acacia trees as keystone species in Negev desert ecosystems. Journal of Vegetation Science 13 : 227-236. |
[21] | Mwase, W. F., Bjomstand, A., Bokosi, J. M., Kwapata, M. B. and Stedje, B. (2007) The role of land tenure in conservation of tree and shrub species diversity in miombo woodlands of southern Malawi. New Forests 33: 297-307 |
[22] | Owen, J. (1974) A contribution to the ecology of the African baobab (Adansonia digitata) Savanna 3: 1-10 |
[23] | Peiler, E. (1994) Potentials and constraints of agroforestry in Northern Ghana on the example of farmed Parkland in the vicinity of NAES with special reference to the impact of Butyrospermum parkii and Parkia biglobosa GTZ. Unpublished. |
[24] | Purse-Glove, J. W. (1982) Tropical Crops: Dicotyledons. Longman Group Ltd, UK, ISBN 0582466660. Pbk. |
[25] | Rao, M. R., Nair, P. K., Ong, C .K. (1998) Biophysical interactions in tropical agroforestry systems. Agroforest Syst 38:3–50 |
[26] | Sanou, J., Bayala, J.,Teklehaimanot, Z. and Bazie, P. (2011) Effect of shading by baobab (Adansonia digitata) and nere (Parkia biglobosa) on yields of millet (Pennisetum glaucum) and taro (Colocasia esculenta) in parkland systems in Burkina Faso, West Africa. Springer Science. |
[27] | Scholes, R. and Archer, S. (1997) Tree-grass interactions in savannas, Annu. Rev. Ecol. Syst. 28: 517-544. |
[28] | Sidibe, M. and Willliams, J. T. (2002) Fruits for the future, Baobab, Adansonia digitata. L Chichester: RPM Reprographics. Pp 23-28 |
[29] | Skarpe, C. (1992) Dynamics of Savanna ecosystems. J. veget. Sci. 3: 293-300. doi: 10.2307/3235754 |
[30] | Southampton Centre for Underutilized Crops (2006) Baobab manual, field manual for extension workers and farmers, Univ. of Southampton. U.K |
[31] | Stijn, C., Bart, M., Christoph, K and Marc, J. J. J. (2000) Biomass estimation techniques for enclosures in a semi-arid area: a case study in Northern Ethiopia (Unpublished thesis). |
[32] | Tailor, C. J. (1960) Synecology and Silviculture in Ghana. Nelson. Edinburgh. |
[33] | Thierry, D. H., Romain, L. G. K., Achille, E. A., Valentin, K., Marcel, H., Rudiger, W. and Bruce, A. S. (2012) Change in the woody floristic composition, diversity and structure from protected to unprotected Savannahs in Pendjari Biosphere Reserve (Benin, W/Africa). Afr. J. Ecol. Blackwell publishing ltd. |
[34] | Vetaas, O. R. (1992) Micro-sites effects of trees and shrubs in dry seasons. Journal of Vegetation Science. 3: 337-344. |
APA Style
Abdul-Wahab Mbelayim Imoro, Victor Rex Barnes. (2013). Different Densities of Adansonia digitata. L. Trees: Structure and Impact on Neighbouring Flora in Northern Ghana. Journal of Plant Sciences, 1(4), 81-91. https://doi.org/10.11648/j.jps.20130104.16
ACS Style
Abdul-Wahab Mbelayim Imoro; Victor Rex Barnes. Different Densities of Adansonia digitata. L. Trees: Structure and Impact on Neighbouring Flora in Northern Ghana. J. Plant Sci. 2013, 1(4), 81-91. doi: 10.11648/j.jps.20130104.16
@article{10.11648/j.jps.20130104.16, author = {Abdul-Wahab Mbelayim Imoro and Victor Rex Barnes}, title = {Different Densities of Adansonia digitata. L. Trees: Structure and Impact on Neighbouring Flora in Northern Ghana}, journal = {Journal of Plant Sciences}, volume = {1}, number = {4}, pages = {81-91}, doi = {10.11648/j.jps.20130104.16}, url = {https://doi.org/10.11648/j.jps.20130104.16}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20130104.16}, abstract = {The ecological significance of baobab trees in the Savanna ecosystem is yet to be recognized despite its numerous socio-economic importance in the area. This study was conducted at Doba to investigate the impact of basal area of baobab trees on associated plant species diversity and their aboveground biomass. Purposive sampling technique was used to identify the various baobab aggregation regimes categorized into highly-clumped, moderately-clumped and the isolated stands. A design consisting of concentric circles (zones) in addition to plot sizes of 100 m x 100 m was used. All woody species (height ≥ 1.5 m) within the 100 m x 100 m plots were enumerated and also the non-woody species within the concentric zones nested within the larger plots were enumerated using 1 m2 quadrats. All trees/shrubs characteristics were measured. Also, the woody species biomass was determined by a non-destructive method while non-woody species biomass was determined by a destructive technique. The results showed that the mean height of the isolated, moderately-clumped and the highly-clumped baobab stands were 14.2 ± 2.20 m, 11.3 ± 1.06 m and 11.5 ± 0.81 m respectively. The results also indicated that the greatest mean woody species biomass was recorded at the highly-clumped baobab sites (4539.18±715.97 kg/ha) while the least was found at the isolated baobab stands (2497.36 ± 1088.87 kg/ha). Similarly, woody species diversity at the highly-clumped sites was the highest among the three sites. The mean biomass values of the non-woody species did not vary under the various baobab stands, however, their biomass under the various concentric zones differ significantly. Also, the non-woody species diversity showed that zone B (2.07 ± 0.36) under the highly-clumped stands was the most diverse area while zone C (1.24 ± 0.24) under the moderately-clumped stands was the least diverse zone. It is therefore recommended that baobabs are a potential nurse and/or facilitative plant for some species and should be managed and conserve on the parklands to realize its fullest potential.}, year = {2013} }
TY - JOUR T1 - Different Densities of Adansonia digitata. L. Trees: Structure and Impact on Neighbouring Flora in Northern Ghana AU - Abdul-Wahab Mbelayim Imoro AU - Victor Rex Barnes Y1 - 2013/12/30 PY - 2013 N1 - https://doi.org/10.11648/j.jps.20130104.16 DO - 10.11648/j.jps.20130104.16 T2 - Journal of Plant Sciences JF - Journal of Plant Sciences JO - Journal of Plant Sciences SP - 81 EP - 91 PB - Science Publishing Group SN - 2331-0731 UR - https://doi.org/10.11648/j.jps.20130104.16 AB - The ecological significance of baobab trees in the Savanna ecosystem is yet to be recognized despite its numerous socio-economic importance in the area. This study was conducted at Doba to investigate the impact of basal area of baobab trees on associated plant species diversity and their aboveground biomass. Purposive sampling technique was used to identify the various baobab aggregation regimes categorized into highly-clumped, moderately-clumped and the isolated stands. A design consisting of concentric circles (zones) in addition to plot sizes of 100 m x 100 m was used. All woody species (height ≥ 1.5 m) within the 100 m x 100 m plots were enumerated and also the non-woody species within the concentric zones nested within the larger plots were enumerated using 1 m2 quadrats. All trees/shrubs characteristics were measured. Also, the woody species biomass was determined by a non-destructive method while non-woody species biomass was determined by a destructive technique. The results showed that the mean height of the isolated, moderately-clumped and the highly-clumped baobab stands were 14.2 ± 2.20 m, 11.3 ± 1.06 m and 11.5 ± 0.81 m respectively. The results also indicated that the greatest mean woody species biomass was recorded at the highly-clumped baobab sites (4539.18±715.97 kg/ha) while the least was found at the isolated baobab stands (2497.36 ± 1088.87 kg/ha). Similarly, woody species diversity at the highly-clumped sites was the highest among the three sites. The mean biomass values of the non-woody species did not vary under the various baobab stands, however, their biomass under the various concentric zones differ significantly. Also, the non-woody species diversity showed that zone B (2.07 ± 0.36) under the highly-clumped stands was the most diverse area while zone C (1.24 ± 0.24) under the moderately-clumped stands was the least diverse zone. It is therefore recommended that baobabs are a potential nurse and/or facilitative plant for some species and should be managed and conserve on the parklands to realize its fullest potential. VL - 1 IS - 4 ER -