Bush thinning or clearing rangeland management practice in Borana rangelands considered to have a high potential to improve rangeland productivities and soil conditions, yet few studies have quantified the impacts of bush management on herbaceous plants species diversity, biomass and soil Organic Carbon and Nitrogen contents. This study was conducted in Yaballo (Hara-woyu Kebele) and Taltale (Sarite kebele) Woreda of Borana zone, to evaluate the impacts of bush management (thinning) on herbaceous plant species composition, diversity, biomass and some selected soil physicochemical properties. Data were collected from bush thinned and bush encroached rangeland management classes at both sites. Sampling plots were placed systematically along the geographic gradient in both of the rangeland management classes at both study sites. Within all plots, herbaceous plants were identified and clipped to the ground, collected and oven-dried to determine biomass. Herbaceous plant species, diversity, biomass and soil organic carbon contents and soil carbon stock were higher under Bush managed (thinned) class compared to bush encroached. However, bush management (thinning) have not shown considerable effects on soil bulk density, pH, nitrogen contents and total nitrogen stock. Thus, understory vegetation and soil organic carbon were influenced by the presence of thinning, but soil bulk density, pH, nitrogen contents were not influenced by thinning in this study. Generally, bush management (thinning) increased the rangeland condition, however; the management is not sustainable in case the thinning practice is not followed recommended procedures because most of the encroacher species are sprout more densely within a short time.
| Published in | Journal of Plant Sciences (Volume 9, Issue 2) |
| DOI | 10.11648/j.jps.20210902.12 |
| Page(s) | 38-45 |
| 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), 2021. Published by Science Publishing Group |
Bush Encroachment, Bush Thinned, Rangeland Management Class, Soil Organic Carbon Stock, Herbaceous Plant Diversity, Biomass, Soil Nitrogen Stock
| [1] | Francesco Accatino, Carlo de Michele, Renata Vezzoli, Davide Donzelli, Robert J. Scholes (2010). Tree-grass co-existence in savanna: Interactions of rain and fire. Journal of Theoretical Biology, 267 (2), pp. 235. doi: 10.1016/j.jtbi.2010.08.012. |
| [2] | Robin W, Siobhan M, Mark R (2000). Grassland Ecosystem. In pilot analysis of global ecosystems. Washington D. C. World Resources Institute. |
| [3] | Maestre FT, Bowker MA, Puche MD, Hinojosa MB, Martinez I, GarciaPalacios P, Castillo AP, Soliveres S, Luzuriaga AL, Sanchez AM, Carreira JA, Gallardo A and Escudero A (2009). Shrub encroachment can reverse desertification in semi-arid Mediterranean grasslands. Ecol. Lett. 12: 930-941. |
| [4] | Auken OV (2009). Causes and consequences of woody plant encroachment into western North American grasslands. J. Environ. Manage. 90: 2931-2942. |
| [5] | Eldridge DJ, Matthew AB, Fernando TM, Erin R, James F, Walter GW (2011). Impacts of shrub encroachment on ecosystem structure and functioning: towards a global synthesis. Ecol. Lett. 14 (7): 709-722. |
| [6] | Andela N, Liu YY, van Dij AIJM, de Jeu RAM, McVicar TR (2013). Global changes in dryland vegetation dynamics (1988–2008) assessed by satellite remote sensing: comparing a new passive microwave vegetation density record with reflective greenness data. Biogeosciences 10: 6657-6676. |
| [7] | Coppock D (1994). The Borana Plateau of Southern Ethiopia: Synthesis of Pastoral Research, Development and Changes 1980-1990. In: System Study No. 5. ILCA, 374 p. |
| [8] | Ayana A (2002). The effect of clearing bushes and shrubs on range condition in Borana, Ethiopia. Trop. Grass. 36: 69-76. |
| [9] | Gemedo D, Brigitte LM, Johannes I (2006). Encroachment of woody plants and its impact on pastoral livestock production in the Borana lowlands, southern Oromia, Ethiopia. Afr. J. Ecol. 44: 237-246. |
| [10] | Ayana A, Gufu O (2010). Effects of grazing pressure, the age of enclosures and seasonality on bush cover dynamics and vegetation composition in southern Ethiopia. J. Arid Environ. 74: 111-120. |
| [11] | Daniel Jeleta (2010). The extent of Bush Encroachment and Its Impacts on Selected Soil Properties in Borana Rangeland, Ethiopia. MSc. Thesis, Hawassa University Wonndo Genet College of Forestry and Natural Resources, Integrated Watershed Management. |
| [12] | Hasen YM (2013). The influence of land use and cover changes on the pastoral rangeland systems of southern Ethiopia - How much woody cover is enough? Ph.D. Thesis, University of Hohenheim. |
| [13] | Chuan Liao, Patrick E. Clark and Stephen D. DeGloria (2018). Bush encroachment dynamics and rangeland management implications in southern Ethiopia. Ecology and Evolution, 8: 11694–11703, DOI: 10.1002/ece3.4621. |
| [14] | Ayana A (2007). The Dynamics of Savanna Ecosystems and Management in Borana, Southern Ethiopia. Ph.D. Thesis, Norwegian University of Life Sciences, Department of International Environment and Development Studies, Ås, Norway. |
| [15] | Ayana, A., & Oba, G. (2007). Relating long-term rainfall variability to cattle population dynamics in communal rangelands and a government ranch in southern Ethiopia, 94, 715–725. https://doi.org/10.1016/j.agsy.2007.02.012. |
| [16] | Bikila N, Bedasa E, Samuel T, Barecha B, Jaldesa D, Nizam H (2014). Control of bush encroachment in Borana zone of southern Ethiopia: effects of different control techniques on rangeland vegetation and tick populations. Pastoralism 4: 18. |
| [17] | Bovey R. W. (2001). Woody plants and woody plant management. ecology, safety, and environmental impact. Marcel Dekker. Inc., New York. |
| [18] | Ayana A, Gufu O, Adunya T (2012). Bush Encroachment Control Demonstrations and Management Implications on Herbaceous Species in Savannas of Southern Ethiopia. Trop. Subtrop. Agroecosyst. 15: 173-185. |
| [19] | Archer, S. R., & Predick, K. I. (2014). An ecosystem services perspective on brush management: research priorities for competing land-use objectives, 1394–1407. |
| [20] | Friis IB, Demissew S, van Breugel P (2011). Atlas of Potential Vegetation of Ethiopia. Addis Ababa, Ethiopia: Addis Ababa University Press and Shama Books. |
| [21] | Blake G. R and Hartge K. H. (1986). Bulk Density. In K. (ed.), Methods of Soil Analysis, Part 1 America Society of Agronomy, Madison, pp 363-375. |
| [22] | Pearson T, Sarah W, Sandra B (2005). Sourcebook for Land-use, Landuse Change and Forestry Projects. Benoit Bosquet and Lasse Ringius. |
| [23] | Jackson M. L. (1967). Soil Chemical Analysis. New Delhi,: Prentice Hall of India Pvt. Ltd. |
| [24] | Reeuwijk Van L. P. (202). Procedures for Soil Analysis. Food and Agriculture Organization of United satate. International Soil reference and Infroramtion Centre, Wagenigen, Natherland. |
| [25] | Wairiu M. and Lal R. (2003). Soil organic carbon in relation to cultivation and topsoil removal on sloping lands of Kolombangara, Solomon Islands. Soil and Tillage Research, 70 (1), pp. 19-27. |
| [26] | Carter M. R. and Gregorich E. G. (2006). Soil Sampling and Methods of Analysis. (C. M. E. G, Ed.) CRC Press Taylor & Francis Group: Canadian Society of Soil Science. |
| [27] | Gemedo-Dalle T, Brigitte LM, Johannes I (2005). Plant Biodiversity and Ethnobotany of Borana Pastoralists in Southern Oromia, Ethiopia. Econ. Bot. 59 (1): 43-65. |
| [28] | Edwards S, Mesfin T, Hedberg I (1995). Flora of Ethiopia and Eritrea, Vol. 2 (2), the National Herbarium, Addis Ababa University: Addis Ababa and Department of Systematic Botany, Uppsala University, Uppsala. |
| [29] | Edwards S, Mesfin T, Sebsebe D, Hedberg I (2000). Flora of Ethiopia and Eritrea, Vol. 2 (1), the National Herbarium, Addis Ababa University: Addis Ababa and Department of Systematic Botany, Uppsala University, Uppsala. |
| [30] | Hammer Ø, Harper DAT, Ryan PD (2001). PAST: Paleontological Statistics Software Package for Education and Data Analysis. Palaeontologia Electronica 4 (1): 9. |
| [31] | Dirbaba, N. B., Denboba, M. A., & Tussie, G. D. (2014). Plant Diversity and Vegetation Structure in Encroached and Non-encroached Areas of Borana Rangelands: The Case of Hallona and Medhacho Pastoralist Associations, 4, 787–796. https://doi.org/10.17265/2161-6256/2014.09.010 |
| [32] | Gobelle, S. K., & Gure, A. (2018). Effects of bush encroachment on plant composition, diversity and carbon stock in Borana rangelands, 10 (May), 230–245. https://doi.org/10.5897/IJBC2017.1143 |
| [33] | Worku B and T/Yohannes B (2018) Effect of Post Bush Clearing Management Practice on Herbaceous Species Productivity and Soil Status of Rangelands in Hammer District of South Omo Zone. Journal of Biology, Agriculture and Healthcare, ISSN 2224-3208. |
| [34] | Haussmann, N. S., Kalwij, J. M., and Bezuidenhout, S. (2016). South African Journal of Botany Some ecological side-effects of chemical and physical bush clearing in a southern African rangeland ecosystem. South African Journal of Botany, 102, 234–239. https://doi.org/10.1016/j.sajb.2015.07.012 |
| [35] | Alford, A. L., Hellgren, E. C., and Engle, D. M. (2012). Experimental Tree Removal in Tallgrass Prairie : Variable Responses of Flora and Fauna along a Woody Cover Gradient, 22 (3). https://doi.org/10.1890/10-1288.1 |
| [36] | Smit, G. N. (2005). Tree thinning as an option to increase herbaceous yield of an encroached semi-arid savanna in South Africa, 15, 1–15. https://doi.org/10.1186/1472-6785-5-4 |
| [37] | Belay, T. A., and Moe, S. R. (2015). Assessing the Effects of Woody Plant Traits on Understory Herbaceous Cover in a Semiarid Rangeland. Environmental Management, 165–175. https://doi.org/10.1007/s00267-015-0491-3 |
| [38] | Raúl Ochoa-Hueso, Fernando T. Maestre, Asunción de los Ríos, Sergio Valea, Mark R. Theobald, Marta G. Vivanco, Esteban Manrique and Mathew A. Bowker (2013). Nitrogen deposition alters nitrogen cycling and reduces soil carbon content in low-productivity semiarid Mediterranean ecosystems. Environmental Pollution, 179, 185-193. |
| [39] | Sang-Hyun Lee, Seongjun Kim & Hyun-Jun Kim (2018) Effects of thinning intensity on understory vegetation in Chamaecyparisobtusa stands in South Korea, Forest Science and Technology, 14: 1, 7-15, DOI: 10.1080/21580103.2017.1409661. |
| [40] | Angula Nahas (2016). The Effect of Bush Clearing On Soil Properties, At Cheetah Conservation Fund Farm in Otjozondjupa Region, Namibia. A Thesis Submitted in Partial Fulfilment for the Degree of Master of Arts in Geography and Environmental Studies, University of Namibia, Kenya (unpublished). |
| [41] | Mokgotsi, R. O. (2018). Effects of bush encroachment control in a communal managed area in the Taung region, North West Province, South Africa. An MSc thesis (Botany), North-West University, Potchefstroom Campus, https://orcid.org/0000-0001-8975-0868. |
| [42] | Abule, E., Smit, G. N. and Snyman, H. A. (2005). The influence of woody plants and livestock grazing on grass species composition, yield and soil nutrients in the Middle Awash Valley of Ethiopia. Journal of Arid Environments, 60: 343-358. |
| [43] | Sankaran, M., Ratnam, J. & Hanan N. (2008). Woody cover in African savannas: the role of resources, fire and herbivory. Global Ecology & Biogeography, 17 (2): 236-245. |
| [44] | Lobe I, Amelung W, Du Preez CC (2001) Losses of soil carbon and nitrogen with prolonged arable cropping from sandy soils of the South African Highveld. Eur J Soil Sci 52: 939101. |
APA Style
Siraj Kelil Gobelle. (2021). Impacts of Bush Management on Herbaceous Plant Diversity and Biomass and, Soil Organic Carbon and Nitrogen in Borana Rangelands, Southern Ethiopia. Journal of Plant Sciences, 9(2), 38-45. https://doi.org/10.11648/j.jps.20210902.12
ACS Style
Siraj Kelil Gobelle. Impacts of Bush Management on Herbaceous Plant Diversity and Biomass and, Soil Organic Carbon and Nitrogen in Borana Rangelands, Southern Ethiopia. J. Plant Sci. 2021, 9(2), 38-45. doi: 10.11648/j.jps.20210902.12
AMA Style
Siraj Kelil Gobelle. Impacts of Bush Management on Herbaceous Plant Diversity and Biomass and, Soil Organic Carbon and Nitrogen in Borana Rangelands, Southern Ethiopia. J Plant Sci. 2021;9(2):38-45. doi: 10.11648/j.jps.20210902.12
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Download@article{10.11648/j.jps.20210902.12,
author = {Siraj Kelil Gobelle},
title = {Impacts of Bush Management on Herbaceous Plant Diversity and Biomass and, Soil Organic Carbon and Nitrogen in Borana Rangelands, Southern Ethiopia},
journal = {Journal of Plant Sciences},
volume = {9},
number = {2},
pages = {38-45},
doi = {10.11648/j.jps.20210902.12},
url = {https://doi.org/10.11648/j.jps.20210902.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20210902.12},
abstract = {Bush thinning or clearing rangeland management practice in Borana rangelands considered to have a high potential to improve rangeland productivities and soil conditions, yet few studies have quantified the impacts of bush management on herbaceous plants species diversity, biomass and soil Organic Carbon and Nitrogen contents. This study was conducted in Yaballo (Hara-woyu Kebele) and Taltale (Sarite kebele) Woreda of Borana zone, to evaluate the impacts of bush management (thinning) on herbaceous plant species composition, diversity, biomass and some selected soil physicochemical properties. Data were collected from bush thinned and bush encroached rangeland management classes at both sites. Sampling plots were placed systematically along the geographic gradient in both of the rangeland management classes at both study sites. Within all plots, herbaceous plants were identified and clipped to the ground, collected and oven-dried to determine biomass. Herbaceous plant species, diversity, biomass and soil organic carbon contents and soil carbon stock were higher under Bush managed (thinned) class compared to bush encroached. However, bush management (thinning) have not shown considerable effects on soil bulk density, pH, nitrogen contents and total nitrogen stock. Thus, understory vegetation and soil organic carbon were influenced by the presence of thinning, but soil bulk density, pH, nitrogen contents were not influenced by thinning in this study. Generally, bush management (thinning) increased the rangeland condition, however; the management is not sustainable in case the thinning practice is not followed recommended procedures because most of the encroacher species are sprout more densely within a short time.},
year = {2021}
}
TY - JOUR T1 - Impacts of Bush Management on Herbaceous Plant Diversity and Biomass and, Soil Organic Carbon and Nitrogen in Borana Rangelands, Southern Ethiopia AU - Siraj Kelil Gobelle Y1 - 2021/04/23 PY - 2021 N1 - https://doi.org/10.11648/j.jps.20210902.12 DO - 10.11648/j.jps.20210902.12 T2 - Journal of Plant Sciences JF - Journal of Plant Sciences JO - Journal of Plant Sciences SP - 38 EP - 45 PB - Science Publishing Group SN - 2331-0731 UR - https://doi.org/10.11648/j.jps.20210902.12 AB - Bush thinning or clearing rangeland management practice in Borana rangelands considered to have a high potential to improve rangeland productivities and soil conditions, yet few studies have quantified the impacts of bush management on herbaceous plants species diversity, biomass and soil Organic Carbon and Nitrogen contents. This study was conducted in Yaballo (Hara-woyu Kebele) and Taltale (Sarite kebele) Woreda of Borana zone, to evaluate the impacts of bush management (thinning) on herbaceous plant species composition, diversity, biomass and some selected soil physicochemical properties. Data were collected from bush thinned and bush encroached rangeland management classes at both sites. Sampling plots were placed systematically along the geographic gradient in both of the rangeland management classes at both study sites. Within all plots, herbaceous plants were identified and clipped to the ground, collected and oven-dried to determine biomass. Herbaceous plant species, diversity, biomass and soil organic carbon contents and soil carbon stock were higher under Bush managed (thinned) class compared to bush encroached. However, bush management (thinning) have not shown considerable effects on soil bulk density, pH, nitrogen contents and total nitrogen stock. Thus, understory vegetation and soil organic carbon were influenced by the presence of thinning, but soil bulk density, pH, nitrogen contents were not influenced by thinning in this study. Generally, bush management (thinning) increased the rangeland condition, however; the management is not sustainable in case the thinning practice is not followed recommended procedures because most of the encroacher species are sprout more densely within a short time. VL - 9 IS - 2 ER -
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