Comparative Carbon Stock Potential of Indigenous Agroforestry Systems in Silte Wereda, Southern Ethiopia
Abstract
Agroforestry system (AFS) is described as one of the promising mitigation options for climate change through its high carbon sequestration capacity. This study was conducted in Silite District; Southern Ethiopia to assess the unaccounted carbon stock potential of selected traditional agroforestry systems. The study assessed the carbon stock potential of AFS biomass and soil carbon pools. Biomass and soil samples were taken from temporary plots laid for this study, 20 × 20 m for home garden, 50 × 100 m for parkland, and 10 × 10 m for woodlot AFS. Height (H) and diameter at breast height (DBH) were taken from the sample plots to estimate biomass carbon. Litter, herb, and grass samples were collected from 1 m2 quadrant within the main plot. The findings show that the total biomass carbon ranged from (1.28-7 Mg ha -1) though there was no significant difference among the systems and higher biomass carbon was attributed by parkland AFS while the lowest was woodlot. A significantly higher amount of SOC was recorded in home garden AFS along the two depths (82.5 Mg ha -1) than the other two systems and the lowest was attributed to parkland (41.7 Mg ha -1). Therefore, this traditional AFS should be supported for their contributions in climate change mitigation schemes as they can sequester a reasonable amount of carbon
Downloads
References
Albrecht A, K and Kandji, S.T. (2003), “Carbon sequestration in tropical agroforestry systems”, Agriculture, ecosystems & environment, 99(1-3), pp.15-27. http://doi.org/10.1016/so167-8809(03)38-5.
Bajigo A., Tadesse M., Moges Y., Anjulo A. (2015), Estimation of carbon stored in agroforestry practices in Gununo watershed, Wolayitta zone, Ethiopia. Journal of Ecosystem and Ecography, 5: 1000157. http://doi.org/ 10.4172/2157-7625.1000157.
Brakas, S. G., Aune, J.B. (2011), “Biomass and Carbon Accumulation in Land Use Systems of Claveria, the Philippines”. In: Kumar, B., Nair, P. (eds) Carbon Sequestration Potential of Agroforestry Systems. Advances in Agroforestry, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1630-8_9
Chaiyo, U., Garivait, S., & Wanthongchai, K. (2011). Carbon storage in above-ground biomass of tropical deciduous forest in Ratchaburi Province, Thailand. World Academy of Science, Engineering and Technology, 58, 636-641.
Chave, J., Condit, R., Aguilar, S., Hernandez, A., Lao, S. and Perez, R., 2004. Error propagation and scaling for tropical forest biomass estimates. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 359(1443), pp.409-420. http://doi.org/ 10.10098/rstb.2003.1425/.
Chen, X. B., Zheng, H., Zhang, W., He, X. Y., Li, L., Wu, J. S., ... & Su, Y. R. (2014). Effects of land cover on soil organic carbon stock in a karst landscape with discontinuous soil distribution. Journal of mountain science, 11, 774-781. http://doi.org/ 10.1007/s11629-013-2843.
Dixon, R. K. (1995). Agroforestry systems: sources of sinks of greenhouse gases? Agroforestry systems, 31, 99-116.
Gebresamuel, G., Singh, B. R., & Dick, Ø. (2010). Land-use changes and their impacts on soil degradation and surface runoff of two catchments of Northern Ethiopia. Acta Agriculturae Scandinavica Section B–Soil and Plant Science, 60(3), 211-226. http://doi.org/ 10.1080/090647109002821741.
Gelaw, A. M., Singh, B. R., & Lal, R. (2014). Soil organic carbon and total nitrogen stocks under different land uses in a semi-arid watershed in Tigray, Northern Ethiopia. Agriculture, ecosystems & environment, 188, 256-263. http://doi.org/ 10.1016/j.agee.2014.02.035.
Heede, R., & Oreskes, N. (2016). Potential emissions of CO2 and methane from proved reserves of fossil fuels: An alternative analysis. Global Environmental Change, 36, 12- 20. http://doi.org/ 10.1016/j.gloenvcha.2015.10.005.
Henry M, Tittonell P, Manlay RJ, Bernoux M, Albrecht A, Vanlauwe B (2009) Biodiversity, carbon stocks and sequestration potential in aboveground biomass in smallholder farming systems of western Kenya. Agric Ecosyst Environ 129:238– 252. http://doi.org/10.1016/j.agee .2008. 09.006.
Houghton, R.A., 2012. Carbon emissions and the drivers of deforestation and forest degradation in the tropics. Current Opinion in Environmental Sustainability, 4(6), pp.597-603.
IPCC 2000. Land use, land-use change, and forestry. Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK.
Islam, K.R., and Weil, R.R. (2000). Land use effect on soil quality in a tropical forest ecosystem of Bangladesh. Agric. Ecosyst. Environ. 79: 9–16. http://doi.org/10. 10.1010/s0167-8809(99)00145-0
Jandl, R., Lindner, M., Vesterdal, L., Bauwens, B., Baritz, R., Hagedorn, F., & Byrne, K. A. (2007). How strongly canforest management influence soil carbon sequestration? Geoderma, 137(3- 4),253- 268. http://doi.org/10.1016/j.geoderma.2006.09.003
Kumar, B. M. (2011). Species richness and aboveground carbon stocks in the homegardens of central Kerala, India. Agriculture, ecosystems & environment, 140(3-4), 430-440. http:/doi.org//10.1016/j.agee.2011.01.006.
Kumar, B.M. and Nair, P.R. eds., 2011. Carbon sequestration potential of agroforestry systems: opportunities and challenges.
Kuyah, S., Dietz, J., Muthuri, C., Jamnadass, R., Mwangi, P., Coe, R., & Neufeldt, H. (2012b). Allometric equations for estimating biomass in agricultural landscapes: II. Belowground biomass. Agriculture, Ecosystems & Environment, 158,225-234. http:/doi.org//10.1016/j.agee. 2012.05.010
Laganiere, J., Angers, D. A., & Pare, D. (2010). Carbon accumulation in agricultural soils after afforestation: a meta‐analysis. Global change biology, 16(1), 439- 453. http:/doi.org//10.1111/j.1365.2486.2009.01930.x
Lal, R., 2005. Forest soils and carbon sequestration. Forest ecology and management, 220(1-3), pp.242-258.
Lal, S.H., Bajracharya, R.M., and Sitaula, B.K. (2012). Forest and Soil Carbon Stocks, Pools and Dynamics and Potential Climate Change Mitigation in Nepal, 1, 800–811. Formerly part of Journal of Environmental Science and Engineering. ISSN 1934-8932.
Lemenih, M., Karltun, E., & Olsson, M. (2005). Soil organic matter dynamics after deforestation along a farm field chronosequence in southern highlands of Ethiopia. Agriculture, ecosystems & environment, 109(1-2), 9-19. http:/doi.org/10.1016/j.agee.2005.02.015
Lorenz, K., & Lal, R. (2014). Soil organic carbon sequestration in agroforestry systems. A review. Agronomy for Sustainable Development, 34, 443-454.
Mbow, C., Chhin, S., Sambou, B. and Skole, D., 2013. Potential of dendrochronology to assess annual rates of biomass productivity in savanna trees of West Africa. Dendrochronologia, 31(1), pp.41-51.
Meersmans, J., Van Wesemael, B., & Van Molle, M. (2009). Determining soil organic carbon for agricultural soils: a comparison between the Walkley & Black and the dry combustion methods (north Belgium). Soil Use and Management, 25(4), 346-353. http:/doi.org/10.1111/j.1475-2743.2009.0024.
Montagu, K.D., Düttmer, K., Barton, C.V.M. and Cowie, A.L., 2005. Developing general allometric relationships for regional estimates of carbon sequestration—an example using Eucalyptus pilularis from seven contrasting sites. Forest Ecology and Management, 204(1), pp.115-129.
Mosquera-Losada, M. R., Freese, D., & Rigueiro-Rodríguez, A. (2011). Carbon sequestration in European agroforestry systems. carbon sequestration potential of agroforestry systems: opportunities and challenges, 43-59. http:/doi.org//10.1007/978-94-007-1630-8_3.
Nair PKR (2012) Carbon sequestration studies in agroforestry systems: a reality-check. Agroforest Syst 86:243–253. http:/doi.org/10.1007/s10457-011-9434-z.
Nair, P. R., Rao, M. R., & Buck, L. E. (Eds.). (2004). New Vistas in Agroforestry: A Compendium for 1st World Congress of Agroforestry, 2004 (Vol. 1). Springer Science & Business Media. ISNB-1-4020-2501-7
Negash, M., & Starr, M. (2015). Biomass and soil carbon stocks of indigenous agroforestry systems on the south-eastern Rift Valley escarpment, Ethiopia. Plant and soil, 393, 95-107. http:/doi.org/10.10007/S11104-015-2469-6.
Negash, M., Starr, M., Kanninen, M., & Berhe, L. (2013). Allometric equations for estimating aboveground biomass of Coffea arabica L. grown in the Rift Valley escarpment of Ethiopia. Agroforestry systems, 87(4), 953-966.
Nikiema, A., 2005. Agroforestry parkland species diversity: uses and management in semi-arid West-Africa (Burkina Faso). Wageningen University and Research.
Paudel, G.S. and Thapa, G.B., 2001. Changing farmers' land management practices in the hills of Nepal. Environmental Management, 28, pp.789-803.
Pearson, T., Walker, S., & Brown, S. (2013). Sourcebook for land use, land-use change and forestry projects. http:/doi.org/hgl.handle.net/10986/16491.
Rizvi, R.H., Newaj, R., Chaturvedi, O.P., Prasad, R., Handa, A.K. and Alam, B., 2019. Carbon sequestration and CO 2 absorption by agroforestry systems: An assessment for Central Plateau and Hill region of India. Journal of Earth System Science, 128(3), p.56.
Roshetko, J. M., Delaney, M., Hairiah, K., & Purnomosidhi, P. (2002). Carbon stocks in Indonesian homegarden systems: Can smallholder systems be targeted for increased carbon storage? American Journal of Alternative Agriculture, 17(3), 138-148. http:/doi.org/10.1079/ajaa200116.
Schlesinger, W.H. and Andrews, J.A., 2000. Soil respiration and the global carbon cycle. Biogeochemistry, 48, pp.7-20.
Steffan-Dewenter, I., Kessler, M., Barkmann, J., Bos, M. M., Buchori, D., Erasmi, S.,& Tscharntke, T. (2007). Tradeoffs between income, biodiversity, and ecosystem functioning during tropical rainforest conversion and agroforestry intensification. Proceedings of the National Academy of Sciences, 104(12), 4973-4978. http:/doi.org/10.1073/pnas.0608409104.
Takimoto, A., Nair, P.R. and Nair, V.D., 2008. Carbon stock and sequestration potential of traditional and improved agroforestry systems in the West African Sahel. Agriculture, ecosystems & environment, 125(1-4), pp.159-166.
Tolera, M., Asfaw, Z., Lemenih, M. and Karltun, E., 2008. Woody species diversity in a changing landscape in the south-central highlands of Ethiopia. Agriculture, ecosystems & environment, 128(1-2), pp.52-58.
Tolera, M., Asfaw, Z., Lemenih, M., & Karltun, E. (2008). Woody species diversity in a changing landscape in the south-central highlands of Ethiopia. Agriculture, ecosystems & environment, 128(1-2), 52-58. http:/doi.org//10.1016/j.agee.2008.05.001.
Wolle, H. S., Barberi, P., & Carlesi, S. (2021). Effect of home garden and parkland agroforestry practices in ethiopia on selected soil properties. African Journal of Food, Agriculture, Nutrition and Development, 21(5),18115-18130. http:/doi.org/10.18697/ajfand.100.19220.
Xu, X., Shi, Z., Li, D., Rey, A., Ruan, H., Craine, J. M., ... & Luo, Y. (2016). Soil properties control decomposition of soil organic carbon: Results from data-assimilation analysis. Geoderma, 262, 235- 242. http:/doi.org/10.1016/j.geoderma.2015.08.038.
Copyright (c) 2024 Mihert Semere, Chala Tadesse, Tesemash Abebe, Abirham Cherinet, Marta Gebreyesus
This work is licensed under a Creative Commons Attribution 4.0 International License.
