Seasonal Papyrus Biomass Harvesting Patterns and its Implications on Productivity in Nyando Floodplain Wetland, Lake Victoria Basin, Kenya
Papyrus production not only maintains the structure and function of the wetland but also meets the needs of the surrounding communities who rely on them directly. Seasonal changes in rainfall patterns has influenced the productivity of Nyando wetland yet there is need to understand the influence of such changing conditions on the provisioning services. Although there have been studies done in these wetlands, there is inadequate understanding on the implication of biomass harvesting on the growth attributes of the papyrus plant in the face of changing seasons. This study focused on Nyando floodplain wetland located in the Eastern part of the shores of Lake Victoria which is a lifeline to many rural communities living around the lake. Papyrus biomass harvesting patterns were assessed in two study sites of Nyando wetland and at different seasons in order to determine its implication on papyrus productivity. Participatory tools, field survey, interviews, observation, field measurements and laboratory measurements were used. The results show the area harvested was different between sites and between seasons in Wasare (107.9 ± 2.7 m2) dry and wet season (88.8 ± 3.1 m2). Biomass and height were critical growth attributes that were affected by harvesting frequency and changes in rainfall patterns. Understanding harvesting patterns is important for planning and management of wetland ecosystem so as to continue providing materials while maintaining the structure and function of the wetland.
Barducci, A., Gizzi, D., Marcoionni, P. & Pippi, I. (2009). Aerospace wetland monitoring by hyperspectral imaging sensors: A case study in the coastal zone of San Rossore Natural Park. Journal of Environmental Management, 90(7), 2278 – 2286.
Boar, R. R. (2006). Responses of a fringing Cyperus papyrus L. swamp to changes in water level. Aquatic Botany, 84, 85-92.
Cerutti, P. O., Sola, P. & Chenevoy, A. (2015). The socio-economic and environmental impacts of wood energy value chains in Sub-Saharan Africa: A systematic map protocol. Environmental Evidence, 4, 12.
Gichuki, J., Guebas, F. D., Mugo, J., Rabuor, C. O., Triest, L. & Dehairs, F. (2001). Species inventory and the local uses of the plants and fishes of the Lower Sondu Miriu wetland of Lake Victoria, Kenya. Hydrobiologia, 458, 99-106.
Harper, D. M. & Mavuti, K. M. (2004). Lake Naivasha Kenya: Ecohydrology to guide the management of a tropical protected area. Ecohydrology and Hydrobiology, 4, 287-305.
Kansiime, F., Saunders, M. & Loiselle, S. (2007). Functioning and dynamics of wetland vegetation of Lake Victoria: An overview. Wetlands Ecology and Management, 15(6), 443-451.
Kiwango, Y. A. & Wolanski, E. (2008). Papyrus wetlands, nutrients balance, fisheries collapse, food security, and Lake Victoria level decline in 2000-2006. Wetlands Ecology and Management, 16, 89-96.
Khisa, P. S., Uhlenbrook, S., van Dam, A. A., Wenninger, J., van Griensven, A. & Abira, M. (2013). Ecohydrological Characterization of the Nyando wetland, Lake Victoria: A State of System (SOS) Analysis. African Journal of Environmental Science and Technology, 7(6), 417-434.
MEA (Millenium Ecposystem Assessment). (2005). Ecosystems and human-wellbeing: Wetlands and water synthesis. Washington, DC, USA: World Resources Institute.
Morrison, E. H. J., Upton, C., Odhiambo-K’Oyooh, K. & Harper, D. M. (2012). Managing the natural capital of papyrus within riparian zones of Lake Victoria, Kenya Hydrobiology, 692, 5-17.
Mnaya, B., Asaeda, T., Kiwango, Y. & Ayubu, E. (2007). Primary production in papyrus (Cyperus payrus L.) of Rubondo Island, Lake Victoria, Tanzania. Wetlands Ecology and Management, 15, 269 – 275.
Obiero, K. O., Raburu, P. O., Okeyo-Owuor, J. B. & Raburu, E. A. (2012). Community perceptions on the impact of the recession of Lake Victoria water on Nyando wetlands. Science Research Essays, 7(16), 1647-1661.
Osborne, P. L. (2012). Tropical Ecosystems and Ecological Concepts. Cambridge: Cambridge University Press.
Osumba, J. J. L., Okeyo-Owuor, J. B. & Raburu, P. O. (2010). Effect of harvesting on temporal papyrus (Cyperus papyrus) biomass regeneration potential among swamps in Winam Gulf wetlands of Lake Victoria Basin, Kenya. Wetlands Ecology and Managent, 18(3), 333-341.
Pal, S., Chattopadhyay, B. & Mukhopadhyay, S. K. (2016). Spatio-temporal study of carbon sequestration through piscicultural practice at East Kolkata wetland. Journal of Environmental Biology, 37(5), 965-971.
R Core Team. (2015). R: A language and environment for statistical computing. Vienna: R Foundation for Statistical Computing.
Rongoei, P. J. K., Kipkemboi, J., Okeyo-Owuor, J. B. & van Dam, A. A. (2013). Ecosystem services and drivers of change in Nyando flood plain wetland, Kenya. African Journal of Environmental Science and Technology, 7, 274-291
Rongoei, P. J. K., Kipkemboi, J., Kariuki, S. T. & van Dam, A. A. (2014). Effects of water depth and livelihood activities on plant species composition and diversity in Nyando floodplain wetland, Kenya. Wetlands Ecology and Management, 22, 77-189.
Rongoei, P. J. K. & Outa, N. O. (2016). Cyperus papyrus L. growth rate and mortality in relation to water quantity, quality and soil characteristics in Nyando floodplain wetland, Kenya. Open Journal of Ecology, 6, 714-735.
Silvan, N. & Vasander, H. L. (2004). Vegetation is the main factor in nutrient retention in a constructed wetland buffer. Plant and Soil, 258, 179-187.
TEEB. (2010). The economics of ecosystems and biodiversity: Mainstreaming the economics of nature: A synthesis of the approach, conclusions and recommendations of TEEB. Nairobi: United Nations Environment Program.
Terer, T., Triest, L. & Muthama, M. A. (2012). Effects of harvesting Cyperus papyrus in undisturbed wetland, Lake Naivasha, Kenya. Hydrobiologia, 680(1), 135-148.
Van Dam, A. A., Kipkemboi, J., Rahman, M.M. & Gettel, G. M. (2013). Linking hydrology, ecosystem function anmd livelihood outcomes in Afrcan papyrus wetland s using a Bayesian Network model. Wetlands, 33, 381 -397.
van Dam, A., Kipkemboi, J., Zaal, F. & Okeyo-Owuor, J. (2011). The ecology The ecology of livelihoods in East African papyrus wetlands (ECOLIVE). Review Environtal Science and Biotechnology, 10, 291-300.
Verhhoeven, J. T. A. & Setter, T. L. (2009). Agricultural use of wetlands: opportunities and limitations. Annals of Botany, 1-9. Doi:10.1093/aob/mcp172.
World Agroforestry Centre. (2006). Improved land management in the Lake Victoria basin: Final report on the TransVic project. Nairobi: World Agroforestry Centre.
World Agroforestry Centre. (2012). Lake Victoria Basin
http://www.worldagroforestrycentre.org/newwebsite/sites Accessed 21st January 2019.
- There are currently no refbacks.