PN17 - IWRM Improved Rural Livelihoods
Permanent URI for this collectionhttps://hdl.handle.net/10568/21233
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Item Sensitivity and uncertainty propagation in coupled models for assessing smallholder farmer food security in the Olifants River Basins, South Africa(Journal Article, 2014-07) Magombeyi, Manuel Simba; Taigbenu, A.E.Using family balance (i.e., combined net farm and non-farm incomes less family expenses), an output from an integrated model, which couples water resource, agronomic and socio-economic models, its sensitivity and uncertainty are evaluated for five smallholder farming groups (AeE) in the Olifants Basin. The crop management practiced included conventional rainfed, untied ridges, planting basins and supplemental irrigation. Scatter plots inferred the most sensitive variables affecting family balance, while the Monte Carlo method, using random sampling, was used to propagate the uncertainty in the model inputs to produce family balance probability distributions. A non-linear correlation between in-season rainfall and family balance arises from several factors that affect crop yield, indicating the complexity of farm family finance resource-base in relation to climate, crop management practices and environ- mental resources of soil and water. Stronger relationships between family balance and evapotranspira- tion than with in-season rainfall were obtained. Sensitivity analysis results suggest more targeted investment effort in data monitoring of yield, in-season rainfall, supplemental irrigation and maize price to reduce family balance uncertainty that varied from 42% to 54% at 90% confidence level. While sup- plemental irrigation offers the most marginal increase in yields, its wide adoption is limited by avail- ability of water and infrastructure cost.Item Water resources management in agriculture: Convergence of needs and opportunities(Conference Paper, 2005) Taigbenu, A.E.; Ncube, M.; Boroto, R.J.Item Storing and sharing water in sand rivers: A water balance modelling approach(Conference Paper, 2009) Love, David; Zaag, P. van der; Uhlenbrock, SilkeItem The challenge of integrated water resource management for improved rural livelihoods in the Limpopo Basin: An introduction to WaterNet’s first network research program(Conference Paper, 2004) Love, David; Jonker,L.; Rockström, Johan; Zaag, P. van der; Twomlow, StephenItem The political social and economic context of changing water policy in South Africa post-1994(Book Chapter, 2010) van Koppen, Barbara; Schreiner, B.; Fakir, S.Item Risk posed by dissolved Cadmium in the transboundary Limpopo Basin(Brief, 2009) Chilundo, M.; Love, David; Meck, M.Item Rainwater management for drought mitigation in semi-arid smallholder cropping systems(Conference Paper, 2009) Mupangwa, W.; Walker, S.Item Quantifying water productivity in rainfed cropping systems in Limpopo Province RSA(Conference Paper, 2008) Dimes, John P.; Toit, P. duItem Community-based water law and water resource management reform in developing countries(Book, 2008) van Koppen, Barbara; Giordano, Mark; Butterworth, JohnItem Alluvial aquifers as potential safe water storage in semi arid areas: Case study of Lower Mzingwane Catchment Limpopo Basin Zimbabwe(Conference Paper, 2006) Moyce, W.; Mangeya, P.; Owen, R.; Love, DavidItem Report on agricultural surveys Upper Limpopo Mabalane District Mozambique(Working Paper, 2009) Brito, R.; Munguambe, Paiva; Ibraimo, N.; Julaia, C.; Nhamatate, A.Item Short Report on Masters research in the Mzingwane Catchment Zimbabwe 2004/5 – 2005/6(Working Paper, 2006) Love, DavidItem Profile of the Limpopo Basin in Mozambique(Working Paper, 2009) Brito, R.; Famba, S. P.; Munguambe, Paiva; Ibraimo, N.; Julaia, C.Item Application of the water evaluation and planning (WEAP) Model to assess future water demands and resources in the Olifants Catchment South Africa(Working Paper, 2007) Arranz, Roberto; McCartney, Matthew P.Item Short Report on Doctoral research within WaterNet Challenge Program Project PN17(Working Paper, 2006) Love, David; Nyabeze, W.Item Short Report on Masters research cofunded by RELMA-in-ICRAF in the Mzingwane Catchment Zimbabwe 2004/5(Working Paper, 2006) Love, DavidItem Short Report on Masters research in progress in the Mzingwane Catchment Zimbabwe 2006/7(Working Paper, 2006) Love, DavidItem Report on agricultural surveys lower Limpopo Xai-Xai and Bilene Districts Mozambique(Working Paper, 2009) Brito, R.; Munguambe, Paiva; Julaia, C.; Nhamatate A.