[1] SADC (2011) Climate Change Adaptation in SADC: A Strategy for the Water Sector. SADC Secretariat, Gaborone, Botswana, 40 p.
[2] Meehl, G.A., Stocker, T.F., Collins, W.D., Friedlingstein, P., Gaye, A.T., Gregory, J.M., Kitoh, A., Knutti, R., Murphy, J.M., Noda, A., Raper, S.C.B., Watterson, I.G., Weaver, A.J. and Zhao, Z.-C. (2007) Global Climate Projections. In: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K.B., Tignor, M. and Miller, H.L., Eds., Climate Change 2007: The Physical Science Basis, Contribution of: Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, 747-846.
[3] Davidson, O., Halsne, S.K., Huq, S., Kok, M., Metz, B., Sokona, Y. and Verhagen, J. (2003) The Development and Climate Nexus: The Case of Sub-Saharan Africa. Climate Policy, 3, S97-S113.
http://dx.doi.org/10.1016/j.clipol.2003.10.007
[4] Reich, P.F., Numben, S.T., Almaraz, R. and Eswaran, H. (2001) Land Resources Stress and Desertification in Africa. Agro-Science, 2, 1-10.
[5] Richard, Y., Fauchereau, N., Poccard, I., Rouault, M. and Trzaska, S. (2001) 20th Century Droughts in Southern Africa: Spatial and Temporal Variability, Teleconnections with Oceanic and Atmospheric Conditions. International Journal of Climatology, 21, 873-885.
http://dx.doi.org/10.1002/joc.656
[6] New, M., Hewitson, B., Stephenson, D.B., Tsiga, A., Kruger, A., Manhique, A., Gomez, B., Coelho, C.A.S., Masisi, D.N. and Kululanga, E. (2006) Evidence of Trends in Daily Climate Extremes over Southern and West Africa. Journal of Geophysical Research, 111, D14102.
http://dx.doi.org/10.1029/2005jd006289
[7] Milgroom, J. and Giller, E. (2013) Courting the Rain: Rethinking Seasonality and Adaptation to Recurrent Drought in Semi-Arid Southern Africa. Agricultural Systems, 118, 91-104.
http://dx.doi.org/10.1016/j.agsy.2013.03.002
[8] Ngongondo, C.S., Li, L., Gong, L.B., Xu, C.-Y. and Alemaw, B.F. (2013) Flood Frequency under Changing Climate in the Upper Kafue River Basin, Southern Africa: A Large Scale Hydrological Model Application. Journal of Stochastic Environmental Research and Risk Assessment, 27, 1883-1898.
http://dx.doi.org/10.1007/s00477-013-0724-z
[9] Niang, I., Ruppel, O.C., Abdrabo, M.A., Essel, A., Lennard, C., Padgham, J. and Urquhart, P. (2014) Africa. In: Barros, V.R., Field, C.B., Dokken, D.J., Mastrandrea, M.D., Mach, K.J., Bilir, T.E., Chatterjee, M., Ebi, K.L., Estrada, Y.O., Genova, R.C., Girma, B., Kissel, E.S., Levy, A.N., MacCracken, S., Mastrandrea, P.R. and White, L.L., Eds., Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, 1199-1265.
[10] Thomas, D.S.G., Twyman, C., Osbahr, H. and Hewitson, B. (2007) Adaptation to Climate Change and Variability: Farmer Responses to Intraseasonal Precipitation Trends in South Africa. Climatic Change, 83, 301-322.
http://dx.doi.org/10.1007/s10584-006-9205-4
[11] Stringer, L.C., Dyer, J.C., Reed, M.S., Dougill, A.J., Twyman, C. and Mkwambasi, D. (2009) Adaptations to Climate Change, Drought and Desertification: Local Insights to Enhance Policy in Southern Africa. Environmental Science and Policy, 12, 748-765.
http://dx.doi.org/10.1016/j.envsci.2009.04.002
[12] Alemaw, B.F., Onema, J.M.K. and Love, D. (2013) Regional Drought Severity Assessment at a Basin Scale in the Limpopo Drainage System. Journal of Water Resource and Protection, 5, 1110-1116.
http://dx.doi.org/10.4236/jwarp.2013.511116
[13] Ainsworth, E.A. and Long, S.P. (2005) What Have We Learned from 15 Years of Free-Air CO2 Enrichment (FACE)? A Meta-Analytic Review of the Responses of Photosynthesis, Canopy Properties and Plant Production to Rising CO2. New Phytologist, 165, 351-371.
http://dx.doi.org/10.1111/j.1469-8137.2004.01224.x
[14] Muller, C., Cramer, W., Hare, W.L. and Lotze-Campen, H. (2011) Climate Change Risks for African Agriculture. Proceedings of the National Academy of Sciences of the United States of America, 108, 4313-4315.
http://dx.doi.org/10.1073/pnas.1015078108
[15] Dixon, R.K., Smith, J. and Guill, S. (2003) Life on the Edge: Vulnerability and Adaptation of African Ecosystems to Global Climate Change. Mitigation and Adaptation Strategies for Global Change, 8, 93-113.
http://dx.doi.org/10.1023/A:1026001626076
[16] Lobell, D.B., Burke, M.B., Tebaldi, C., Mastrandrea, M.D., Falcon, W.P. and Naylor, R.L. (2008) Prioritizing Climate Change Adaptation Needs for Food Security in 2030. Science, 319, 607-610.
http://dx.doi.org/10.1126/science.1152339
[17] Fischer, G., Shah, M., Tubiello, F.N. and Van Velhuizen, H. (2005) Socio-Economic and Climate Change Impacts on Agriculture: An Integrated Assessment, 1990-2080. Philosophical Transactions of the Royal Society B, 360, 2067-2083.
http://dx.doi.org/10.1098/rstb.2005.1744
[18] Challinor, A., Wheeler, T., Garforth, C., Crauford, P. and Kassam, A. (2007) Assessing the Vulnerability of Food Crop Systems in Africa to Climate Change. Climatic Change, 83, 381-399.
http://dx.doi.org/10.1007/s10584-007-9249-0
[19] World Bank (2009) Agriculture and Rural Sector South Asia: Shared Views on Development and Climate Change. World Bank, Washington DC, 97-107.
[20] Connolly-Boutin, L. and Smit, B. (2015) Climate Change, Food Security, and Livelihoods in Sub-Saharan Africa. Regional Environmental Change.
http://dx.doi.org/10.1007/s10113-015-0761-x
[21] Makondo, C.C., Chola, K. and Moonga, B. (2014) Climate Change Adaptation and Vulnerability: A Case of Rain Dependent Small-Holder Farmers in Selected Districts in Zambia. American Journal of Climate Change, 3, 388-403.
http://dx.doi.org/10.4236/ajcc.2014.34034
[22] Nakicenovic, N. and Swart, R. (2000) Special Report on Emissions Scenarios: A Special Report of Working Group III of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, 599 p.
[23] Jones, J.W. (1986) Decision Support System for Agrotechnology Transfer. Agrotechnology Transfer, 2, 1-5.
[24] Williams, J.R. (1995) The EPIC Model. In: Singh, V.P., Ed., Computer Models of Watershed Hydrology, Water Resources Publications, Highlands Ranch, 909-1000.
[25] Jones, C.A. and Kiniry, J.R. (1986) CERES-Maize: A Simulation Model of Maize Growth and Development. Texas A&M University Press, College Station, 194 p.
[26] McCown, R.L., Hammer, G.L., Hargreaves, J.N.G., Holzworth, D. and Huth, N.I. (1995) APSIM—An Agricultural Production System Simulation Model for Operational Research. Mathematics and Computers in Simulation, 39, 225-231.
http://dx.doi.org/10.1016/0378-4754(95)00063-2
[27] FAO (1992) Cropwat—A Computer Program for Irrigation Planning and Management. FAO Irrigation and Drainage Publications, No. 46, Rome.
[28] Alemaw, B.F., Chaoka, T.R. and Totolo, O. (2006) Investigation of Sustainability of Rain-Fed Agriculture through Soil Moisture Modeling in the Pandamatenga Plains of Botswana. Physics and Chemistry of the Earth, 31, 960-996.
http://dx.doi.org/10.1016/j.pce.2006.08.009
[29] Fant, C. (2009) CliCrop: A One-Dimensional Model to Calculate Water Stress on Crops. University of Colorado at Boulder, UMI Dissertations Publishing, Ann Arbor.
[30] SCS (1985) National Engineering Handbook, Section 4: Hydrology, Soil Conservation Service. USDA, Washington DC.
[31] Crespo, O., Hachigonta, S. and Tadross, M. (2011) Sensitivity of southern African Maize Yields to the Definition of Sowing Dekad in a Changing Climate. Climate Change, 106, 267-283.
http://dx.doi.org/10.1007/s10584-010-9924-4
[32] De Wit, C.T. (1958) Transpiration and Crop Yields. Agricultural Research Reports 64.6 Pudoc, Wageningen, 88 p.
[33] Hanks, R.J. (1983) Yield and Water-Use Relationships: An Overview. In: Taylor, H.M., Jordan, W.R. and Sinclair, T.R., Eds., Limitations to Efficient Water Use in Crop Production, American Society of Agronomy, Madison, 393-411.
[34] Nonhebel, S. (1994) The Effects of Use of Average Instead of Daily Weather Data in Crop Growth Simulation Models. Agricultural Systems, 44, 377-396.
http://dx.doi.org/10.1016/0308-521X(94)90194-K
[35] Simane, B., van Keulen, H. and Stol, W. (1994) Application of a Crop Growth Model (SUCROS-87) to Assess the Effect of Moisture Stress on Yield Potential of Durum Wheat in Ethiopia. Agricultural Systems, 44, 337-352.
http://dx.doi.org/10.1016/0308-521X(94)90226-6
[36] Doorenbos, J. and Kassam, A.H. (1979) Yield Response to Water. FAO Irrigation and Drainage Paper No. 33, Rome.
[37] Ministry of Agriculture of Botswana (1990) Pandamatenga Development Study. Main Report—Annex B-Hydrology and Main Drainage. Arup-Atkins. Ministry of Agriculture, Gaborone.
[38] Iglesias, A., Quiroga, S. and Diz, A. (2011) Looking into the Future of Agriculture in a Changing Climate. European Review of Agricultural Economics, 38, 427-447.
http://dx.doi.org/10.1093/erae/jbr037
[39] Ainsworth, E.A. (2008) Rice Production in a Changing Climate: A Meta-Analysis of Responses to Elevated Carbon Dioxide and Elevated Ozone Concentration. Global Change Biology, 14, 1642-1650.
http://dx.doi.org/10.1111/j.1365-2486.2008.01594.x
[40] Hillel, D. and Rosenzweig, C. (2010) Handbook of Climate Change and Agroecosystems: Impacts, Adaptation, and Mitigation. Imperial College Press, London, 440 p.
[41] Wigley, T.M.L. (2008) MAGICC/SCENGEN 5.3 User Manual. NCAR, Boulder.
[42] Alemaw, B.F. (2012) Resilience, Reliability and Risk Analyses of Maize, Sorghum and Sunflower in Rain-Fed Systems Using a Soil Moisture Modeling Approach. Agricultural Sciences, 3, 114-123.
http://dx.doi.org/10.4236/as.2012.31015
[43] Klaij, M.C. and Vachaud, G. (1992) Seasonal Water Balance of a Sandy Soil in Niger Cropped with Pearl Millet, Based on Profile Moisture Measurements. Agricultural Water Management, 21, 313-330.
http://dx.doi.org/10.1016/0378-3774(92)90053-Y
[44] Hashimoto, T., Stedinger, J.R. and Loucks, D.P. (1982) Reliability, Resiliency, and Vulnerability Criteria for Water Resource System Performance Evaluation. Water Resources Research, 18, 14-20.
http://dx.doi.org/10.1029/WR018i001p00014
[45] Maier, H.R., Lence, B.J. Tolson, B.A. and Foschi, R.O. (2001) First-Order Reliability Method for Estimating Reliability, Vulnerability, and Resilience. Water Resources Research, 37, 779-790.
http://dx.doi.org/10.1029/2000WR900329
[46] Fowler, H.J., Kilsby, C.G. and O’Connell, P.E. (2003) Modeling the Impacts of Climatic Change and Variability on the Reliability, Resilience, and Vulnerability of a Water Resource System. Water Resources Research, 39, 1222.
http://dx.doi.org/10.1029/2002WR001778
[47] Apipattanavis, S., Podestá, G., Rajagopalan, B. and Katz, R.W. (2007) A Semiparametric Multivariate and Multisite Weather Generator. Water Resources Research, 49, 7205-7220.
[48] Grantz, K., Rajagopalan, B., Clark, M. and Zagona, E. (2005) A Technique for Incorporating Large-Scale Climate Information in Basin-Scale Ensemble Streamflow Forecasts. Water Resources Research, 41, 1-14.
http://dx.doi.org/10.1029/2004WR003467
[49] Gebretsadik, Y., Strzepek, K. and Schlosser, C.A. (2014) A Hybrid Approach to Incorporating Climate Change and Variability into Climate Scenario for Impact Assessments. World Institute for Development Economics Research, WIDER Working Paper 2014/112, 1-18.
[50] Yates, D., Gangopadhyay, S., Rajagopalan, B. and Strzepek, K. (2003) A Technique for Generating Regional Climate Scenarios Using a Nearest-Neighbor Algorithm. Water Resources Research, 39, 1-15.
http://dx.doi.org/10.1029/2002wr001769
[51] Riha, S.J., Wilks, D.S. and Simoens, P. (1996) Impact of Temperature and Precipitation Variability on Crop Model Predictions. Climatic Change, 32, 293-311.
http://dx.doi.org/10.1007/bf00142466
[52] Wilks, D.S. (1992) Adapting Stochastic Weather Generation Algorithms for Climate Change Studies. Climatic Change, 22, 67-84.
http://dx.doi.org/10.1007/BF00143344
[53] Alemaw, B.F. and Chaoka, T.R. (2008) A Parametric Daily Precipitation Model Application in Botswana. Botswana Journal of Technology, 17, 41-47.
[54] Alemaw, B.F. and Chaoka, T.R. (2003) A Continental Scale Water Balance Model: A GIS-Approach for Southern Africa. Physics and Chemistry of the Earth, 28, 957-966.
http://dx.doi.org/10.1016/j.pce.2003.08.040
[55] CCARDESA (2014) Enhancing Evidence-Based Climate Change Adaptation Research and Policy for Agriculture in Southern Africa, CCARPASA Project, Final Report. CCARDESA Secretariat, Gaborone, 70.
[56] FAO (2010) Climate-Smart Agriculture—Policies, Practices and Financing for Food Security, Adaptation and Mitigation. UN Food and Agriculture Organization (FAO), Rome, 41.
[57] Palm, C.A., Vosti, S.A., Sanchez, P.A. and Ericksen, P. (2005) Slash-and-Burn Agriculture: The Search for Alternatives. Columbia University Press, New York.
[58] Norman, D.W., Worman, F.D., Siebert, J.D. and Modiakgotla, E. (1995) The Farming Systems Approach to Development and Appropriate Technology Generation. Food and Agriculture Organization of the United Nations, Rome.
http://www.fao.org/docrep/v5330e/v5330e00.HTM.
[59] McIntyre, B.D., Herren, H.R., Wakhungu, J. and Watson, R.T. (2009) International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD): Global Report. Island Press, Washington DC, 590.