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Vulnerability Assessment of the Maize and Sorghum Crops to Climate Change in Botswana

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Abstract

This study examines the sensitivity of maize and sorghum crops to global warming in Botswana, a country with arid climatic conditions and shortfalls in locally produced grain. The vulnerability of the maize and sorghum crops to climate change were studied using crop simulation models while climate change scenarios were generated from Global Circulation Models. Simulated yields indicated that rain-fed crop production under the observed climate was a small fraction of what could be produced under optimal conditions. The gap was attributed to both physical (especially lack of rain) and socio-economic constraints. Using the southern African core climate change scenario, simulated yields declined by 36% in the case of maize and 31% for sorghum in the sand veldt region. Yield reductions from thehard veldt region were in the order of 10% for both maize and sorghum. The growing season became shorter, the average reduction in days in the sand veldt region being 5 and 8 days for maize and sorghum respectively, and correspondingly, 3 and 4 days over the hard veldt region. The food security option currently followed in Botswana was found to be a good adaptive strategy under a changed climate.

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References

  • Adams, R. M., Rosenzweig, C., Peart, R. M., Ritchie, J. T., McCarl, B. A., Glyer, J. D., Curry, R. B., Jones, J. W., Booth, K. J., and Aleen, L. H. Jr.: 1990, ‘Global Climate Change and U.S. Agriculture’, Nature 345, 219–223.

    Google Scholar 

  • Adringa, J.: 1986, Solar Radiation in Botswana, University of Botswana, 18 pp.

  • Alexandrov, V. A. and Hoogenboom, G.: 2000, ‘The Impact of Climate Variability and Change on Crop Yield in Bulgaria’, Agric. For. Meteorol. 104, 315–327.

    Google Scholar 

  • Archambault, D.: 2001, ‘Climate Change and Crop Production’, Western Producer, November 1, 2001.

  • Bhalotra, Y. P. R.: 1985, Drought in Botswana, Department of Meteorological Services, Gaborone, 30 pp.

    Google Scholar 

  • Bhalotra, Y. P. R.: 1987, Climate of Botswana Part II: Elements of Climate 1. Rainfall, Department of Meteorological Services, Gaborone, 40 pp.

    Google Scholar 

  • Boer, G. J., Arpe, K., Blackburn, M., De'que', M., Gates, W. L., Hart, T.L., leTreut, H., Roeckner, E., Sheinin, D. A., Simmonds, I., Smith, R. N. B., Tokioka, T., Weatherald, R. T., and Williamson, D.: 1992: ‘Some Results from an Intercomparison of the Climates Simulated by 14 Atmospheric General Circulation Models’, J. Geophys. Res. 97, 12771–12786.

    Google Scholar 

  • Carter, T. R., Saarikko, R. A., and Niemi, K. J.: 1996, ‘Assessing the Risks and Uncertainties of Regional Crop Potential under a Changing Climate in Finland’, Agriculture and Food Science in Finland 5, 329–330.

    Google Scholar 

  • Chipanshi, A. C. and Ringrose, S.: 2001, ‘Reflections on the 1997/98 El Nino Phenomenon in Botswana’, Weather 56 (1), 11–23.

    Google Scholar 

  • Frere, M. and Propov, G.: 1979, Agrometeorological Crop Monitoring and Forecasting, F.A.O. Plant Production and Protection Technical Paper No. 73, Rome.

  • Gates, W. L.: 1992, ‘AMIP: The Atmospheric Model Intercomparison Project’, Bull. Amer.Meteorol. Soc. 73 (12), 1962–1970.

    Google Scholar 

  • Hulme, M., Arntzen, J., Downing T., Leemans R., Malcolm J., Reynard N., Ringrose, S., and Rogers, D.: 1996, Climate Change and Southern Africa: An Exploration of some Potential Impacts and Implications in the SADC Region, WWF and Climate Research Unit, Norwich, U.K., 103 pp.

    Google Scholar 

  • Hulme, M., Wigley, T. M. L., Barrow, E. M. Raper, S. C. B., Centella, A., Smith, S., and Chipanshi, A. C.: 2000, Using a Climate Scenario Generator for Vulnerability and Adaptation Assessments: MAGICC and SCENGEN, Version 2.4 Workbook, Climatic Research Unit, UEA, 6Norwich, U.K., 52 pp.

  • Houghton, J. T., Meira Filho, L., Callander, B., Harris, N., Kattenberg, A., and Maskell, K. (eds.): 1996, Climate Change 1995–The Science of Climate Change. Contribution of WG I to the Second Assessment Report of the IPCC, Cambridge University Press, Cambridge, 570 pp.

    Google Scholar 

  • Hunt, L. A., Pararajasingham, S. Jones, J.W., Hoogenboom, G., Imamura, D. T., and Ogoshi, R. M.: 1993, ‘Gencalc: Software to Facilitate the Use of Crop Models to Analyze Field Experiments’, Agron. J. 85, 1090–1094.

    Google Scholar 

  • IPCC: 1992, Preliminary Guidelines for Assessing the Impacts of Climate Change, Cambridge University Press, Cambridge, U.K.

    Google Scholar 

  • IPCC: 1998, The Regional Impacts of Climate Change, Cambridge University Press, Cambridge U.K., 517 pp.

    Google Scholar 

  • Jansen, D. M.: 1990, ‘Potential Rice Yields in FutureWeather Conditions in Different Parts of Asia’, Netherlands Journal of Agricultural Sciences 38, 661–680.

    Google Scholar 

  • Joubert, A. M.: 1995, ‘Simulations of Southern African Climate by Early Generation General Circulation Models’, South African Journal of Science 91, 85–91.

    Google Scholar 

  • Leggett, J., Pepper, W. J., and Swart, R. J.: 1992, ‘Emission Scenarios for the IPCC: An Update’, in Houghton, J. T., Callander, B. A., and Varney, S. K. (eds.), Climate Change 1992: The Supplementary Report to the IPCC Scientific Assessment, Cambridge University Press, Cambridge, pp. 75–95.

    Google Scholar 

  • Makhwaje, E., Patrick, C., and Tacheba, G.: 1995, Descriptive Diagnostic Survey Report for Ngamiland Agricultural Region, Department of Agricultural Research, Ministry of Agriculture, Gaborone, Botswana, 33 pp.

  • McFarlene, N. A., Boer, G. J., Blachet, J.–P., and Lazare, M.: 1992, ‘The Canadian Climate Centre Second Generation General Circulation Model and its Equilibrium Climate’, J. Climate 5, 1013–1044.

    Google Scholar 

  • Ministry of Finance and Development Planning (MoFDP): 1997, National Development Plan 7. Government Printer, Gaborone. Republic of Botswana (1991). National Policy on Agricultural Development, Government Paper No. 1 of 1991, Gaborone, 13 pp.

  • Nicholson, S. E.: 1994, ‘Recent Rainfall Fluctuations in Africa and their Relationship to Past Conditions over the Continent’, The Holocene 4 (2), 121–131.

    Google Scholar 

  • Rhergen, G.: 1985, Soils and Land Suitability of the Boro–Shorobe Area, UNDP/FAO/GOB BOT/85/011 Field Document No. 1.

  • Rhergen, G.: 1986, Soils of the Lake Ngami and Nhabe River Area, UNDP/FAO/GOB BOT/85/011, Field Document Draft.

  • Ringius, L., Downing, T. E., Hulme, M., and Selrod R.: 1996, Climate Change in Africa: Issues and Regional Strategy, Cicero Report No. 1996 (2), Cicero, Oslo, Norway, 154 pp.

    Google Scholar 

  • Ringrose, S. and Matheson, W.: 1990, ‘A Landsat Analysis of Range Conditions in the Botswana Kalahari Drought’, International Journal Remote Sensing 12 (5), 1023–1051.

    Google Scholar 

  • Rosenzweig, C. Allen, L., Hollinger, S., and Jones, J. (eds.): 1995, Climate Change and Agriculture: Analysis of Potential International Impacts, American Society of Agronomy, Vol. 59, 382 pp.

  • Salisbury, F. B. and Ross, C.W.: 1985, Plant Physiology, 3rd edn.,Wadsworth Publishing Company, Belmont CA, 540 pp.

    Google Scholar 

  • Saseendran, S. A., Sing, K. K., Rathore, L. S., and Sing, S. V.: 2000, ‘Effects of Climatic Change on Rice Production in the Tropical Humid Climate of Kerala, India’, Clim. Change 44, 495–514.

    Google Scholar 

  • Schlesinger, M. E. and Zhao, Z. C.: 1989, ‘Seasonal Climate Changes Induced by Doubling CO2 as Simulated by the OSU Atmospheric GCM Mixed Layer Ocean Model’, J. Climate 2, 459–495.

    Google Scholar 

  • Schneider, S. H.: 1992, ‘Climate modelling’, Scientific American 256 (5), 72–82.

    Google Scholar 

  • Sigwele, H. K.: 1993, Food Self–Sufficiency and Food Security: Which Way Forward?, Paper presented at the Botswana Society Conference, Gaborone, Botswana, October 18–20, 1993.

  • Silitshena, R.M. K. and McLeod, G.: 1998, Botswana: A physical, Social and Economic Geography, 2nd edn., Longman Botswana, Gaborone, 316 pp.

    Google Scholar 

  • Simms, D.: 1981, Agroclimatological Information, Crop Requirements and Agricultural Zones for Botswana, Land Utilization Division of the Ministry of Agriculture, Republic of Botswana, Gaborone, 195 pp.

  • SMEC: 1987, Southern Okavango Integrated Water Development Phase I. Final Report, Vol. II: Irrigated Agricultural Development Potential, Ministry of Mineral Resources and Water Affairs, Gaborone, Botswana.

  • Smith, J. B. and Pitts, G. J.: 1997, ‘Regional Climate Change Scenarios for Vulnerability and Adaptation Assessments’, Clim. Change 36, 3–21.

    Google Scholar 

  • Toure, A., Major, D. J., and Lindwall, C. W.: 1995, ‘Sensitivity of FourWheat Simulation Models to Climate Change’, Can. J. Plant Sci. 75, 69–74.

    Google Scholar 

  • Tsuji, G. Y., Uehara, G., and Balas, S. (eds.): 1994, DSSAT v3, University of Hawaii, Honolulu, Hawaii.

    Google Scholar 

  • Van der Maas, H.: 1994, Matsheng Baseline Survey: Part I, Main Report and Part II, Annexes Volume, Ministry of Local Government Lands and Housing, Gaborone, Botswana, 179 pp.

  • Van Regenmortel, G.: 1995, ‘Climate Variability in Botswana and Enso’, Botswana Notes and Records 29, 63–79.

    Google Scholar 

  • Verbeek, K.: 1989, Soils of Southeast Ngamiland, Soil Mapping and Advisory Services of Botswana, FAO/UNDP/ROB, Field Document 14.

  • Vossen, P.: 1990, ‘Algorithm for the Simulation of Bare Sandy Soil Evaporation and its Application for the Assessment of Planted Areas in Botswana’, Agric. For. Meteorol. 50, 173–188.

    Google Scholar 

  • Vossen, P. Dambe, D. D., and Molimi, K. A.: 1985, Agrometeorological Survey of the Integrated Farming Pilot Project (IFPP) of Pelotshethla, Department of Agricultural Field Services/Meteorological Services, 93 pp.

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Chipanshi, A.C., Chanda, R. & Totolo, O. Vulnerability Assessment of the Maize and Sorghum Crops to Climate Change in Botswana. Climatic Change 61, 339–360 (2003). https://doi.org/10.1023/B:CLIM.0000004551.55871.eb

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