Fjölrit RALA - 05.12.1999, Page 76

Fjölrit RALA - 05.12.1999, Page 76
74 Desertification in Botswana Ringrose, S. and Matheson, W. 1987b. Spatial assessment of indicators of range degradation in Bot- swana hardveld environment. Remote Sensing of Environment 30, 1-19. Sefe, F., Ringrose, S. and Matheson, W. 1996. Desertifícation in North-Central Botswana: causes pro- cesses and impacts. Joumal of Soil and Water Conservation 51(3), 241-248. Sefe, F.T.K. and Acquah, B.K. 1995. Environmental Degradation: the dynamics and implications for rural development. Paper presented at the National Rural Development Planning Workshop, Ga- borone, 20-24 March, 30 pp. Silitshena, R., Perkins, J.S. and Ringrose, S. 1997. Development co-operation objectives and the beef protocol: the case of Botswana: a study of the livestock/wildlife/ tourism/degradation linkages. Un- published report commissioned by Metroeconomica Limited on behalf of the European Union, 75 pp. Stanford, S. 1983. Management of Pastoral Development in the Third World. John Wiley and Sons, Chichester, 234 pp. United Nations 1994. Elaboration of an Intemational Convention to Combat Desertification in Coun- tries Experiencing Serious Droughts and/or Desertification: Particularly Africa. Government Printer Gaborone, 94 pp. Van Vegten, J.A. 1981. Man-made vegetation changes: an example ffom Botswana’s savanna. Working Paper No. 40, N.I.R., Gaborone, 67 pp. Westoby, M., Walker, B. and Noy-Meir, I. 1989. Opportunistic management for rangelands not at equilibrium. Journal of Range Management 42(4), 266-274. White, R. 1992. Livestock Development and Pastoral Production on Communal Rangeland in Bot- swana. Case Study prepared for Workshop on New Directions in African Range Management Policy, Matopos, Bulawayo, Zimbabwe, 13-17 January. Commonwealth Secretariat, 74 pp. Warren', A. and Agnew, C. 1988. An assessment of desertification and land degradation in arid and semi-arid areas. Drylands PaperNo. 2, IIED, London, 38 pp.
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