Abstract
The temporal and spatial distribution of fires for an area in east-central Senegal was determined on the basis of multi-temporal NOAA AVHRR satellite images. Three years of data (1990–1992) were analyzed defining the boundary between two different fire regimes: very few and scattered fires to the north with the majority of fires south of the boundary. This boundary was stable for the three dry seasons examined and was identical to the northernmost extension of fires as determined by visual inspection of a hard copy Landsat image mosaic. Fire frequencies were analyzed in relation to dominant vegetation types and yearly precipitation, and the findings compared to results of a field survey of the local population's perceptions of the causes and implications of fires. Survey results clearly showed that the use of fire in the study area is closely linked to the utilization of the environment for livestock grazing and crop production. We conclude that the local population has a high degree of awareness about the application of fire, that different fire use practices concerning can be identified respectively in the grasslands of the northern and the savanna of the southern parts of the study area, and that these practices reflect a well adapted production strategy. Finally, we recommend policy decisions be more flexible in the light of local understanding of fire use.
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REFERENCES
CSE (1994). Centre de Suivi Ecologique, 1994. Rapport Technique 1994 du Centre de Suivi Ecologique pour l'année 1994. Document interne 23 p.
Dwyer, E. (1998). A Global analysis of vegetation fires using satellite images: Spatial and temporal dynamics. Ambio 27: 175–181.
EOS EARTH OBSERVATIONS SCIENCES. (1995). Global vegetation fire product. Final report. Document number EOS-95/125-FR–001.
Eva, H., and Lambin, E. (1998). Remote sensing of biomass burning in tropical regions: Sampling issues and multisensor approach. Remote Sensing of Environment 64: 292–315.
Fall, M. (1987). Les populations de la Casamance et les feux précoces. M. Sc. thesis, Faculty of Forestry and Geodesy, University of Laval, Canada.
Flasse, S., and Ceccato, P. (1996). A contextual algorithm for AVHRR fire detection. International Journal of Remote Sensing 17: 419–424.
Goldammer, J. G. (1993). Historical biogeography of fire: Tropical and subtropical. In P. J. Crutzen and J. G. Goldammer (eds.), Fire in the Environment, the Ecological, Atmospheric and Climatic Importance of Vegetation Fires, John Wiley & Sons, pp. 297–315.
Grégoire, J. M. (1996). Use of AVHRR data for the study of vegetation fires in Africa: fire management perspectives. In, D'Souza, G. et al. (eds.), Advances in the Use of NOAA-AVHRR Data for Land Applications. ECSC, EEC, EAEC, Brussels and Luxembourg, pp. 311–335.
Hough, J. L. (1993). Why burn the bush? Social approaches to bush-fire management in West African National parks. Biological Conservation 65: 23–28.
Koffi, B. (1995). Monitoring of Multiannual Biomass Burning Activity for the African Continent, as Derived from NOAA, Final Report 01/07/1995, JRC/Ispra.
Krull, J. M., and Breman, H. (1982). L'influence de feu. In, de Vries and Djitéye (eds.), La productivité des pâturages sahéiens. Une étude des sols, des végétations et de l'exploitations de cette ressource naturelle, Centre for Agricultural Publishing and Documentation, Wageningen, pp. 346–351.
Langaas, S. (1992). Temporal and spatial distribution of savanna fires in Senegal and the Gambia, West Africa, 1989-1990, derived from multi-temporal AVHRR night images. International Journal of Remote Sensing 2: 21–36.
Menaut, J. C., Abbadie, L., Lavenu, F., Loudjani, P., and Podaire, A. (1991). Biomass burning in West African Savannas. In, J. S. Levine (ed.), Global Biomass Burning, Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA., pp. 133–143.
Michel, P. (1973). Le bassins des fleuves Sénégal et Gambie. Etude géomorphologique. Thése lettres, Strasbourg et Mém. Orstom, Paris, 63, 3 tomes, 752 p.
Nielsen, T. T., and Rasmussen, K. (1997). The distribution in time and space of savanna fires in Burkina Faso, as determined from NOAAAVHRR data. Danish Journal of Geography 97: 86–98.
Nielsen, T. T. (Forthcomming). The application and consequences of absolute channel 2 thresholds in active fire monitoring. International Journal of Remote Sensing.
Robinson, J. M. (1991). Fire from space: Global fire evaluation using infrared remote sensing. International Journal of Remote Sensing 12: 3–24.
Schmitz, A. (1996). Contrôle et utilisation du feu en zones arides et subhumides africaines. Cahiers FAO, Conservation (29), FAO, Roma 1996. 211 p.
Traoré, F. I. (1988). Phénomène des feux de brousse dans les Régions de Ziguinchor-Kolda: Perception des paysans. Rapport préparé pour le Projet de Protection des Forêts du Sud. 78 p.
USGS (1996). Vegetation zones of Senegal. USGS & Le Centre de Suivi Ecologique, Ministère de l'Environment et de la Protection de la Nature, 1996.
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Mbow, C., Nielsen, T.T. & Rasmussen, K. Savanna Fires in East-Central Senegal: Distribution Patterns, Resource Management and Perceptions. Human Ecology 28, 561–583 (2000). https://doi.org/10.1023/A:1026487730947
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DOI: https://doi.org/10.1023/A:1026487730947