Prat, C. (1990). Relation entre érosion et systèmes de production dans le bassin-versant sud du lac Managua (Nicaragua). Cah. Orstom, sér. Pédol., vol. XXV, no 1-2, 171-182. Reuler, H. van (1996). Nutrient management over extended cropping periods in the shifting cultivation system in south-west Côte d’Ivoire. Tropical Resource Management Papers 12. Wageningen Agricultural University, Wageningen, the Netherlands. Sanchez, P.A. (1976). Properties and management of soils in the tropics. John Wiley & Sons, New York, USA. Sanchez, P.A. (1977). Soil management under shifting cultivation. In: Sanchez P.A. (eds.). Review of soils research in tropical Latin America. Technical Bulletin 219. North Carolina State University, Raleigh, USA. Sanchez, P.A. (1984). Nutrient dynamics following rainforest clearing and cultivation. In: Mertin, J.V. (ed.). Proceedings of international workshop on soils. Townville, Queensland, Australia. 12-13 September 1983. ACIAR, Canberra, Australia. Slaats, J.J.P. (1995). Chromolaena odorata fallow in food cropping systems: an agronomic assessment in south-west Ivory Coast. Tropical Resource Management Papers 11. Wageningen Agricultural University, Wageningen, the Netherlands. Soil Survey Staff (1992). Keys to Soil Taxonomy. SMSS Technical Monograph 19, 5th ed. USDA, Blacksburg, Virginia, USA. 541pp. Tchatat, M., Puig, H. and Fabre, A. (1996). Genèse et organisation des jardins de case des zones forestières humides du Cameroun. Rev. Ecol. (Terre Vie), vol. 51, pp. 197-221. Touber, L. (1993). Air photo interpretation for overall land inventory of the research area (TCP, Lu1): explanatory note. Internal document. SC-DLO, Wageningen, the Netherlands. Tulaphitak, T., Pairintra, C. and Kyuma, K. (1985). Changes in soil fertility and tilth under shifting cultivation: changes in soil nutrient status. Soil Sci. Plant Nutr. 31 (2), 239-249. Ulery, A.L., Graham, R.C. and Amrhein, C. (1993). Wood-ash composition and soil pH following intensive burning. Soil Science 156 (5). Volkoff, B., Cerri, C.C. and F. Andreux, F. (1989). Matière organique et conservation des sols en zones tropicales forestières : voies actuelles de recherches. In: 9eme réunion du Comité ouest et centre africain de corrélation des sols, 14-23 novembre 1988, Cotonou, Bénin. Waterloo, M.J., Ntonga, J.C., Dolman, A.J. and Ayangma, A.B. (2000). Impact of shifting cultivation and selective logging on the hydrology and erosion of rain forest land in south Cameroon. 2 nd revised edition. Tropenbos-Cameroon Documents 3. The Tropenbos- Cameroon Programme, Kribi, Cameroon. 84pp. 56
ANNEXES ANNEX 1: LANDSCAPE ECOLOGICAL MAP OF THE RESEARCH AREA: BIPINDI- AKOM II-LOLODORF REGION, SOUTHWEST CAMEROON (SOURCE: VAN GEMERDEN AND HAZEU, 1999). 57
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Farming systems in the evergreen fo
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ABSTRACT Nounamo, L. and Yemefack,
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4.3.4 Relationship between commerci
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PREFACE This report presents the fi
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stability and structure, and the de
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(calcium), le pourcentage de satura
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Figure 1.1. Location map of the TCP
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600 28 500 27 Rainfall (mm) 400 300
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- Page 20 and 21: Characteristics of the four sub-sit
- Page 22 and 23: 2.2.7 Household labour study The st
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- Page 28 and 29: Table 2.6. cont’d Species Ewondo
- Page 30 and 31: dispose of land near the village, o
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- Page 38 and 39: Table 2.17. Priority socio-economic
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- Page 42 and 43: 3.2.3 Laboratory soil analyses Soil
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- Page 46 and 47: as it is practised in shifting cult
- Page 48 and 49: 15 years. The vegetation evolves th
- Page 50 and 51: Organic matter. Organic carbon incr
- Page 52 and 53: Microbial Biomass Carbon C (ugC/g s
- Page 54 and 55: processes on soil chemical properti
- Page 56 and 57: soil, result in loss of soil aggreg
- Page 58 and 59: 4 TRENDS IN FIELD EXPANSION AND SOI
- Page 60 and 61: Greenland, 1960; Sanchez, 1976; Vol
- Page 62 and 63: 5 SOLUTIONS TO FARMERS’ PROBLEMS
- Page 64 and 65: Integrated Nutrient Management meth
- Page 66 and 67: REFERENCES Almy, S.W., Besong, M.T.
- Page 70 and 71: ANNEX 2: CHECKLIST FOR THE EXPLORAT
- Page 72 and 73: ANNEX 4: AGRICULTURAL LAND EXPANSIO
- Page 74: ANNEX 6: AGRICULTURAL LAND EXPANSIO
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